./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-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_18fdb377-7ccf-4ecb-b582-0dbf180a8588/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_18fdb377-7ccf-4ecb-b582-0dbf180a8588/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_18fdb377-7ccf-4ecb-b582-0dbf180a8588/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_18fdb377-7ccf-4ecb-b582-0dbf180a8588/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-queue_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_18fdb377-7ccf-4ecb-b582-0dbf180a8588/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_18fdb377-7ccf-4ecb-b582-0dbf180a8588/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 39996758d4a4793ed5619e696b4574ccdffaa666 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2018-11-10 12:50:00,507 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:50:00,508 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:50:00,514 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:50:00,514 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:50:00,515 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:50:00,516 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:50:00,517 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:50:00,518 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:50:00,518 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:50:00,519 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:50:00,519 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:50:00,520 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:50:00,520 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:50:00,521 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:50:00,522 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:50:00,522 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:50:00,523 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:50:00,525 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:50:00,526 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:50:00,527 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:50:00,528 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:50:00,529 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:50:00,529 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:50:00,529 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:50:00,530 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:50:00,531 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:50:00,531 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:50:00,532 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:50:00,533 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:50:00,533 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:50:00,533 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:50:00,533 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:50:00,533 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:50:00,534 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:50:00,534 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:50:00,535 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_18fdb377-7ccf-4ecb-b582-0dbf180a8588/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 12:50:00,543 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:50:00,543 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:50:00,543 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:50:00,543 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 12:50:00,544 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 12:50:00,544 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 12:50:00,544 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:50:00,544 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:50:00,544 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:50:00,544 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:50:00,544 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:50:00,544 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:50:00,545 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:50:00,545 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:50:00,545 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:50:00,545 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:50:00,545 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:50:00,545 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 12:50:00,545 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 12:50:00,545 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:50:00,546 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:50:00,546 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 12:50:00,546 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:50:00,546 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:50:00,546 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:50:00,546 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 12:50:00,546 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:50:00,546 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:50:00,546 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_18fdb377-7ccf-4ecb-b582-0dbf180a8588/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 -> 39996758d4a4793ed5619e696b4574ccdffaa666 [2018-11-10 12:50:00,564 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:50:00,572 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:50:00,574 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:50:00,575 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:50:00,575 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:50:00,576 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_18fdb377-7ccf-4ecb-b582-0dbf180a8588/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/dll-queue_false-unreach-call_false-valid-memcleanup.i [2018-11-10 12:50:00,611 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_18fdb377-7ccf-4ecb-b582-0dbf180a8588/bin-2019/ukojak/data/4dbf89075/56dd32eabc4d495da5c207293d00f0ca/FLAG5da75da46 [2018-11-10 12:50:01,049 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:50:01,050 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_18fdb377-7ccf-4ecb-b582-0dbf180a8588/sv-benchmarks/c/forester-heap/dll-queue_false-unreach-call_false-valid-memcleanup.i [2018-11-10 12:50:01,056 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_18fdb377-7ccf-4ecb-b582-0dbf180a8588/bin-2019/ukojak/data/4dbf89075/56dd32eabc4d495da5c207293d00f0ca/FLAG5da75da46 [2018-11-10 12:50:01,065 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_18fdb377-7ccf-4ecb-b582-0dbf180a8588/bin-2019/ukojak/data/4dbf89075/56dd32eabc4d495da5c207293d00f0ca [2018-11-10 12:50:01,067 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:50:01,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:50:01,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:50:01,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:50:01,073 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:50:01,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:50:01" (1/1) ... [2018-11-10 12:50:01,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1180c501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:01, skipping insertion in model container [2018-11-10 12:50:01,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:50:01" (1/1) ... [2018-11-10 12:50:01,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:50:01,115 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:50:01,312 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:50:01,320 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:50:01,351 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:50:01,382 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:50:01,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:01 WrapperNode [2018-11-10 12:50:01,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:50:01,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:50:01,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:50:01,383 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:50:01,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:01" (1/1) ... [2018-11-10 12:50:01,441 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:01" (1/1) ... [2018-11-10 12:50:01,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:50:01,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:50:01,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:50:01,461 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:50:01,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:01" (1/1) ... [2018-11-10 12:50:01,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:01" (1/1) ... [2018-11-10 12:50:01,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:01" (1/1) ... [2018-11-10 12:50:01,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:01" (1/1) ... [2018-11-10 12:50:01,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:01" (1/1) ... [2018-11-10 12:50:01,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:01" (1/1) ... [2018-11-10 12:50:01,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:01" (1/1) ... [2018-11-10 12:50:01,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:50:01,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:50:01,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:50:01,488 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:50:01,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_18fdb377-7ccf-4ecb-b582-0dbf180a8588/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 [2018-11-10 12:50:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 12:50:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 12:50:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 12:50:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 12:50:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 12:50:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:50:01,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:50:02,089 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:50:02,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:50:02 BoogieIcfgContainer [2018-11-10 12:50:02,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:50:02,090 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 12:50:02,090 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 12:50:02,097 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 12:50:02,097 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:50:02" (1/1) ... [2018-11-10 12:50:02,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:50:02,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:02,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 84 states and 134 transitions. [2018-11-10 12:50:02,129 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 134 transitions. [2018-11-10 12:50:02,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-10 12:50:02,131 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:02,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:02,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:02,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 84 states and 129 transitions. [2018-11-10 12:50:02,211 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 129 transitions. [2018-11-10 12:50:02,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 12:50:02,212 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:02,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:02,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:02,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 88 states and 135 transitions. [2018-11-10 12:50:02,276 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 135 transitions. [2018-11-10 12:50:02,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 12:50:02,276 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:02,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:02,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:02,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 90 states and 134 transitions. [2018-11-10 12:50:02,316 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 134 transitions. [2018-11-10 12:50:02,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 12:50:02,317 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:02,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:02,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:02,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 95 states and 140 transitions. [2018-11-10 12:50:02,522 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 140 transitions. [2018-11-10 12:50:02,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 12:50:02,523 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:02,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:02,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:02,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 101 states and 147 transitions. [2018-11-10 12:50:02,682 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2018-11-10 12:50:02,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 12:50:02,685 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:02,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:02,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:02,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 102 states and 145 transitions. [2018-11-10 12:50:02,704 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2018-11-10 12:50:02,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 12:50:02,705 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:02,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:02,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:02,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 103 states and 143 transitions. [2018-11-10 12:50:02,726 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 143 transitions. [2018-11-10 12:50:02,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 12:50:02,726 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:02,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 12:50:02,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:02,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 88 states and 124 transitions. [2018-11-10 12:50:02,807 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 124 transitions. [2018-11-10 12:50:02,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 12:50:02,808 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:02,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:02,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:02,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 93 states and 127 transitions. [2018-11-10 12:50:02,879 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 127 transitions. [2018-11-10 12:50:02,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 12:50:02,879 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:02,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 12:50:02,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:02,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 91 states and 125 transitions. [2018-11-10 12:50:02,939 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 125 transitions. [2018-11-10 12:50:02,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 12:50:02,940 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:02,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:03,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:03,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 103 states and 140 transitions. [2018-11-10 12:50:03,272 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 140 transitions. [2018-11-10 12:50:03,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 12:50:03,273 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:03,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:03,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:03,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 105 states and 142 transitions. [2018-11-10 12:50:03,414 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 142 transitions. [2018-11-10 12:50:03,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 12:50:03,415 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:03,491 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 12:50:03,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:03,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 116 states and 160 transitions. [2018-11-10 12:50:03,953 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 160 transitions. [2018-11-10 12:50:03,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 12:50:03,953 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:04,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:04,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:04,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 135 states and 185 transitions. [2018-11-10 12:50:04,678 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 185 transitions. [2018-11-10 12:50:04,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 12:50:04,678 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:04,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:04,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:04,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 137 states and 187 transitions. [2018-11-10 12:50:04,800 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 187 transitions. [2018-11-10 12:50:04,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 12:50:04,800 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:04,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:04,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:05,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:05,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 139 states and 190 transitions. [2018-11-10 12:50:05,253 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 190 transitions. [2018-11-10 12:50:05,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 12:50:05,253 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:05,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:05,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:05,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 142 states and 195 transitions. [2018-11-10 12:50:05,898 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 195 transitions. [2018-11-10 12:50:05,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 12:50:05,899 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:05,927 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-10 12:50:06,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:06,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 145 states and 199 transitions. [2018-11-10 12:50:06,061 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 199 transitions. [2018-11-10 12:50:06,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-10 12:50:06,062 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:06,083 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-10 12:50:06,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:06,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 149 states and 205 transitions. [2018-11-10 12:50:06,229 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 205 transitions. [2018-11-10 12:50:06,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-10 12:50:06,229 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:06,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:08,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:08,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 175 states and 245 transitions. [2018-11-10 12:50:08,455 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 245 transitions. [2018-11-10 12:50:08,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-10 12:50:08,456 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:08,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:08,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:08,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 177 states and 247 transitions. [2018-11-10 12:50:08,858 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 247 transitions. [2018-11-10 12:50:08,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 12:50:08,858 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:09,112 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:10,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:10,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 203 states and 295 transitions. [2018-11-10 12:50:10,682 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 295 transitions. [2018-11-10 12:50:10,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 12:50:10,683 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:10,711 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:10,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:10,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 205 states and 298 transitions. [2018-11-10 12:50:10,970 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 298 transitions. [2018-11-10 12:50:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-10 12:50:10,970 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:11,058 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:11,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:11,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 217 states and 310 transitions. [2018-11-10 12:50:11,766 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 310 transitions. [2018-11-10 12:50:11,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-10 12:50:11,766 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:11,810 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:12,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:12,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 219 states and 313 transitions. [2018-11-10 12:50:12,037 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 313 transitions. [2018-11-10 12:50:12,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 12:50:12,038 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:12,447 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:14,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:14,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 248 states and 357 transitions. [2018-11-10 12:50:14,561 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 357 transitions. [2018-11-10 12:50:14,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 12:50:14,562 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:14,637 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:14,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:14,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 250 states and 360 transitions. [2018-11-10 12:50:14,845 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 360 transitions. [2018-11-10 12:50:14,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 12:50:14,846 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:15,044 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:17,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:17,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 271 states and 395 transitions. [2018-11-10 12:50:17,842 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 395 transitions. [2018-11-10 12:50:17,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-10 12:50:17,842 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:17,854 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-10 12:50:19,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:19,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 278 states and 404 transitions. [2018-11-10 12:50:19,042 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 404 transitions. [2018-11-10 12:50:19,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-10 12:50:19,042 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:19,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:19,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 290 states and 419 transitions. [2018-11-10 12:50:19,886 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 419 transitions. [2018-11-10 12:50:19,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-10 12:50:19,886 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:19,970 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:20,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:20,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 292 states and 422 transitions. [2018-11-10 12:50:20,198 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 422 transitions. [2018-11-10 12:50:20,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-10 12:50:20,199 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:20,587 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:21,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:21,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 307 states and 446 transitions. [2018-11-10 12:50:21,940 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 446 transitions. [2018-11-10 12:50:21,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-10 12:50:21,940 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:22,144 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:23,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:23,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 319 states and 465 transitions. [2018-11-10 12:50:23,207 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 465 transitions. [2018-11-10 12:50:23,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-10 12:50:23,207 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:23,323 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:24,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:24,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 331 states and 484 transitions. [2018-11-10 12:50:24,296 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 484 transitions. [2018-11-10 12:50:24,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-10 12:50:24,296 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:24,332 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:24,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:24,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 333 states and 487 transitions. [2018-11-10 12:50:24,821 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 487 transitions. [2018-11-10 12:50:24,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-10 12:50:24,821 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:24,980 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:25,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:25,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 335 states and 490 transitions. [2018-11-10 12:50:25,310 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 490 transitions. [2018-11-10 12:50:25,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-10 12:50:25,310 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:26,098 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:32,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:32,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 362 states and 534 transitions. [2018-11-10 12:50:32,627 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 534 transitions. [2018-11-10 12:50:32,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-10 12:50:32,627 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:32,820 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:33,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:33,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 364 states and 536 transitions. [2018-11-10 12:50:33,239 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 536 transitions. [2018-11-10 12:50:33,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-10 12:50:33,239 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:33,259 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 12:50:34,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:34,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 366 states and 540 transitions. [2018-11-10 12:50:34,001 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 540 transitions. [2018-11-10 12:50:34,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-10 12:50:34,002 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:34,663 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:38,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:38,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 396 states and 598 transitions. [2018-11-10 12:50:38,160 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 598 transitions. [2018-11-10 12:50:38,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-10 12:50:38,161 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:38,244 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:39,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:39,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 400 states and 605 transitions. [2018-11-10 12:50:39,100 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 605 transitions. [2018-11-10 12:50:39,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-10 12:50:39,100 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:40,086 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:46,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:46,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 433 states and 667 transitions. [2018-11-10 12:50:46,334 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 667 transitions. [2018-11-10 12:50:46,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-10 12:50:46,335 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:46,504 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:50:47,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:50:47,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 437 states and 675 transitions. [2018-11-10 12:50:47,574 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 675 transitions. [2018-11-10 12:50:47,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-10 12:50:47,574 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:50:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:50:49,103 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:51:01,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:51:01,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 470 states and 742 transitions. [2018-11-10 12:51:01,035 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 742 transitions. [2018-11-10 12:51:01,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-10 12:51:01,036 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:51:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:51:01,335 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:51:04,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:51:04,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 477 states and 754 transitions. [2018-11-10 12:51:04,191 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 754 transitions. [2018-11-10 12:51:04,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-10 12:51:04,192 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:51:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:51:04,594 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:51:08,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:51:08,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 482 states and 765 transitions. [2018-11-10 12:51:08,264 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 765 transitions. [2018-11-10 12:51:08,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-10 12:51:08,264 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:51:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:51:08,562 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:51:10,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:51:10,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 490 states and 789 transitions. [2018-11-10 12:51:10,614 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 789 transitions. [2018-11-10 12:51:10,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-10 12:51:10,614 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:51:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:51:10,777 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-10 12:51:11,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:51:11,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 233 states and 343 transitions. [2018-11-10 12:51:11,278 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 343 transitions. [2018-11-10 12:51:11,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-10 12:51:11,279 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:51:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:51:11,377 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:51:12,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:51:12,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 235 states and 348 transitions. [2018-11-10 12:51:12,019 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 348 transitions. [2018-11-10 12:51:12,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-10 12:51:12,020 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:51:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:51:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:51:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:51:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:51:12,290 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 50 iterations. [2018-11-10 12:51:12,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 12:51:12 ImpRootNode [2018-11-10 12:51:12,325 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 12:51:12,325 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:51:12,325 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:51:12,325 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:51:12,326 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:50:02" (3/4) ... [2018-11-10 12:51:12,327 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 12:51:12,378 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_18fdb377-7ccf-4ecb-b582-0dbf180a8588/bin-2019/ukojak/witness.graphml [2018-11-10 12:51:12,378 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:51:12,378 INFO L168 Benchmark]: Toolchain (without parser) took 71310.40 ms. Allocated memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: 1.0 GB). Free memory was 957.6 MB in the beginning and 1.3 GB in the end (delta: -353.4 MB). Peak memory consumption was 688.3 MB. Max. memory is 11.5 GB. [2018-11-10 12:51:12,379 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:51:12,379 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.28 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 933.5 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-11-10 12:51:12,379 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 933.5 MB in the beginning and 1.1 GB in the end (delta: -199.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-11-10 12:51:12,380 INFO L168 Benchmark]: Boogie Preprocessor took 26.73 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:51:12,380 INFO L168 Benchmark]: RCFGBuilder took 602.28 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: 73.6 MB). Peak memory consumption was 73.6 MB. Max. memory is 11.5 GB. [2018-11-10 12:51:12,380 INFO L168 Benchmark]: CodeCheck took 70234.80 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 906.0 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -277.8 MB). Peak memory consumption was 628.1 MB. Max. memory is 11.5 GB. [2018-11-10 12:51:12,381 INFO L168 Benchmark]: Witness Printer took 52.53 ms. Allocated memory is still 2.1 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2018-11-10 12:51:12,383 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, 134 locations, 14 error locations. UNSAFE Result, 70.1s OverallTime, 50 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: -938995968 SDtfs, 1609060688 SDslu, 2001843504 SDs, 0 SdLazy, -945276560 SolverSat, -1462329428 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 33.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12892 GetRequests, 11516 SyntacticMatches, 618 SemanticMatches, 758 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331642 ImplicationChecksByTransitivity, 66.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 1524 NumberOfCodeBlocks, 1524 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 1427 ConstructedInterpolants, 0 QuantifiedInterpolants, 934940 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 49 InterpolantComputations, 14 PerfectInterpolantSequences, 66/724 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: 1038]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] FCALL head->data = 0 [L990] SLL* item = head; [L991] int status = 0; [L993] COND TRUE __VERIFIER_nondet_int() [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] FCALL item->next = malloc(sizeof(SLL)) [L996] EXPR, FCALL item->next [L996] FCALL item->next->prev = item [L997] EXPR, FCALL item->next [L997] item = item->next [L998] FCALL item->next = ((void*)0) [L1000] COND TRUE !status [L1002] FCALL item->data = 1 [L1003] status = 1 [L1016] COND FALSE !(!(head != ((void*)0))) [L1016] COND FALSE !(0) [L1017] COND FALSE !(!(item != ((void*)0))) [L1017] COND FALSE !(0) [L993] COND TRUE __VERIFIER_nondet_int() [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] FCALL item->next = malloc(sizeof(SLL)) [L996] EXPR, FCALL item->next [L996] FCALL item->next->prev = item [L997] EXPR, FCALL item->next [L997] item = item->next [L998] FCALL item->next = ((void*)0) [L1000] COND FALSE !(!status) [L1005] COND TRUE status == 1 [L1007] FCALL item->data = 2 [L1008] status = 2 [L1016] COND FALSE !(!(head != ((void*)0))) [L1016] COND FALSE !(0) [L1017] COND FALSE !(!(item != ((void*)0))) [L1017] COND FALSE !(0) [L993] COND TRUE __VERIFIER_nondet_int() [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] FCALL item->next = malloc(sizeof(SLL)) [L996] EXPR, FCALL item->next [L996] FCALL item->next->prev = item [L997] EXPR, FCALL item->next [L997] item = item->next [L998] FCALL item->next = ((void*)0) [L1000] COND FALSE !(!status) [L1005] COND FALSE !(status == 1) [L1010] COND TRUE status >= 2 [L1012] FCALL item->data = 3 [L1013] status = 3 [L1016] COND FALSE !(!(head != ((void*)0))) [L1016] COND FALSE !(0) [L1017] COND FALSE !(!(item != ((void*)0))) [L1017] COND FALSE !(0) [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1020] COND FALSE !(!(head != ((void*)0))) [L1020] COND FALSE !(0) [L1021] COND FALSE !(status == 1) [L1026] COND FALSE !(status == 2) [L1032] COND TRUE status == 3 [L1034] COND FALSE !(!(head != ((void*)0))) [L1034] COND FALSE !(0) [L1035] EXPR, FCALL head->next [L1035] COND FALSE !(!(head->next != ((void*)0))) [L1035] COND FALSE !(0) [L1036] EXPR, FCALL head->next [L1036] EXPR, FCALL head->next->next [L1036] COND FALSE !(!(head->next->next != ((void*)0))) [L1036] COND FALSE !(0) [L1037] EXPR, FCALL head->next [L1037] EXPR, FCALL head->next->next [L1037] EXPR, FCALL head->next->next->next [L1037] COND FALSE !(!(head->next->next->next != ((void*)0))) [L1037] COND FALSE !(0) [L1038] EXPR, FCALL head->next [L1038] EXPR, FCALL head->next->next [L1038] EXPR, FCALL head->next->next->next [L1038] EXPR, FCALL head->next->next->next->data [L1038] COND TRUE !(head->next->next->next->data != 3) [L1038] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 313.28 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 933.5 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 77.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 933.5 MB in the beginning and 1.1 GB in the end (delta: -199.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.73 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 602.28 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: 73.6 MB). Peak memory consumption was 73.6 MB. Max. memory is 11.5 GB. * CodeCheck took 70234.80 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 906.0 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -277.8 MB). Peak memory consumption was 628.1 MB. Max. memory is 11.5 GB. * Witness Printer took 52.53 ms. Allocated memory is still 2.1 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...