./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/string_false-unreach-call_true-termination.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_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/string_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/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 77cd31699320cd40da64f32a92959020d19291bd ................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/string_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/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 77cd31699320cd40da64f32a92959020d19291bd ................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:06:04,358 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:06:04,359 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:06:04,369 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:06:04,369 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:06:04,370 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:06:04,371 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:06:04,372 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:06:04,374 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:06:04,375 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:06:04,376 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:06:04,376 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:06:04,377 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:06:04,378 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:06:04,379 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:06:04,380 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:06:04,381 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:06:04,383 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:06:04,384 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:06:04,386 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:06:04,387 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:06:04,388 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:06:04,390 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:06:04,390 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:06:04,390 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:06:04,391 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:06:04,392 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:06:04,392 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:06:04,393 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:06:04,399 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:06:04,399 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:06:04,400 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:06:04,400 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:06:04,400 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:06:04,401 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:06:04,401 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:06:04,401 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-26 23:06:04,413 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:06:04,413 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:06:04,414 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:06:04,414 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 23:06:04,414 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 23:06:04,415 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 23:06:04,415 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:06:04,415 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:06:04,415 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:06:04,415 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:06:04,415 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:06:04,415 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:06:04,416 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:06:04,416 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:06:04,416 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:06:04,416 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:06:04,416 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:06:04,416 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-26 23:06:04,416 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-26 23:06:04,417 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:06:04,417 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:06:04,417 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-26 23:06:04,419 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:06:04,419 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:06:04,419 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:06:04,419 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-26 23:06:04,419 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:06:04,420 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:06:04,420 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_004aae1b-bfda-4399-a943-9abe947a5c2e/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 -> 77cd31699320cd40da64f32a92959020d19291bd [2018-10-26 23:06:04,447 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:06:04,456 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:06:04,459 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:06:04,461 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:06:04,461 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:06:04,462 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/../../sv-benchmarks/c/loops/string_false-unreach-call_true-termination.i [2018-10-26 23:06:04,508 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/data/514173c3b/3775ee483a2441fa9122bccf8b6f313e/FLAG7acfb78d3 [2018-10-26 23:06:04,878 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:06:04,879 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/sv-benchmarks/c/loops/string_false-unreach-call_true-termination.i [2018-10-26 23:06:04,885 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/data/514173c3b/3775ee483a2441fa9122bccf8b6f313e/FLAG7acfb78d3 [2018-10-26 23:06:04,897 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/data/514173c3b/3775ee483a2441fa9122bccf8b6f313e [2018-10-26 23:06:04,900 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:06:04,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:06:04,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:06:04,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:06:04,906 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:06:04,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:06:04" (1/1) ... [2018-10-26 23:06:04,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6005f6f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:04, skipping insertion in model container [2018-10-26 23:06:04,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:06:04" (1/1) ... [2018-10-26 23:06:04,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:06:04,936 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:06:05,061 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:06:05,064 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:06:05,083 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:06:05,098 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:06:05,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:05 WrapperNode [2018-10-26 23:06:05,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:06:05,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:06:05,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:06:05,099 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:06:05,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:05" (1/1) ... [2018-10-26 23:06:05,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:05" (1/1) ... [2018-10-26 23:06:05,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:06:05,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:06:05,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:06:05,136 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:06:05,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:05" (1/1) ... [2018-10-26 23:06:05,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:05" (1/1) ... [2018-10-26 23:06:05,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:05" (1/1) ... [2018-10-26 23:06:05,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:05" (1/1) ... [2018-10-26 23:06:05,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:05" (1/1) ... [2018-10-26 23:06:05,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:05" (1/1) ... [2018-10-26 23:06:05,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:05" (1/1) ... [2018-10-26 23:06:05,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:06:05,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:06:05,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:06:05,169 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:06:05,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/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 23:06:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-26 23:06:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-26 23:06:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:06:05,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:06:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-26 23:06:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-26 23:06:06,189 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:06:06,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:06:06 BoogieIcfgContainer [2018-10-26 23:06:06,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:06:06,191 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-26 23:06:06,191 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-26 23:06:06,201 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-26 23:06:06,201 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:06:06" (1/1) ... [2018-10-26 23:06:06,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:06:06,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:06,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 24 states and 37 transitions. [2018-10-26 23:06:06,243 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 37 transitions. [2018-10-26 23:06:06,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-26 23:06:06,246 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:06,351 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 23:06:06,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:06,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 31 transitions. [2018-10-26 23:06:06,364 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2018-10-26 23:06:06,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-26 23:06:06,364 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:06,414 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 23:06:06,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:06,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 34 transitions. [2018-10-26 23:06:06,514 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2018-10-26 23:06:06,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 23:06:06,514 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:06,579 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 23:06:06,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:06,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2018-10-26 23:06:06,713 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2018-10-26 23:06:06,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-26 23:06:06,713 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:06,782 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-26 23:06:06,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:06,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2018-10-26 23:06:06,842 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2018-10-26 23:06:06,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-26 23:06:06,843 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:06,910 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 23:06:06,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:06,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 32 states and 41 transitions. [2018-10-26 23:06:06,962 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2018-10-26 23:06:06,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-26 23:06:06,963 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:07,046 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 23:06:07,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:07,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 34 states and 43 transitions. [2018-10-26 23:06:07,350 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2018-10-26 23:06:07,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-26 23:06:07,352 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:07,402 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 23:06:07,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:07,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 36 states and 44 transitions. [2018-10-26 23:06:07,471 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2018-10-26 23:06:07,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-26 23:06:07,472 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:07,504 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-10-26 23:06:07,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:07,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 38 states and 47 transitions. [2018-10-26 23:06:07,563 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2018-10-26 23:06:07,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-26 23:06:07,564 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:07,593 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-10-26 23:06:07,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:07,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 40 states and 49 transitions. [2018-10-26 23:06:07,639 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2018-10-26 23:06:07,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-26 23:06:07,640 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:07,672 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-10-26 23:06:07,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:07,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 42 states and 51 transitions. [2018-10-26 23:06:07,805 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2018-10-26 23:06:07,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-26 23:06:07,806 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:07,844 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-10-26 23:06:07,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:07,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 44 states and 52 transitions. [2018-10-26 23:06:07,984 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2018-10-26 23:06:07,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-26 23:06:07,985 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:06:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:06:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:06:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:06:08,147 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 12 iterations. [2018-10-26 23:06:08,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.10 11:06:08 ImpRootNode [2018-10-26 23:06:08,180 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-26 23:06:08,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:06:08,180 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:06:08,181 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:06:08,182 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:06:06" (3/4) ... [2018-10-26 23:06:08,185 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 23:06:08,185 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:06:08,186 INFO L168 Benchmark]: Toolchain (without parser) took 3285.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 953.1 MB in the beginning and 1.0 GB in the end (delta: -51.0 MB). Peak memory consumption was 115.2 MB. Max. memory is 11.5 GB. [2018-10-26 23:06:08,188 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:06:08,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.48 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 942.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:06:08,189 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.60 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:06:08,190 INFO L168 Benchmark]: Boogie Preprocessor took 32.46 ms. Allocated memory is still 1.0 GB. Free memory was 939.7 MB in the beginning and 937.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:06:08,191 INFO L168 Benchmark]: RCFGBuilder took 1022.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 937.0 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2018-10-26 23:06:08,192 INFO L168 Benchmark]: CodeCheck took 1988.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 119.2 MB). Peak memory consumption was 119.2 MB. Max. memory is 11.5 GB. [2018-10-26 23:06:08,193 INFO L168 Benchmark]: Witness Printer took 5.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:06:08,198 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, 56 locations, 1 error locations. UNSAFE Result, 1.9s OverallTime, 12 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32256 SDtfs, 4092 SDslu, 5624 SDs, 0 SdLazy, 12804 SolverSat, 6188 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1969 GetRequests, 1915 SyntacticMatches, 32 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 345 NumberOfCodeBlocks, 345 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 294 ConstructedInterpolants, 0 QuantifiedInterpolants, 11958 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 132/212 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 - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftLeft at line 55. Possible FailurePath: [L17] FCALL char string_A[5], string_B[5]; [L18] int i, j, nc_A, nc_B, found=0; [L21] i=0 [L21] COND TRUE i<5 [L22] FCALL string_A[i]=__VERIFIER_nondet_char() [L21] i++ [L21] COND TRUE i<5 [L22] FCALL string_A[i]=__VERIFIER_nondet_char() [L21] i++ [L21] COND TRUE i<5 [L22] FCALL string_A[i]=__VERIFIER_nondet_char() [L21] i++ [L21] COND TRUE i<5 [L22] FCALL string_A[i]=__VERIFIER_nondet_char() [L21] i++ [L21] COND TRUE i<5 [L22] FCALL string_A[i]=__VERIFIER_nondet_char() [L21] i++ [L21] COND FALSE !(i<5) [L23] EXPR, FCALL string_A[5 -1] [L23] COND FALSE !(!(string_A[5 -1]=='\0')) [L25] i=0 [L25] COND TRUE i<5 [L26] FCALL string_B[i]=__VERIFIER_nondet_char() [L25] i++ [L25] COND TRUE i<5 [L26] FCALL string_B[i]=__VERIFIER_nondet_char() [L25] i++ [L25] COND TRUE i<5 [L26] FCALL string_B[i]=__VERIFIER_nondet_char() [L25] i++ [L25] COND TRUE i<5 [L26] FCALL string_B[i]=__VERIFIER_nondet_char() [L25] i++ [L25] COND TRUE i<5 [L26] FCALL string_B[i]=__VERIFIER_nondet_char() [L25] i++ [L25] COND FALSE !(i<5) [L27] EXPR, FCALL string_B[5 -1] [L27] COND FALSE !(!(string_B[5 -1]=='\0')) [L29] nc_A = 0 [L30] EXPR, FCALL string_A[nc_A] [L30] COND FALSE !(string_A[nc_A]!='\0') [L33] nc_B = 0 [L34] EXPR, FCALL string_B[nc_B] [L34] COND FALSE !(string_B[nc_B]!='\0') [L37] COND FALSE !(!(nc_B >= nc_A)) [L40] EXPR j=0 [L40] i=j=0 [L41] COND FALSE !((inc_B-1)< main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/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 -> 77cd31699320cd40da64f32a92959020d19291bd [2018-10-26 23:06:10,175 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:06:10,185 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:06:10,188 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:06:10,190 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:06:10,190 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:06:10,191 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/../../sv-benchmarks/c/loops/string_false-unreach-call_true-termination.i [2018-10-26 23:06:10,233 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/data/3781d99fb/7d01be3c9afb49108d2e9eb7ea7420de/FLAGd4901f1ea [2018-10-26 23:06:10,620 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:06:10,620 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/sv-benchmarks/c/loops/string_false-unreach-call_true-termination.i [2018-10-26 23:06:10,626 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/data/3781d99fb/7d01be3c9afb49108d2e9eb7ea7420de/FLAGd4901f1ea [2018-10-26 23:06:10,638 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/data/3781d99fb/7d01be3c9afb49108d2e9eb7ea7420de [2018-10-26 23:06:10,640 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:06:10,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:06:10,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:06:10,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:06:10,646 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:06:10,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:06:10" (1/1) ... [2018-10-26 23:06:10,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9fe617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:10, skipping insertion in model container [2018-10-26 23:06:10,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:06:10" (1/1) ... [2018-10-26 23:06:10,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:06:10,678 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:06:10,836 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:06:10,839 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:06:10,863 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:06:10,881 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:06:10,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:10 WrapperNode [2018-10-26 23:06:10,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:06:10,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:06:10,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:06:10,882 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:06:10,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:10" (1/1) ... [2018-10-26 23:06:10,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:10" (1/1) ... [2018-10-26 23:06:10,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:06:10,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:06:10,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:06:10,917 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:06:10,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:10" (1/1) ... [2018-10-26 23:06:10,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:10" (1/1) ... [2018-10-26 23:06:10,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:10" (1/1) ... [2018-10-26 23:06:10,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:10" (1/1) ... [2018-10-26 23:06:10,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:10" (1/1) ... [2018-10-26 23:06:10,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:10" (1/1) ... [2018-10-26 23:06:10,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:10" (1/1) ... [2018-10-26 23:06:10,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:06:10,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:06:10,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:06:10,943 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:06:10,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:06:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/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 23:06:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-26 23:06:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2018-10-26 23:06:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:06:11,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:06:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2018-10-26 23:06:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-26 23:06:12,053 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:06:12,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:06:12 BoogieIcfgContainer [2018-10-26 23:06:12,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:06:12,054 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-26 23:06:12,054 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-26 23:06:12,061 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-26 23:06:12,062 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:06:12" (1/1) ... [2018-10-26 23:06:12,071 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:06:12,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:12,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 24 states and 37 transitions. [2018-10-26 23:06:12,103 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 37 transitions. [2018-10-26 23:06:12,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-26 23:06:12,105 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:12,154 ERROR L616 CodeCheckObserver]: First Tracecheck threw exception Indexed Sort BitVec undefined [2018-10-26 23:06:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:12,188 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:06:12,199 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 23:06:12,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:12,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 31 transitions. [2018-10-26 23:06:12,210 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2018-10-26 23:06:12,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-26 23:06:12,210 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:12,211 ERROR L616 CodeCheckObserver]: First Tracecheck threw exception Indexed Sort BitVec undefined [2018-10-26 23:06:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:12,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:06:12,288 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 23:06:12,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:12,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 34 transitions. [2018-10-26 23:06:12,335 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2018-10-26 23:06:12,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 23:06:12,335 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:12,336 ERROR L616 CodeCheckObserver]: First Tracecheck threw exception Indexed Sort BitVec undefined [2018-10-26 23:06:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:12,356 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:06:12,358 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 23:06:12,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:12,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 28 states and 37 transitions. [2018-10-26 23:06:12,484 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2018-10-26 23:06:12,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-26 23:06:12,484 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:12,485 ERROR L616 CodeCheckObserver]: First Tracecheck threw exception Indexed Sort BitVec undefined [2018-10-26 23:06:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:12,511 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:06:12,533 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 23:06:12,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:12,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2018-10-26 23:06:12,897 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2018-10-26 23:06:12,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-26 23:06:12,897 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:12,898 ERROR L616 CodeCheckObserver]: First Tracecheck threw exception Indexed Sort BitVec undefined [2018-10-26 23:06:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:12,920 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:06:12,923 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-26 23:06:12,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:12,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 32 states and 41 transitions. [2018-10-26 23:06:12,967 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2018-10-26 23:06:12,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-26 23:06:12,968 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:12,969 ERROR L616 CodeCheckObserver]: First Tracecheck threw exception Indexed Sort BitVec undefined [2018-10-26 23:06:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:12,999 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:06:13,018 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-26 23:06:13,158 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-26 23:06:13,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:13,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 34 states and 43 transitions. [2018-10-26 23:06:13,428 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2018-10-26 23:06:13,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-26 23:06:13,429 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:13,430 ERROR L616 CodeCheckObserver]: First Tracecheck threw exception Indexed Sort BitVec undefined [2018-10-26 23:06:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:13,459 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:06:13,480 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-26 23:06:13,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:13,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 36 states and 45 transitions. [2018-10-26 23:06:13,566 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2018-10-26 23:06:13,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-26 23:06:13,566 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:13,567 ERROR L616 CodeCheckObserver]: First Tracecheck threw exception Indexed Sort BitVec undefined [2018-10-26 23:06:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:13,592 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:06:13,873 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-26 23:06:13,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:13,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 43 states and 57 transitions. [2018-10-26 23:06:13,990 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2018-10-26 23:06:13,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-26 23:06:13,992 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:13,992 ERROR L616 CodeCheckObserver]: First Tracecheck threw exception Indexed Sort BitVec undefined [2018-10-26 23:06:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:14,018 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:06:14,062 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-26 23:06:14,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:14,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 49 states and 67 transitions. [2018-10-26 23:06:14,305 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 67 transitions. [2018-10-26 23:06:14,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-26 23:06:14,308 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:14,310 ERROR L616 CodeCheckObserver]: First Tracecheck threw exception Indexed Sort BitVec undefined [2018-10-26 23:06:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:14,354 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:06:14,423 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-10-26 23:06:14,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:14,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 59 states and 83 transitions. [2018-10-26 23:06:14,815 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions. [2018-10-26 23:06:14,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-26 23:06:14,816 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:14,817 ERROR L616 CodeCheckObserver]: First Tracecheck threw exception Indexed Sort BitVec undefined [2018-10-26 23:06:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:14,842 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:06:14,883 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-26 23:06:14,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:14,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 61 states and 85 transitions. [2018-10-26 23:06:14,991 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 85 transitions. [2018-10-26 23:06:14,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-26 23:06:14,992 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:14,993 ERROR L616 CodeCheckObserver]: First Tracecheck threw exception Indexed Sort BitVec undefined [2018-10-26 23:06:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:15,034 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:06:15,067 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-10-26 23:06:15,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:15,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 63 states and 87 transitions. [2018-10-26 23:06:15,167 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 87 transitions. [2018-10-26 23:06:15,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-26 23:06:15,167 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:15,168 ERROR L616 CodeCheckObserver]: First Tracecheck threw exception Indexed Sort BitVec undefined [2018-10-26 23:06:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:15,199 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:06:15,366 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-10-26 23:06:15,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:15,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 69 states and 97 transitions. [2018-10-26 23:06:15,753 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 97 transitions. [2018-10-26 23:06:15,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-26 23:06:15,754 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:15,755 ERROR L616 CodeCheckObserver]: First Tracecheck threw exception Indexed Sort BitVec undefined [2018-10-26 23:06:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:15,790 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:06:15,793 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-10-26 23:06:15,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:15,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 71 states and 100 transitions. [2018-10-26 23:06:15,935 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 100 transitions. [2018-10-26 23:06:15,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-26 23:06:15,935 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:15,936 ERROR L616 CodeCheckObserver]: First Tracecheck threw exception Indexed Sort BitVec undefined [2018-10-26 23:06:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:15,975 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:06:16,222 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-10-26 23:06:16,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:16,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 77 states and 110 transitions. [2018-10-26 23:06:16,560 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 110 transitions. [2018-10-26 23:06:16,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-26 23:06:16,560 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:16,561 ERROR L616 CodeCheckObserver]: First Tracecheck threw exception Indexed Sort BitVec undefined [2018-10-26 23:06:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:16,607 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:06:16,658 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-10-26 23:06:16,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:16,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 79 states and 112 transitions. [2018-10-26 23:06:16,793 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 112 transitions. [2018-10-26 23:06:16,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-26 23:06:16,794 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:16,795 ERROR L616 CodeCheckObserver]: First Tracecheck threw exception Indexed Sort BitVec undefined [2018-10-26 23:06:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:06:16,825 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:06:16,887 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-10-26 23:06:16,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:06:16,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 81 states and 114 transitions. [2018-10-26 23:06:16,903 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 114 transitions. [2018-10-26 23:06:16,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-26 23:06:16,903 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:06:16,904 ERROR L616 CodeCheckObserver]: First Tracecheck threw exception Indexed Sort BitVec undefined [2018-10-26 23:06:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:06:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:06:17,357 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 18 iterations. [2018-10-26 23:06:17,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.10 11:06:17 ImpRootNode [2018-10-26 23:06:17,398 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-26 23:06:17,398 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:06:17,398 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:06:17,398 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:06:17,399 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:06:12" (3/4) ... [2018-10-26 23:06:17,401 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 23:06:17,472 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_004aae1b-bfda-4399-a943-9abe947a5c2e/bin-2019/ukojak/witness.graphml [2018-10-26 23:06:17,472 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:06:17,473 INFO L168 Benchmark]: Toolchain (without parser) took 6831.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.2 MB). Free memory was 953.2 MB in the beginning and 974.8 MB in the end (delta: -21.6 MB). Peak memory consumption was 188.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:06:17,473 INFO L168 Benchmark]: CDTParser took 1.53 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:06:17,474 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.16 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-26 23:06:17,474 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.44 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:06:17,475 INFO L168 Benchmark]: Boogie Preprocessor took 25.53 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:06:17,475 INFO L168 Benchmark]: RCFGBuilder took 1110.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -178.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-10-26 23:06:17,475 INFO L168 Benchmark]: CodeCheck took 5344.22 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 49.8 MB). Free memory was 1.1 GB in the beginning and 982.2 MB in the end (delta: 133.0 MB). Peak memory consumption was 182.8 MB. Max. memory is 11.5 GB. [2018-10-26 23:06:17,476 INFO L168 Benchmark]: Witness Printer took 73.92 ms. Allocated memory is still 1.2 GB. Free memory was 982.2 MB in the beginning and 974.8 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:06:17,491 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, 56 locations, 1 error locations. UNSAFE Result, 5.2s OverallTime, 18 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2101760 SDtfs, 276756 SDslu, 331928 SDs, 0 SdLazy, 932444 SolverSat, 431432 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4239 GetRequests, 4155 SyntacticMatches, 16 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2138 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 597 NumberOfCodeBlocks, 597 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 534 ConstructedInterpolants, 0 QuantifiedInterpolants, 37804 SizeOfPredicates, 44 NumberOfNonLiveVariables, 1073 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 310/438 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: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] FCALL char string_A[5], string_B[5]; [L18] int i, j, nc_A, nc_B, found=0; [L21] i=0 [L21] COND TRUE i<5 [L22] FCALL string_A[i]=__VERIFIER_nondet_char() [L21] i++ [L21] COND TRUE i<5 [L22] FCALL string_A[i]=__VERIFIER_nondet_char() [L21] i++ [L21] COND TRUE i<5 [L22] FCALL string_A[i]=__VERIFIER_nondet_char() [L21] i++ [L21] COND TRUE i<5 [L22] FCALL string_A[i]=__VERIFIER_nondet_char() [L21] i++ [L21] COND TRUE i<5 [L22] FCALL string_A[i]=__VERIFIER_nondet_char() [L21] i++ [L21] COND FALSE !(i<5) [L23] EXPR, FCALL string_A[5 -1] [L23] COND FALSE !(!(string_A[5 -1]=='\0')) [L25] i=0 [L25] COND TRUE i<5 [L26] FCALL string_B[i]=__VERIFIER_nondet_char() [L25] i++ [L25] COND TRUE i<5 [L26] FCALL string_B[i]=__VERIFIER_nondet_char() [L25] i++ [L25] COND TRUE i<5 [L26] FCALL string_B[i]=__VERIFIER_nondet_char() [L25] i++ [L25] COND TRUE i<5 [L26] FCALL string_B[i]=__VERIFIER_nondet_char() [L25] i++ [L25] COND TRUE i<5 [L26] FCALL string_B[i]=__VERIFIER_nondet_char() [L25] i++ [L25] COND FALSE !(i<5) [L27] EXPR, FCALL string_B[5 -1] [L27] COND FALSE !(!(string_B[5 -1]=='\0')) [L29] nc_A = 0 [L30] EXPR, FCALL string_A[nc_A] [L30] COND TRUE string_A[nc_A]!='\0' [L31] nc_A++ [L30] EXPR, FCALL string_A[nc_A] [L30] COND FALSE !(string_A[nc_A]!='\0') [L33] nc_B = 0 [L34] EXPR, FCALL string_B[nc_B] [L34] COND TRUE string_B[nc_B]!='\0' [L35] nc_B++ [L34] EXPR, FCALL string_B[nc_B] [L34] COND FALSE !(string_B[nc_B]!='\0') [L37] COND FALSE !(!(nc_B >= nc_A)) [L40] EXPR j=0 [L40] i=j=0 [L41] COND TRUE (inc_B-1)<