./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product23.cil.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_5ca48058-3ad0-4628-a512-eddda5e31cf3/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5ca48058-3ad0-4628-a512-eddda5e31cf3/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5ca48058-3ad0-4628-a512-eddda5e31cf3/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5ca48058-3ad0-4628-a512-eddda5e31cf3/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product23.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5ca48058-3ad0-4628-a512-eddda5e31cf3/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5ca48058-3ad0-4628-a512-eddda5e31cf3/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 6775cf40df2c7fe85c2d16019d10d145a8673615 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 17:50:46,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:50:46,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:50:46,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:50:46,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:50:46,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:50:46,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:50:46,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:50:46,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:50:46,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:50:46,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:50:46,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:50:46,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:50:46,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:50:46,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:50:46,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:50:46,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:50:46,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:50:46,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:50:46,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:50:46,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:50:46,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:50:46,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:50:46,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:50:46,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:50:46,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:50:46,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:50:46,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:50:46,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:50:46,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:50:46,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:50:46,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:50:46,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:50:46,951 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:50:46,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:50:46,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:50:46,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:50:46,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:50:46,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:50:46,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:50:46,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:50:46,959 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5ca48058-3ad0-4628-a512-eddda5e31cf3/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 17:50:46,989 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:50:46,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:50:46,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:50:46,991 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:50:46,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:50:46,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:50:46,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:50:47,000 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:50:47,000 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:50:47,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:50:47,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:50:47,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:50:47,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:50:47,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:50:47,002 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:50:47,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:50:47,003 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:50:47,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:50:47,003 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:50:47,004 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:50:47,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:50:47,004 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:50:47,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:50:47,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:50:47,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:50:47,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:50:47,006 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:50:47,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:50:47,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:50:47,008 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_5ca48058-3ad0-4628-a512-eddda5e31cf3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5ca48058-3ad0-4628-a512-eddda5e31cf3/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6775cf40df2c7fe85c2d16019d10d145a8673615 [2020-12-01 17:50:47,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:50:47,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:50:47,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:50:47,366 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:50:47,367 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:50:47,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5ca48058-3ad0-4628-a512-eddda5e31cf3/bin/ukojak/../../sv-benchmarks/c/product-lines/minepump_spec1_product23.cil.c [2020-12-01 17:50:47,493 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5ca48058-3ad0-4628-a512-eddda5e31cf3/bin/ukojak/data/38844cb4c/b70a26624d4e4f79852f6fc16e104db4/FLAGda6e4597f [2020-12-01 17:50:48,157 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:50:48,158 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5ca48058-3ad0-4628-a512-eddda5e31cf3/sv-benchmarks/c/product-lines/minepump_spec1_product23.cil.c [2020-12-01 17:50:48,190 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5ca48058-3ad0-4628-a512-eddda5e31cf3/bin/ukojak/data/38844cb4c/b70a26624d4e4f79852f6fc16e104db4/FLAGda6e4597f [2020-12-01 17:50:48,450 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5ca48058-3ad0-4628-a512-eddda5e31cf3/bin/ukojak/data/38844cb4c/b70a26624d4e4f79852f6fc16e104db4 [2020-12-01 17:50:48,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:50:48,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:50:48,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:50:48,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:50:48,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:50:48,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:50:48" (1/1) ... [2020-12-01 17:50:48,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a233d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:50:48, skipping insertion in model container [2020-12-01 17:50:48,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:50:48" (1/1) ... [2020-12-01 17:50:48,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:50:48,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:50:48,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:50:48,964 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:50:49,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:50:49,109 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:50:49,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:50:49 WrapperNode [2020-12-01 17:50:49,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:50:49,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:50:49,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:50:49,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:50:49,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:50:49" (1/1) ... [2020-12-01 17:50:49,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:50:49" (1/1) ... [2020-12-01 17:50:49,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:50:49,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:50:49,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:50:49,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:50:49,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:50:49" (1/1) ... [2020-12-01 17:50:49,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:50:49" (1/1) ... [2020-12-01 17:50:49,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:50:49" (1/1) ... [2020-12-01 17:50:49,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:50:49" (1/1) ... [2020-12-01 17:50:49,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:50:49" (1/1) ... [2020-12-01 17:50:49,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:50:49" (1/1) ... [2020-12-01 17:50:49,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:50:49" (1/1) ... [2020-12-01 17:50:49,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:50:49,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:50:49,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:50:49,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:50:49,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:50:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5ca48058-3ad0-4628-a512-eddda5e31cf3/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 17:50:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:50:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-12-01 17:50:49,380 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-12-01 17:50:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-12-01 17:50:49,381 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-12-01 17:50:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-12-01 17:50:49,381 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-12-01 17:50:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-12-01 17:50:49,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-12-01 17:50:49,382 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-12-01 17:50:49,382 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-12-01 17:50:49,382 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-12-01 17:50:49,382 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-12-01 17:50:49,382 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-12-01 17:50:49,382 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-12-01 17:50:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 17:50:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-12-01 17:50:49,383 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-12-01 17:50:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:50:49,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:50:50,876 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:50:50,876 INFO L298 CfgBuilder]: Removed 38 assume(true) statements. [2020-12-01 17:50:50,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:50:50 BoogieIcfgContainer [2020-12-01 17:50:50,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:50:50,881 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:50:50,881 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:50:50,896 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:50:50,897 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:50:50" (1/1) ... [2020-12-01 17:50:50,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:50:50,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:50,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 64 states and 87 transitions. [2020-12-01 17:50:50,967 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 87 transitions. [2020-12-01 17:50:50,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 17:50:50,974 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:51,256 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 17:50:51,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:51,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 64 states and 85 transitions. [2020-12-01 17:50:51,274 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2020-12-01 17:50:51,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 17:50:51,276 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:51,449 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 17:50:51,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:51,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 66 states and 88 transitions. [2020-12-01 17:50:51,486 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 88 transitions. [2020-12-01 17:50:51,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 17:50:51,488 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:51,601 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 17:50:51,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:51,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 76 states and 109 transitions. [2020-12-01 17:50:51,789 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 109 transitions. [2020-12-01 17:50:51,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 17:50:51,791 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:51,909 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 17:50:51,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:51,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 77 states and 110 transitions. [2020-12-01 17:50:51,930 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 110 transitions. [2020-12-01 17:50:51,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 17:50:51,933 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:51,991 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 17:50:52,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:52,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 78 states and 111 transitions. [2020-12-01 17:50:52,019 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 111 transitions. [2020-12-01 17:50:52,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 17:50:52,025 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:52,130 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 17:50:52,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:52,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 79 states and 112 transitions. [2020-12-01 17:50:52,144 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 112 transitions. [2020-12-01 17:50:52,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 17:50:52,146 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:52,269 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 17:50:52,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:52,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 96 states and 150 transitions. [2020-12-01 17:50:52,887 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 150 transitions. [2020-12-01 17:50:52,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-01 17:50:52,890 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:52,951 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 17:50:52,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:52,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 97 states and 151 transitions. [2020-12-01 17:50:52,970 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 151 transitions. [2020-12-01 17:50:52,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-01 17:50:52,972 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:53,060 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 17:50:53,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:53,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 106 states and 168 transitions. [2020-12-01 17:50:53,727 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 168 transitions. [2020-12-01 17:50:53,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-01 17:50:53,732 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:53,866 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 17:50:54,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:54,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 120 states and 198 transitions. [2020-12-01 17:50:54,878 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 198 transitions. [2020-12-01 17:50:54,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-01 17:50:54,882 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:54,938 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 17:50:54,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:54,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 125 states and 207 transitions. [2020-12-01 17:50:54,990 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 207 transitions. [2020-12-01 17:50:54,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-01 17:50:54,998 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:55,065 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 17:50:55,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:55,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 129 states and 214 transitions. [2020-12-01 17:50:55,112 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 214 transitions. [2020-12-01 17:50:55,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-01 17:50:55,114 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:55,210 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 17:50:55,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:55,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 131 states and 221 transitions. [2020-12-01 17:50:55,335 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 221 transitions. [2020-12-01 17:50:55,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-01 17:50:55,341 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:55,390 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 17:50:55,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:55,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 132 states and 222 transitions. [2020-12-01 17:50:55,408 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 222 transitions. [2020-12-01 17:50:55,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-01 17:50:55,410 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:55,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 17:50:55,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:55,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 136 states and 231 transitions. [2020-12-01 17:50:55,529 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 231 transitions. [2020-12-01 17:50:55,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-01 17:50:55,539 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:55,655 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 17:50:55,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:55,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 138 states and 236 transitions. [2020-12-01 17:50:55,981 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 236 transitions. [2020-12-01 17:50:55,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-01 17:50:55,983 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:56,025 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 17:50:56,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:56,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 136 states and 230 transitions. [2020-12-01 17:50:56,045 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 230 transitions. [2020-12-01 17:50:56,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-01 17:50:56,046 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:56,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 17:50:56,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:56,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 139 states and 238 transitions. [2020-12-01 17:50:56,435 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 238 transitions. [2020-12-01 17:50:56,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-01 17:50:56,436 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:56,511 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 17:50:57,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:57,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 148 states and 257 transitions. [2020-12-01 17:50:57,194 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 257 transitions. [2020-12-01 17:50:57,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-01 17:50:57,195 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:57,236 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 17:50:57,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:57,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 149 states and 258 transitions. [2020-12-01 17:50:57,258 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 258 transitions. [2020-12-01 17:50:57,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-01 17:50:57,260 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:57,655 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 17:50:58,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:58,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 152 states and 264 transitions. [2020-12-01 17:50:58,547 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 264 transitions. [2020-12-01 17:50:58,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-01 17:50:58,549 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:58,601 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 17:50:58,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:58,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 153 states and 265 transitions. [2020-12-01 17:50:58,627 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 265 transitions. [2020-12-01 17:50:58,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-01 17:50:58,629 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:58,676 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 17:50:59,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:59,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 160 states and 281 transitions. [2020-12-01 17:50:59,430 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 281 transitions. [2020-12-01 17:50:59,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-01 17:50:59,432 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:59,487 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 17:50:59,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:59,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 161 states and 282 transitions. [2020-12-01 17:50:59,512 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 282 transitions. [2020-12-01 17:50:59,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-01 17:50:59,515 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:59,582 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-01 17:50:59,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:59,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 168 states and 294 transitions. [2020-12-01 17:50:59,881 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 294 transitions. [2020-12-01 17:50:59,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-01 17:50:59,882 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:59,921 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-01 17:50:59,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:59,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 169 states and 294 transitions. [2020-12-01 17:50:59,934 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 294 transitions. [2020-12-01 17:50:59,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-01 17:50:59,935 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:50:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:50:59,976 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-01 17:50:59,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:50:59,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 170 states and 295 transitions. [2020-12-01 17:50:59,995 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 295 transitions. [2020-12-01 17:50:59,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-01 17:50:59,997 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:00,039 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-01 17:51:02,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:02,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 186 states and 338 transitions. [2020-12-01 17:51:02,614 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 338 transitions. [2020-12-01 17:51:02,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-01 17:51:02,621 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:02,694 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-01 17:51:02,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:02,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 187 states and 338 transitions. [2020-12-01 17:51:02,712 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 338 transitions. [2020-12-01 17:51:02,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-01 17:51:02,718 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:02,778 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-01 17:51:04,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:04,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 199 states and 367 transitions. [2020-12-01 17:51:04,618 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 367 transitions. [2020-12-01 17:51:04,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-01 17:51:04,621 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:04,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:04,664 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-01 17:51:04,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:04,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 200 states and 368 transitions. [2020-12-01 17:51:04,688 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 368 transitions. [2020-12-01 17:51:04,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-01 17:51:04,690 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:04,728 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-01 17:51:04,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:04,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 203 states and 374 transitions. [2020-12-01 17:51:04,755 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 374 transitions. [2020-12-01 17:51:04,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-01 17:51:04,757 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:04,800 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-01 17:51:04,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:04,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 204 states and 375 transitions. [2020-12-01 17:51:04,823 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 375 transitions. [2020-12-01 17:51:04,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-01 17:51:04,826 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:04,860 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-01 17:51:05,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:05,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 211 states and 387 transitions. [2020-12-01 17:51:05,405 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 387 transitions. [2020-12-01 17:51:05,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-01 17:51:05,408 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:05,445 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-01 17:51:05,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:05,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 212 states and 389 transitions. [2020-12-01 17:51:05,460 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 389 transitions. [2020-12-01 17:51:05,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-01 17:51:05,463 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:05,499 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 17:51:07,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:07,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 220 states and 409 transitions. [2020-12-01 17:51:07,950 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 409 transitions. [2020-12-01 17:51:07,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-01 17:51:07,953 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:07,999 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-12-01 17:51:08,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:08,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 225 states and 412 transitions. [2020-12-01 17:51:08,719 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 412 transitions. [2020-12-01 17:51:08,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-01 17:51:08,751 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:08,790 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-01 17:51:09,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:09,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 227 states and 416 transitions. [2020-12-01 17:51:09,406 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 416 transitions. [2020-12-01 17:51:09,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-01 17:51:09,410 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:09,481 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 17:51:10,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:10,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 233 states and 431 transitions. [2020-12-01 17:51:10,495 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 431 transitions. [2020-12-01 17:51:10,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-01 17:51:10,498 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:10,536 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-01 17:51:10,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:10,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 234 states and 432 transitions. [2020-12-01 17:51:10,559 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 432 transitions. [2020-12-01 17:51:10,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-01 17:51:10,562 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:10,599 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 17:51:10,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:10,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 239 states and 441 transitions. [2020-12-01 17:51:10,816 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 441 transitions. [2020-12-01 17:51:10,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-01 17:51:10,819 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:10,859 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-01 17:51:11,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:11,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 240 states and 444 transitions. [2020-12-01 17:51:11,255 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 444 transitions. [2020-12-01 17:51:11,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-01 17:51:11,258 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:11,307 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-01 17:51:11,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:11,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 241 states and 445 transitions. [2020-12-01 17:51:11,339 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 445 transitions. [2020-12-01 17:51:11,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-01 17:51:11,342 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-01 17:51:11,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:11,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 246 states and 453 transitions. [2020-12-01 17:51:11,730 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 453 transitions. [2020-12-01 17:51:11,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-01 17:51:11,732 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:11,772 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-12-01 17:51:11,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:11,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 247 states and 453 transitions. [2020-12-01 17:51:11,789 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 453 transitions. [2020-12-01 17:51:11,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-01 17:51:11,791 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:11,830 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 17:51:11,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:11,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 248 states and 454 transitions. [2020-12-01 17:51:11,852 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 454 transitions. [2020-12-01 17:51:11,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-01 17:51:11,855 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:11,895 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 17:51:12,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:12,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 249 states and 457 transitions. [2020-12-01 17:51:12,343 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 457 transitions. [2020-12-01 17:51:12,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-01 17:51:12,346 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:12,402 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 17:51:12,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:12,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 251 states and 462 transitions. [2020-12-01 17:51:12,435 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 462 transitions. [2020-12-01 17:51:12,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-01 17:51:12,438 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:12,492 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-12-01 17:51:12,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:12,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 252 states and 462 transitions. [2020-12-01 17:51:12,512 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 462 transitions. [2020-12-01 17:51:12,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-01 17:51:12,514 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:12,557 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-12-01 17:51:12,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:12,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 255 states and 466 transitions. [2020-12-01 17:51:12,722 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 466 transitions. [2020-12-01 17:51:12,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-01 17:51:12,724 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:12,764 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-01 17:51:12,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:12,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 256 states and 467 transitions. [2020-12-01 17:51:12,830 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 467 transitions. [2020-12-01 17:51:12,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-01 17:51:12,832 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:12,875 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-12-01 17:51:12,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:12,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 257 states and 468 transitions. [2020-12-01 17:51:12,900 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 468 transitions. [2020-12-01 17:51:12,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-01 17:51:12,903 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:12,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:12,947 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-12-01 17:51:12,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:12,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 260 states and 473 transitions. [2020-12-01 17:51:12,975 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 473 transitions. [2020-12-01 17:51:12,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-01 17:51:12,978 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:13,037 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-12-01 17:51:13,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:13,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 261 states and 474 transitions. [2020-12-01 17:51:13,076 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 474 transitions. [2020-12-01 17:51:13,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-01 17:51:13,079 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:13,130 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-12-01 17:51:13,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:13,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 262 states and 475 transitions. [2020-12-01 17:51:13,158 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 475 transitions. [2020-12-01 17:51:13,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-01 17:51:13,162 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:13,212 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-12-01 17:51:13,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:13,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 264 states and 477 transitions. [2020-12-01 17:51:13,245 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 477 transitions. [2020-12-01 17:51:13,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-01 17:51:13,248 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:51:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:51:13,340 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-12-01 17:51:13,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:51:13,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 102 states and 136 transitions. [2020-12-01 17:51:13,361 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 136 transitions. [2020-12-01 17:51:13,362 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 17:51:13,362 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 58 iterations. [2020-12-01 17:51:13,373 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 17:51:13,909 INFO L569 CodeCheckObserver]: Invariant with dag size 7 [2020-12-01 17:51:13,920 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 17:51:13,920 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 17:51:13,922 INFO L569 CodeCheckObserver]: Invariant with dag size 19 [2020-12-01 17:51:13,927 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 17:51:13,928 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 17:51:13,928 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 17:51:13,928 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 17:51:13,929 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-12-01 17:51:13,929 INFO L569 CodeCheckObserver]: Invariant with dag size 9 [2020-12-01 17:51:13,930 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 17:51:13,930 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 17:51:13,931 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 17:51:13,931 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 17:51:13,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:51:13 ImpRootNode [2020-12-01 17:51:13,932 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:51:13,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:51:13,933 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:51:13,933 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:51:13,934 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:50:50" (3/4) ... [2020-12-01 17:51:13,949 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 17:51:13,962 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2020-12-01 17:51:13,963 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2020-12-01 17:51:13,963 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2020-12-01 17:51:13,963 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2020-12-01 17:51:13,963 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2020-12-01 17:51:13,963 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2020-12-01 17:51:13,964 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2020-12-01 17:51:13,964 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2020-12-01 17:51:13,986 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2020-12-01 17:51:13,987 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2020-12-01 17:51:13,989 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-12-01 17:51:13,989 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-01 17:51:13,990 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 17:51:13,991 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 17:51:13,992 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 17:51:14,034 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(pumpRunning == 0) && 1 == systemActive) || pumpRunning == \old(pumpRunning)) || (!(pumpRunning == 0) && !(methaneLevelCritical == 0))) || ((methaneLevelCritical == 0 && !(0 == systemActive)) && !(1 == systemActive)) [2020-12-01 17:51:14,036 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: pumpRunning == \old(pumpRunning) [2020-12-01 17:51:14,113 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5ca48058-3ad0-4628-a512-eddda5e31cf3/bin/ukojak/witness.graphml [2020-12-01 17:51:14,113 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:51:14,116 INFO L168 Benchmark]: Toolchain (without parser) took 25655.67 ms. Allocated memory was 90.2 MB in the beginning and 408.9 MB in the end (delta: 318.8 MB). Free memory was 57.4 MB in the beginning and 280.4 MB in the end (delta: -223.0 MB). Peak memory consumption was 96.6 MB. Max. memory is 16.1 GB. [2020-12-01 17:51:14,117 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 90.2 MB. Free memory was 47.4 MB in the beginning and 47.4 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:51:14,120 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.42 ms. Allocated memory is still 90.2 MB. Free memory was 57.2 MB in the beginning and 56.7 MB in the end (delta: 546.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:51:14,120 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.61 ms. Allocated memory is still 90.2 MB. Free memory was 56.7 MB in the beginning and 54.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:51:14,121 INFO L168 Benchmark]: Boogie Preprocessor took 71.99 ms. Allocated memory is still 90.2 MB. Free memory was 54.4 MB in the beginning and 52.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:51:14,121 INFO L168 Benchmark]: RCFGBuilder took 1589.44 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 52.5 MB in the beginning and 89.3 MB in the end (delta: -36.8 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. [2020-12-01 17:51:14,122 INFO L168 Benchmark]: CodeCheck took 23050.80 ms. Allocated memory was 119.5 MB in the beginning and 408.9 MB in the end (delta: 289.4 MB). Free memory was 89.3 MB in the beginning and 285.6 MB in the end (delta: -196.3 MB). Peak memory consumption was 94.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:51:14,123 INFO L168 Benchmark]: Witness Printer took 181.10 ms. Allocated memory is still 408.9 MB. Free memory was 285.6 MB in the beginning and 280.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 17:51:14,125 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 9 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22.4s, OverallIterations: 58, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: -172416624 SDtfs, -6840496 SDslu, -1611410396 SDs, 0 SdLazy, 1620645632 SolverSat, -557821344 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 63.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26655 GetRequests, 26377 SyntacticMatches, 12 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30453 ImplicationChecksByTransitivity, 15.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 2593 NumberOfCodeBlocks, 2593 NumberOfCodeBlocksAsserted, 57 NumberOfCheckSat, 2536 ConstructedInterpolants, 0 QuantifiedInterpolants, 234571 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 57 InterpolantComputations, 50 PerfectInterpolantSequences, 986/1022 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: 3]: 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: 781]: Loop Invariant Derived loop invariant: tmp == methaneLevelCritical || !(tmp == 0) - InvariantResult [Line: 686]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 781]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((!(pumpRunning == 0) && 1 == systemActive) || pumpRunning == \old(pumpRunning)) || (!(pumpRunning == 0) && !(methaneLevelCritical == 0))) || ((methaneLevelCritical == 0 && !(0 == systemActive)) && !(1 == systemActive)) - InvariantResult [Line: 838]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: pumpRunning == \old(pumpRunning) - InvariantResult [Line: 919]: Loop Invariant Derived loop invariant: (1 == systemActive && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 919]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 848]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 517]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 90.2 MB. Free memory was 47.4 MB in the beginning and 47.4 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 646.42 ms. Allocated memory is still 90.2 MB. Free memory was 57.2 MB in the beginning and 56.7 MB in the end (delta: 546.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 104.61 ms. Allocated memory is still 90.2 MB. Free memory was 56.7 MB in the beginning and 54.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.99 ms. Allocated memory is still 90.2 MB. Free memory was 54.4 MB in the beginning and 52.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1589.44 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 52.5 MB in the beginning and 89.3 MB in the end (delta: -36.8 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. * CodeCheck took 23050.80 ms. Allocated memory was 119.5 MB in the beginning and 408.9 MB in the end (delta: 289.4 MB). Free memory was 89.3 MB in the beginning and 285.6 MB in the end (delta: -196.3 MB). Peak memory consumption was 94.1 MB. Max. memory is 16.1 GB. * Witness Printer took 181.10 ms. Allocated memory is still 408.9 MB. Free memory was 285.6 MB in the beginning and 280.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...