./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_i25_o25-2.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_1ab0a693-001f-46d7-a1ca-41b8bb5c2eba/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1ab0a693-001f-46d7-a1ca-41b8bb5c2eba/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1ab0a693-001f-46d7-a1ca-41b8bb5c2eba/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1ab0a693-001f-46d7-a1ca-41b8bb5c2eba/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i25_o25-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1ab0a693-001f-46d7-a1ca-41b8bb5c2eba/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1ab0a693-001f-46d7-a1ca-41b8bb5c2eba/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 e41a2d809c80fa02a88d74970854b389f65de2dd ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:25:06,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:25:06,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:25:06,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:25:06,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:25:06,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:25:06,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:25:06,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:25:06,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:25:06,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:25:06,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:25:06,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:25:06,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:25:06,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:25:06,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:25:06,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:25:06,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:25:06,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:25:06,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:25:06,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:25:06,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:25:06,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:25:06,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:25:06,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:25:06,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:25:06,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:25:06,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:25:06,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:25:06,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:25:06,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:25:06,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:25:06,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:25:06,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:25:06,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:25:06,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:25:06,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:25:06,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:25:06,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:25:06,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:25:06,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:25:06,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:25:06,937 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1ab0a693-001f-46d7-a1ca-41b8bb5c2eba/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:25:06,987 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:25:06,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:25:06,989 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:25:06,989 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:25:06,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:25:06,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:25:06,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:25:06,991 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:25:06,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:25:06,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:25:06,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:25:06,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:25:06,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:25:06,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:25:06,994 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:25:06,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:25:06,994 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:25:06,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:25:06,995 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:25:06,995 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:25:06,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:25:06,995 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:25:06,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:25:06,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:25:06,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:25:06,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:25:06,997 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:25:06,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:25:06,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:25:06,997 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_1ab0a693-001f-46d7-a1ca-41b8bb5c2eba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1ab0a693-001f-46d7-a1ca-41b8bb5c2eba/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e41a2d809c80fa02a88d74970854b389f65de2dd [2020-12-01 16:25:07,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:25:07,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:25:07,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:25:07,388 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:25:07,390 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:25:07,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1ab0a693-001f-46d7-a1ca-41b8bb5c2eba/bin/ukojak/../../sv-benchmarks/c/recursive-simple/id_i25_o25-2.c [2020-12-01 16:25:07,480 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1ab0a693-001f-46d7-a1ca-41b8bb5c2eba/bin/ukojak/data/dd1119a9f/5a8be53af085465d858882c6734ec943/FLAGa9cd5a521 [2020-12-01 16:25:08,138 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:25:08,140 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1ab0a693-001f-46d7-a1ca-41b8bb5c2eba/sv-benchmarks/c/recursive-simple/id_i25_o25-2.c [2020-12-01 16:25:08,153 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1ab0a693-001f-46d7-a1ca-41b8bb5c2eba/bin/ukojak/data/dd1119a9f/5a8be53af085465d858882c6734ec943/FLAGa9cd5a521 [2020-12-01 16:25:08,490 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1ab0a693-001f-46d7-a1ca-41b8bb5c2eba/bin/ukojak/data/dd1119a9f/5a8be53af085465d858882c6734ec943 [2020-12-01 16:25:08,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:25:08,493 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:25:08,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:25:08,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:25:08,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:25:08,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:25:08" (1/1) ... [2020-12-01 16:25:08,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41d51ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:08, skipping insertion in model container [2020-12-01 16:25:08,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:25:08" (1/1) ... [2020-12-01 16:25:08,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:25:08,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:25:08,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:25:08,696 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:25:08,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:25:08,754 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:25:08,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:08 WrapperNode [2020-12-01 16:25:08,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:25:08,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:25:08,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:25:08,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:25:08,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:08" (1/1) ... [2020-12-01 16:25:08,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:08" (1/1) ... [2020-12-01 16:25:08,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:25:08,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:25:08,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:25:08,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:25:08,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:08" (1/1) ... [2020-12-01 16:25:08,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:08" (1/1) ... [2020-12-01 16:25:08,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:08" (1/1) ... [2020-12-01 16:25:08,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:08" (1/1) ... [2020-12-01 16:25:08,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:08" (1/1) ... [2020-12-01 16:25:08,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:08" (1/1) ... [2020-12-01 16:25:08,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:08" (1/1) ... [2020-12-01 16:25:08,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:25:08,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:25:08,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:25:08,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:25:08,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1ab0a693-001f-46d7-a1ca-41b8bb5c2eba/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 16:25:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:25:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:25:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:25:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-12-01 16:25:08,915 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-12-01 16:25:08,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:25:09,230 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:25:09,231 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 16:25:09,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:25:09 BoogieIcfgContainer [2020-12-01 16:25:09,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:25:09,234 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:25:09,235 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:25:09,248 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:25:09,248 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:25:09" (1/1) ... [2020-12-01 16:25:09,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:25:09,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:09,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-12-01 16:25:09,331 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-12-01 16:25:09,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:25:09,337 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:09,634 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 16:25:09,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:09,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2020-12-01 16:25:09,808 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-12-01 16:25:09,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:25:09,809 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:09,993 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:25:10,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:10,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 23 states and 31 transitions. [2020-12-01 16:25:10,489 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2020-12-01 16:25:10,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 16:25:10,491 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:10,626 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-01 16:25:11,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:11,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 28 states and 42 transitions. [2020-12-01 16:25:11,105 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-12-01 16:25:11,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 16:25:11,107 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:11,266 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-01 16:25:11,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:11,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 33 states and 55 transitions. [2020-12-01 16:25:11,799 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2020-12-01 16:25:11,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-01 16:25:11,802 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:11,895 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 16:25:12,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:12,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 38 states and 70 transitions. [2020-12-01 16:25:12,426 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 70 transitions. [2020-12-01 16:25:12,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-01 16:25:12,428 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:12,537 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-01 16:25:13,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:13,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 43 states and 87 transitions. [2020-12-01 16:25:13,305 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 87 transitions. [2020-12-01 16:25:13,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-01 16:25:13,308 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:13,477 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-12-01 16:25:14,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:14,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 48 states and 106 transitions. [2020-12-01 16:25:14,144 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 106 transitions. [2020-12-01 16:25:14,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-01 16:25:14,147 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:14,282 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-12-01 16:25:15,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:15,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 53 states and 127 transitions. [2020-12-01 16:25:15,028 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 127 transitions. [2020-12-01 16:25:15,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-01 16:25:15,031 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:15,146 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-12-01 16:25:15,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:15,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 58 states and 150 transitions. [2020-12-01 16:25:15,964 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 150 transitions. [2020-12-01 16:25:15,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-01 16:25:15,972 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:16,156 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-12-01 16:25:16,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:16,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 63 states and 175 transitions. [2020-12-01 16:25:16,987 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 175 transitions. [2020-12-01 16:25:16,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-01 16:25:16,989 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:17,158 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-12-01 16:25:17,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:17,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 68 states and 202 transitions. [2020-12-01 16:25:17,973 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 202 transitions. [2020-12-01 16:25:17,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-01 16:25:17,976 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:18,123 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-12-01 16:25:18,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:18,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 73 states and 231 transitions. [2020-12-01 16:25:18,992 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 231 transitions. [2020-12-01 16:25:18,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-01 16:25:18,994 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:19,217 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-12-01 16:25:20,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:20,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 78 states and 262 transitions. [2020-12-01 16:25:20,133 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 262 transitions. [2020-12-01 16:25:20,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-01 16:25:20,135 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:20,338 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-12-01 16:25:21,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:21,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 83 states and 295 transitions. [2020-12-01 16:25:21,251 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 295 transitions. [2020-12-01 16:25:21,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-01 16:25:21,255 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:21,478 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2020-12-01 16:25:22,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:22,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 88 states and 330 transitions. [2020-12-01 16:25:22,517 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 330 transitions. [2020-12-01 16:25:22,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-01 16:25:22,519 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:22,738 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-12-01 16:25:23,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:23,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 93 states and 367 transitions. [2020-12-01 16:25:23,764 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 367 transitions. [2020-12-01 16:25:23,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-01 16:25:23,766 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:23,990 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-12-01 16:25:25,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:25,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 98 states and 406 transitions. [2020-12-01 16:25:25,007 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 406 transitions. [2020-12-01 16:25:25,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-01 16:25:25,009 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:25,198 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-12-01 16:25:26,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:26,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 103 states and 447 transitions. [2020-12-01 16:25:26,345 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 447 transitions. [2020-12-01 16:25:26,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-01 16:25:26,347 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:26,557 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2020-12-01 16:25:27,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:27,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 108 states and 490 transitions. [2020-12-01 16:25:27,915 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 490 transitions. [2020-12-01 16:25:27,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-12-01 16:25:27,917 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:28,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2020-12-01 16:25:29,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:29,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 113 states and 535 transitions. [2020-12-01 16:25:29,314 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 535 transitions. [2020-12-01 16:25:29,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-12-01 16:25:29,315 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:29,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2020-12-01 16:25:30,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:30,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 118 states and 582 transitions. [2020-12-01 16:25:30,763 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 582 transitions. [2020-12-01 16:25:30,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-12-01 16:25:30,765 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:31,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2020-12-01 16:25:32,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:32,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 123 states and 631 transitions. [2020-12-01 16:25:32,359 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 631 transitions. [2020-12-01 16:25:32,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-12-01 16:25:32,361 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:32,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2020-12-01 16:25:34,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:34,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 128 states and 682 transitions. [2020-12-01 16:25:34,265 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 682 transitions. [2020-12-01 16:25:34,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-12-01 16:25:34,267 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:34,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2020-12-01 16:25:36,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:36,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 133 states and 735 transitions. [2020-12-01 16:25:36,361 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 735 transitions. [2020-12-01 16:25:36,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-12-01 16:25:36,362 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:36,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 0 proven. 876 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2020-12-01 16:25:38,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:38,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 138 states and 790 transitions. [2020-12-01 16:25:38,255 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 790 transitions. [2020-12-01 16:25:38,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-12-01 16:25:38,257 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:25:38,302 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:25:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:25:38,342 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:25:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:25:38,464 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:25:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:25:38,514 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:25:40,364 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 26 iterations. [2020-12-01 16:25:40,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:25:40 ImpRootNode [2020-12-01 16:25:40,507 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:25:40,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:25:40,508 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:25:40,509 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:25:40,511 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:25:09" (3/4) ... [2020-12-01 16:25:40,512 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 16:25:40,603 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1ab0a693-001f-46d7-a1ca-41b8bb5c2eba/bin/ukojak/witness.graphml [2020-12-01 16:25:40,603 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:25:40,605 INFO L168 Benchmark]: Toolchain (without parser) took 32111.05 ms. Allocated memory was 98.6 MB in the beginning and 400.6 MB in the end (delta: 302.0 MB). Free memory was 70.8 MB in the beginning and 285.9 MB in the end (delta: -215.1 MB). Peak memory consumption was 86.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:25:40,606 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 98.6 MB. Free memory is still 58.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:25:40,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.87 ms. Allocated memory is still 98.6 MB. Free memory was 70.6 MB in the beginning and 75.7 MB in the end (delta: -5.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:25:40,607 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.30 ms. Allocated memory is still 98.6 MB. Free memory was 75.7 MB in the beginning and 74.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:25:40,608 INFO L168 Benchmark]: Boogie Preprocessor took 27.48 ms. Allocated memory is still 98.6 MB. Free memory was 74.4 MB in the beginning and 73.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:25:40,608 INFO L168 Benchmark]: RCFGBuilder took 406.40 ms. Allocated memory is still 98.6 MB. Free memory was 73.3 MB in the beginning and 61.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:25:40,609 INFO L168 Benchmark]: CodeCheck took 31273.23 ms. Allocated memory was 98.6 MB in the beginning and 400.6 MB in the end (delta: 302.0 MB). Free memory was 61.2 MB in the beginning and 292.2 MB in the end (delta: -231.0 MB). Peak memory consumption was 72.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:25:40,609 INFO L168 Benchmark]: Witness Printer took 95.58 ms. Allocated memory is still 400.6 MB. Free memory was 292.2 MB in the beginning and 285.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 16:25:40,612 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 31.0s, OverallIterations: 26, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 369098752 SDtfs, 318767088 SDslu, 301989872 SDs, 0 SdLazy, 1887436330 SolverSat, 377487346 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 37.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52144 GetRequests, 50374 SyntacticMatches, 1472 SemanticMatches, 298 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35034 ImplicationChecksByTransitivity, 20.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 2184 NumberOfCodeBlocks, 2184 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2000 ConstructedInterpolants, 0 QuantifiedInterpolants, 540800 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 1 PerfectInterpolantSequences, 7500/15000 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 - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] int input = 25; [L13] CALL, EXPR id(input) VAL [\old(x)=25] [L7] COND FALSE !(x==0) VAL [\old(x)=25, x=25] [L8] CALL, EXPR id(x-1) VAL [\old(x)=24] [L7] COND FALSE !(x==0) VAL [\old(x)=24, x=24] [L8] CALL, EXPR id(x-1) VAL [\old(x)=23] [L7] COND FALSE !(x==0) VAL [\old(x)=23, x=23] [L8] CALL, EXPR id(x-1) VAL [\old(x)=22] [L7] COND FALSE !(x==0) VAL [\old(x)=22, x=22] [L8] CALL, EXPR id(x-1) VAL [\old(x)=21] [L7] COND FALSE !(x==0) VAL [\old(x)=21, x=21] [L8] CALL, EXPR id(x-1) VAL [\old(x)=20] [L7] COND FALSE !(x==0) VAL [\old(x)=20, x=20] [L8] CALL, EXPR id(x-1) VAL [\old(x)=19] [L7] COND FALSE !(x==0) VAL [\old(x)=19, x=19] [L8] CALL, EXPR id(x-1) VAL [\old(x)=18] [L7] COND FALSE !(x==0) VAL [\old(x)=18, x=18] [L8] CALL, EXPR id(x-1) VAL [\old(x)=17] [L7] COND FALSE !(x==0) VAL [\old(x)=17, x=17] [L8] CALL, EXPR id(x-1) VAL [\old(x)=16] [L7] COND FALSE !(x==0) VAL [\old(x)=16, x=16] [L8] CALL, EXPR id(x-1) VAL [\old(x)=15] [L7] COND FALSE !(x==0) VAL [\old(x)=15, x=15] [L8] CALL, EXPR id(x-1) VAL [\old(x)=14] [L7] COND FALSE !(x==0) VAL [\old(x)=14, x=14] [L8] CALL, EXPR id(x-1) VAL [\old(x)=13] [L7] COND FALSE !(x==0) VAL [\old(x)=13, x=13] [L8] CALL, EXPR id(x-1) VAL [\old(x)=12] [L7] COND FALSE !(x==0) VAL [\old(x)=12, x=12] [L8] CALL, EXPR id(x-1) VAL [\old(x)=11] [L7] COND FALSE !(x==0) VAL [\old(x)=11, x=11] [L8] CALL, EXPR id(x-1) VAL [\old(x)=10] [L7] COND FALSE !(x==0) VAL [\old(x)=10, x=10] [L8] CALL, EXPR id(x-1) VAL [\old(x)=9] [L7] COND FALSE !(x==0) VAL [\old(x)=9, x=9] [L8] CALL, EXPR id(x-1) VAL [\old(x)=8] [L7] COND FALSE !(x==0) VAL [\old(x)=8, x=8] [L8] CALL, EXPR id(x-1) VAL [\old(x)=7] [L7] COND FALSE !(x==0) VAL [\old(x)=7, x=7] [L8] CALL, EXPR id(x-1) VAL [\old(x)=6] [L7] COND FALSE !(x==0) VAL [\old(x)=6, x=6] [L8] CALL, EXPR id(x-1) VAL [\old(x)=5] [L7] COND FALSE !(x==0) VAL [\old(x)=5, x=5] [L8] CALL, EXPR id(x-1) VAL [\old(x)=4] [L7] COND FALSE !(x==0) VAL [\old(x)=4, x=4] [L8] CALL, EXPR id(x-1) VAL [\old(x)=3] [L7] COND FALSE !(x==0) VAL [\old(x)=3, x=3] [L8] CALL, EXPR id(x-1) VAL [\old(x)=2] [L7] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L8] CALL, EXPR id(x-1) VAL [\old(x)=1] [L7] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L8] CALL, EXPR id(x-1) VAL [\old(x)=0] [L7] COND TRUE x==0 [L7] return 0; VAL [\old(x)=0, \result=0, x=0] [L8] RET, EXPR id(x-1) VAL [\old(x)=1, id(x-1)=0, x=1] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=2, id(x-1)=1, x=2] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=3, id(x-1)=2, x=3] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=4, id(x-1)=3, x=4] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=5, id(x-1)=4, x=5] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=6, id(x-1)=5, x=6] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=7, id(x-1)=6, x=7] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=8, id(x-1)=7, x=8] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=9, id(x-1)=8, x=9] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=10, id(x-1)=9, x=10] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=11, id(x-1)=10, x=11] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=12, id(x-1)=11, x=12] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=13, id(x-1)=12, x=13] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=14, id(x-1)=13, x=14] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=15, id(x-1)=14, x=15] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=16, id(x-1)=15, x=16] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=17, id(x-1)=16, x=17] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=18, id(x-1)=17, x=18] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=19, id(x-1)=18, x=19] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=20, id(x-1)=19, x=20] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=21, id(x-1)=20, x=21] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=22, id(x-1)=21, x=22] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=23, id(x-1)=22, x=23] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=24, id(x-1)=23, x=24] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=25, id(x-1)=24, x=25] [L8] return id(x-1) + 1; [L13] RET, EXPR id(input) [L13] int result = id(input); [L14] COND TRUE result == 25 [L4] __assert_fail("0", "id_i25_o25-2.c", 4, "reach_error") * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 98.6 MB. Free memory is still 58.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.87 ms. Allocated memory is still 98.6 MB. Free memory was 70.6 MB in the beginning and 75.7 MB in the end (delta: -5.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.30 ms. Allocated memory is still 98.6 MB. Free memory was 75.7 MB in the beginning and 74.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.48 ms. Allocated memory is still 98.6 MB. Free memory was 74.4 MB in the beginning and 73.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 406.40 ms. Allocated memory is still 98.6 MB. Free memory was 73.3 MB in the beginning and 61.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 31273.23 ms. Allocated memory was 98.6 MB in the beginning and 400.6 MB in the end (delta: 302.0 MB). Free memory was 61.2 MB in the beginning and 292.2 MB in the end (delta: -231.0 MB). Peak memory consumption was 72.9 MB. Max. memory is 16.1 GB. * Witness Printer took 95.58 ms. Allocated memory is still 400.6 MB. Free memory was 292.2 MB in the beginning and 285.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...