./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/forester-heap/sll-queue_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fed395d8-305a-466c-9636-f77cf287ea21/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fed395d8-305a-466c-9636-f77cf287ea21/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fed395d8-305a-466c-9636-f77cf287ea21/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fed395d8-305a-466c-9636-f77cf287ea21/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-queue_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fed395d8-305a-466c-9636-f77cf287ea21/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fed395d8-305a-466c-9636-f77cf287ea21/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e5083763cd1026dac92f37bc5a05779baf01a71b ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-10-26 22:40:36,891 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:40:36,892 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:40:36,904 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:40:36,904 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:40:36,905 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:40:36,906 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:40:36,907 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:40:36,908 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:40:36,909 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:40:36,909 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:40:36,909 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:40:36,911 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:40:36,911 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:40:36,912 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:40:36,913 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:40:36,913 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:40:36,915 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:40:36,917 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:40:36,918 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:40:36,919 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:40:36,920 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:40:36,921 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:40:36,922 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:40:36,922 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:40:36,923 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:40:36,924 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:40:36,924 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:40:36,925 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:40:36,927 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:40:36,927 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:40:36,927 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:40:36,928 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:40:36,928 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:40:36,928 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:40:36,929 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:40:36,929 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fed395d8-305a-466c-9636-f77cf287ea21/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-26 22:40:36,942 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:40:36,943 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:40:36,943 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:40:36,944 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 22:40:36,944 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 22:40:36,944 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 22:40:36,944 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:40:36,945 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:40:36,945 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:40:36,945 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:40:36,945 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:40:36,945 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:40:36,945 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:40:36,945 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:40:36,947 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:40:36,947 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:40:36,947 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:40:36,947 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-26 22:40:36,947 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-26 22:40:36,947 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:40:36,947 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:40:36,948 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-26 22:40:36,948 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:40:36,948 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:40:36,948 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:40:36,948 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-26 22:40:36,948 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:40:36,948 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:40:36,949 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_fed395d8-305a-466c-9636-f77cf287ea21/bin-2019/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(__VERIFIER_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 -> e5083763cd1026dac92f37bc5a05779baf01a71b [2018-10-26 22:40:36,984 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:40:36,993 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:40:36,996 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:40:36,996 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:40:36,997 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:40:36,997 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fed395d8-305a-466c-9636-f77cf287ea21/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/sll-queue_false-unreach-call_false-valid-memcleanup.i [2018-10-26 22:40:37,041 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fed395d8-305a-466c-9636-f77cf287ea21/bin-2019/ukojak/data/244c56965/1200d1ef79c64b9f83b19fef7473d4f2/FLAG7fbb05bff [2018-10-26 22:40:37,439 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:40:37,440 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fed395d8-305a-466c-9636-f77cf287ea21/sv-benchmarks/c/forester-heap/sll-queue_false-unreach-call_false-valid-memcleanup.i [2018-10-26 22:40:37,449 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fed395d8-305a-466c-9636-f77cf287ea21/bin-2019/ukojak/data/244c56965/1200d1ef79c64b9f83b19fef7473d4f2/FLAG7fbb05bff [2018-10-26 22:40:37,461 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fed395d8-305a-466c-9636-f77cf287ea21/bin-2019/ukojak/data/244c56965/1200d1ef79c64b9f83b19fef7473d4f2 [2018-10-26 22:40:37,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:40:37,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 22:40:37,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:40:37,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:40:37,470 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:40:37,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:40:37" (1/1) ... [2018-10-26 22:40:37,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f3a0eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:40:37, skipping insertion in model container [2018-10-26 22:40:37,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:40:37" (1/1) ... [2018-10-26 22:40:37,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:40:37,520 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:40:37,748 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:40:37,761 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:40:37,822 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:40:37,857 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:40:37,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:40:37 WrapperNode [2018-10-26 22:40:37,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:40:37,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:40:37,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:40:37,859 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:40:37,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:40:37" (1/1) ... [2018-10-26 22:40:37,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:40:37" (1/1) ... [2018-10-26 22:40:37,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:40:37,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:40:37,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:40:37,968 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:40:37,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:40:37" (1/1) ... [2018-10-26 22:40:37,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:40:37" (1/1) ... [2018-10-26 22:40:37,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:40:37" (1/1) ... [2018-10-26 22:40:37,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:40:37" (1/1) ... [2018-10-26 22:40:37,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:40:37" (1/1) ... [2018-10-26 22:40:37,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:40:37" (1/1) ... [2018-10-26 22:40:37,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:40:37" (1/1) ... [2018-10-26 22:40:37,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:40:37,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:40:38,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:40:38,000 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:40:38,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:40:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fed395d8-305a-466c-9636-f77cf287ea21/bin-2019/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 [2018-10-26 22:40:38,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-26 22:40:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-26 22:40:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-26 22:40:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-10-26 22:40:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-10-26 22:40:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:40:38,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:40:39,579 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:40:39,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:40:39 BoogieIcfgContainer [2018-10-26 22:40:39,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:40:39,580 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-26 22:40:39,580 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-26 22:40:39,590 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-26 22:40:39,590 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:40:39" (1/1) ... [2018-10-26 22:40:39,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:40:39,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:39,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 84 states and 134 transitions. [2018-10-26 22:40:39,626 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 134 transitions. [2018-10-26 22:40:39,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-26 22:40:39,628 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:39,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:40:39,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:39,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 84 states and 129 transitions. [2018-10-26 22:40:39,728 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 129 transitions. [2018-10-26 22:40:39,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-26 22:40:39,728 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:39,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:40:39,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:39,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 88 states and 135 transitions. [2018-10-26 22:40:39,913 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 135 transitions. [2018-10-26 22:40:39,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-26 22:40:39,914 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:39,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:40:39,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:39,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 90 states and 134 transitions. [2018-10-26 22:40:39,987 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 134 transitions. [2018-10-26 22:40:39,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-26 22:40:39,988 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:40,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:40:40,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:40,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 93 states and 136 transitions. [2018-10-26 22:40:40,318 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 136 transitions. [2018-10-26 22:40:40,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-26 22:40:40,319 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:40,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:40:40,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:40,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 99 states and 142 transitions. [2018-10-26 22:40:40,741 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 142 transitions. [2018-10-26 22:40:40,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-26 22:40:40,741 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:40,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:40:40,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:40,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 100 states and 140 transitions. [2018-10-26 22:40:40,785 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 140 transitions. [2018-10-26 22:40:40,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-26 22:40:40,786 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:40,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:40:40,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:40,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 101 states and 138 transitions. [2018-10-26 22:40:40,833 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 138 transitions. [2018-10-26 22:40:40,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-26 22:40:40,833 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:40,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 22:40:40,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:40,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 86 states and 119 transitions. [2018-10-26 22:40:40,943 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 119 transitions. [2018-10-26 22:40:40,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-26 22:40:40,943 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:41,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:40:41,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:41,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 91 states and 122 transitions. [2018-10-26 22:40:41,035 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 122 transitions. [2018-10-26 22:40:41,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 22:40:41,035 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:41,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 22:40:41,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:41,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 89 states and 120 transitions. [2018-10-26 22:40:41,137 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 120 transitions. [2018-10-26 22:40:41,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 22:40:41,138 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:41,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:40:41,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:41,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 101 states and 132 transitions. [2018-10-26 22:40:41,596 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 132 transitions. [2018-10-26 22:40:41,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 22:40:41,597 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:41,702 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 22:40:42,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:42,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 112 states and 149 transitions. [2018-10-26 22:40:42,173 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 149 transitions. [2018-10-26 22:40:42,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 22:40:42,176 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:42,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:40:43,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:43,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 131 states and 171 transitions. [2018-10-26 22:40:43,276 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 171 transitions. [2018-10-26 22:40:43,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 22:40:43,276 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:43,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:40:43,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:43,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 133 states and 174 transitions. [2018-10-26 22:40:43,814 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 174 transitions. [2018-10-26 22:40:43,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-26 22:40:43,815 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:43,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:40:44,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:44,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 136 states and 179 transitions. [2018-10-26 22:40:44,479 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 179 transitions. [2018-10-26 22:40:44,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-26 22:40:44,479 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-26 22:40:44,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:44,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 139 states and 183 transitions. [2018-10-26 22:40:44,719 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 183 transitions. [2018-10-26 22:40:44,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-26 22:40:44,719 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:44,799 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-26 22:40:45,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:45,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 143 states and 189 transitions. [2018-10-26 22:40:45,431 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 189 transitions. [2018-10-26 22:40:45,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-26 22:40:45,433 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:46,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:40:48,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:48,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 169 states and 228 transitions. [2018-10-26 22:40:48,750 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 228 transitions. [2018-10-26 22:40:48,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-26 22:40:48,751 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:49,005 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:40:50,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:50,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 195 states and 267 transitions. [2018-10-26 22:40:50,275 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 267 transitions. [2018-10-26 22:40:50,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-26 22:40:50,276 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:50,859 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:40:51,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:51,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 207 states and 277 transitions. [2018-10-26 22:40:51,387 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 277 transitions. [2018-10-26 22:40:51,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-26 22:40:51,387 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:51,843 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:40:54,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:54,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 236 states and 315 transitions. [2018-10-26 22:40:54,136 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 315 transitions. [2018-10-26 22:40:54,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-26 22:40:54,138 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:54,903 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:40:58,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:40:58,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 257 states and 351 transitions. [2018-10-26 22:40:58,948 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 351 transitions. [2018-10-26 22:40:58,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-26 22:40:58,949 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:40:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:40:58,963 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-26 22:41:00,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:41:00,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 264 states and 361 transitions. [2018-10-26 22:41:00,564 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 361 transitions. [2018-10-26 22:41:00,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-26 22:41:00,564 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:41:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:41:00,693 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:41:01,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:41:01,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 276 states and 374 transitions. [2018-10-26 22:41:01,344 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 374 transitions. [2018-10-26 22:41:01,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-26 22:41:01,344 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:41:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:41:01,689 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:41:02,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:41:02,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 291 states and 395 transitions. [2018-10-26 22:41:02,625 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 395 transitions. [2018-10-26 22:41:02,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-26 22:41:02,625 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:41:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:41:02,935 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:41:03,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:41:03,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 303 states and 410 transitions. [2018-10-26 22:41:03,819 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 410 transitions. [2018-10-26 22:41:03,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-26 22:41:03,819 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:41:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:41:05,020 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:41:09,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:41:09,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 325 states and 439 transitions. [2018-10-26 22:41:09,866 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 439 transitions. [2018-10-26 22:41:09,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-26 22:41:09,867 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:41:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:41:09,901 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 22:41:10,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:41:10,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 327 states and 443 transitions. [2018-10-26 22:41:10,809 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 443 transitions. [2018-10-26 22:41:10,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-26 22:41:10,810 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:41:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:41:12,100 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:41:15,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:41:15,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 357 states and 486 transitions. [2018-10-26 22:41:15,720 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 486 transitions. [2018-10-26 22:41:15,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-26 22:41:15,720 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:41:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:41:17,137 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:41:22,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:41:22,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 390 states and 536 transitions. [2018-10-26 22:41:22,736 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 536 transitions. [2018-10-26 22:41:22,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-26 22:41:22,737 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:41:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:41:25,174 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:41:37,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:41:37,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 415 states and 581 transitions. [2018-10-26 22:41:37,984 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 581 transitions. [2018-10-26 22:41:37,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-26 22:41:37,985 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:41:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:41:38,025 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-26 22:41:39,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 22:41:39,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 423 states and 596 transitions. [2018-10-26 22:41:39,262 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 596 transitions. [2018-10-26 22:41:39,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-26 22:41:39,262 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 22:41:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 22:41:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 22:41:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 22:41:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 22:41:39,525 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 33 iterations. [2018-10-26 22:41:39,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.10 10:41:39 ImpRootNode [2018-10-26 22:41:39,601 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-26 22:41:39,602 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 22:41:39,602 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 22:41:39,602 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 22:41:39,603 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:40:39" (3/4) ... [2018-10-26 22:41:39,605 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 22:41:39,688 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fed395d8-305a-466c-9636-f77cf287ea21/bin-2019/ukojak/witness.graphml [2018-10-26 22:41:39,688 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 22:41:39,689 INFO L168 Benchmark]: Toolchain (without parser) took 62224.47 ms. Allocated memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: 843.1 MB). Free memory was 955.8 MB in the beginning and 1.5 GB in the end (delta: -506.0 MB). Peak memory consumption was 337.1 MB. Max. memory is 11.5 GB. [2018-10-26 22:41:39,690 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:41:39,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.95 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 931.6 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-10-26 22:41:39,691 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 931.6 MB in the beginning and 1.2 GB in the end (delta: -218.6 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2018-10-26 22:41:39,691 INFO L168 Benchmark]: Boogie Preprocessor took 31.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 22:41:39,692 INFO L168 Benchmark]: RCFGBuilder took 1580.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 66.8 MB). Peak memory consumption was 66.8 MB. Max. memory is 11.5 GB. [2018-10-26 22:41:39,692 INFO L168 Benchmark]: CodeCheck took 60021.28 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 692.1 MB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -402.6 MB). Peak memory consumption was 289.5 MB. Max. memory is 11.5 GB. [2018-10-26 22:41:39,693 INFO L168 Benchmark]: Witness Printer took 86.37 ms. Allocated memory is still 1.9 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2018-10-26 22:41:39,698 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 130 locations, 14 error locations. UNSAFE Result, 59.9s OverallTime, 33 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: -94850488 SDtfs, -459045464 SDslu, 1243130356 SDs, 0 SdLazy, 668255450 SolverSat, -1312146426 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7222 GetRequests, 6429 SyntacticMatches, 201 SemanticMatches, 592 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203426 ImplicationChecksByTransitivity, 56.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.4s InterpolantComputationTime, 893 NumberOfCodeBlocks, 893 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 813 ConstructedInterpolants, 0 QuantifiedInterpolants, 508433 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 32 InterpolantComputations, 14 PerfectInterpolantSequences, 66/346 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1035]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = ((void*)0) [L987] FCALL head->data = 0 [L988] SLL* item = head; [L989] int status = 0; [L991] COND TRUE __VERIFIER_nondet_int() [L993] EXPR, FCALL malloc(sizeof(SLL)) [L993] FCALL item->next = malloc(sizeof(SLL)) [L994] EXPR, FCALL item->next [L994] item = item->next [L995] FCALL item->next = ((void*)0) [L997] COND TRUE !status [L999] FCALL item->data = 1 [L1000] status = 1 [L1013] COND FALSE !(!(head != ((void*)0))) [L1013] COND FALSE !(0) [L1014] COND FALSE !(!(item != ((void*)0))) [L1014] COND FALSE !(0) [L991] COND TRUE __VERIFIER_nondet_int() [L993] EXPR, FCALL malloc(sizeof(SLL)) [L993] FCALL item->next = malloc(sizeof(SLL)) [L994] EXPR, FCALL item->next [L994] item = item->next [L995] FCALL item->next = ((void*)0) [L997] COND FALSE !(!status) [L1002] COND TRUE status == 1 [L1004] FCALL item->data = 2 [L1005] status = 2 [L1013] COND FALSE !(!(head != ((void*)0))) [L1013] COND FALSE !(0) [L1014] COND FALSE !(!(item != ((void*)0))) [L1014] COND FALSE !(0) [L991] COND TRUE __VERIFIER_nondet_int() [L993] EXPR, FCALL malloc(sizeof(SLL)) [L993] FCALL item->next = malloc(sizeof(SLL)) [L994] EXPR, FCALL item->next [L994] item = item->next [L995] FCALL item->next = ((void*)0) [L997] COND FALSE !(!status) [L1002] COND FALSE !(status == 1) [L1007] COND TRUE status >= 2 [L1009] FCALL item->data = 3 [L1010] status = 3 [L1013] COND FALSE !(!(head != ((void*)0))) [L1013] COND FALSE !(0) [L1014] COND FALSE !(!(item != ((void*)0))) [L1014] COND FALSE !(0) [L991] COND FALSE !(__VERIFIER_nondet_int()) [L1017] COND FALSE !(!(head != ((void*)0))) [L1017] COND FALSE !(0) [L1018] COND FALSE !(status == 1) [L1023] COND FALSE !(status == 2) [L1029] COND TRUE status == 3 [L1031] COND FALSE !(!(head != ((void*)0))) [L1031] COND FALSE !(0) [L1032] EXPR, FCALL head->next [L1032] COND FALSE !(!(head->next != ((void*)0))) [L1032] COND FALSE !(0) [L1033] EXPR, FCALL head->next [L1033] EXPR, FCALL head->next->next [L1033] COND FALSE !(!(head->next->next != ((void*)0))) [L1033] COND FALSE !(0) [L1034] EXPR, FCALL head->next [L1034] EXPR, FCALL head->next->next [L1034] EXPR, FCALL head->next->next->next [L1034] COND FALSE !(!(head->next->next->next != ((void*)0))) [L1034] COND FALSE !(0) [L1035] EXPR, FCALL head->next [L1035] EXPR, FCALL head->next->next [L1035] EXPR, FCALL head->next->next->next [L1035] EXPR, FCALL head->next->next->next->data [L1035] COND TRUE !(head->next->next->next->data != 3) [L1035] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 391.95 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 931.6 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 109.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 931.6 MB in the beginning and 1.2 GB in the end (delta: -218.6 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1580.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 66.8 MB). Peak memory consumption was 66.8 MB. Max. memory is 11.5 GB. * CodeCheck took 60021.28 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 692.1 MB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -402.6 MB). Peak memory consumption was 289.5 MB. Max. memory is 11.5 GB. * Witness Printer took 86.37 ms. Allocated memory is still 1.9 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...