./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive-simple/id_i15_o15_true-unreach-call_true-termination.c --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_a200df8c-c2b6-4e7b-b74f-28ebfeac4776/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a200df8c-c2b6-4e7b-b74f-28ebfeac4776/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a200df8c-c2b6-4e7b-b74f-28ebfeac4776/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a200df8c-c2b6-4e7b-b74f-28ebfeac4776/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i15_o15_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a200df8c-c2b6-4e7b-b74f-28ebfeac4776/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a200df8c-c2b6-4e7b-b74f-28ebfeac4776/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 946ca263ceeb3f3c46f4e6e15a44f3d7052d43ca ............................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 05:31:11,099 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:31:11,100 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:31:11,108 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:31:11,108 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:31:11,109 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:31:11,110 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:31:11,111 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:31:11,112 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:31:11,113 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:31:11,113 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:31:11,113 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:31:11,114 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:31:11,115 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:31:11,115 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:31:11,116 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:31:11,116 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:31:11,118 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:31:11,119 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:31:11,120 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:31:11,121 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:31:11,122 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:31:11,124 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:31:11,124 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:31:11,124 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:31:11,125 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:31:11,125 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:31:11,126 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:31:11,126 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:31:11,128 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:31:11,128 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:31:11,128 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:31:11,128 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:31:11,129 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:31:11,129 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:31:11,130 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:31:11,130 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a200df8c-c2b6-4e7b-b74f-28ebfeac4776/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 05:31:11,140 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:31:11,140 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:31:11,141 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:31:11,141 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 05:31:11,142 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 05:31:11,142 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 05:31:11,142 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:31:11,142 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:31:11,142 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:31:11,142 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:31:11,143 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:31:11,143 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:31:11,143 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:31:11,143 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:31:11,144 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:31:11,144 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:31:11,144 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:31:11,144 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 05:31:11,144 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 05:31:11,144 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:31:11,145 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:31:11,145 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 05:31:11,145 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:31:11,145 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:31:11,145 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:31:11,145 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 05:31:11,145 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:31:11,146 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:31:11,146 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_a200df8c-c2b6-4e7b-b74f-28ebfeac4776/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 -> 946ca263ceeb3f3c46f4e6e15a44f3d7052d43ca [2018-11-10 05:31:11,169 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:31:11,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:31:11,180 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:31:11,181 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:31:11,181 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:31:11,182 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a200df8c-c2b6-4e7b-b74f-28ebfeac4776/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/id_i15_o15_true-unreach-call_true-termination.c [2018-11-10 05:31:11,222 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a200df8c-c2b6-4e7b-b74f-28ebfeac4776/bin-2019/ukojak/data/0e6e81581/3bde8e381fdd4932b1398f544c718478/FLAGabee31f58 [2018-11-10 05:31:11,624 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:31:11,625 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a200df8c-c2b6-4e7b-b74f-28ebfeac4776/sv-benchmarks/c/recursive-simple/id_i15_o15_true-unreach-call_true-termination.c [2018-11-10 05:31:11,629 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a200df8c-c2b6-4e7b-b74f-28ebfeac4776/bin-2019/ukojak/data/0e6e81581/3bde8e381fdd4932b1398f544c718478/FLAGabee31f58 [2018-11-10 05:31:11,637 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a200df8c-c2b6-4e7b-b74f-28ebfeac4776/bin-2019/ukojak/data/0e6e81581/3bde8e381fdd4932b1398f544c718478 [2018-11-10 05:31:11,639 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:31:11,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:31:11,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:31:11,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:31:11,644 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:31:11,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:31:11" (1/1) ... [2018-11-10 05:31:11,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b8b0baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:11, skipping insertion in model container [2018-11-10 05:31:11,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:31:11" (1/1) ... [2018-11-10 05:31:11,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:31:11,667 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:31:11,761 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:31:11,763 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:31:11,771 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:31:11,779 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:31:11,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:11 WrapperNode [2018-11-10 05:31:11,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:31:11,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:31:11,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:31:11,780 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:31:11,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:11" (1/1) ... [2018-11-10 05:31:11,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:11" (1/1) ... [2018-11-10 05:31:11,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:31:11,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:31:11,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:31:11,798 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:31:11,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:11" (1/1) ... [2018-11-10 05:31:11,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:11" (1/1) ... [2018-11-10 05:31:11,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:11" (1/1) ... [2018-11-10 05:31:11,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:11" (1/1) ... [2018-11-10 05:31:11,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:11" (1/1) ... [2018-11-10 05:31:11,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:11" (1/1) ... [2018-11-10 05:31:11,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:11" (1/1) ... [2018-11-10 05:31:11,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:31:11,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:31:11,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:31:11,807 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:31:11,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:31:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a200df8c-c2b6-4e7b-b74f-28ebfeac4776/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 05:31:11,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:31:11,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:31:11,874 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-11-10 05:31:11,874 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-11-10 05:31:11,965 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:31:11,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:31:11 BoogieIcfgContainer [2018-11-10 05:31:11,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:31:11,966 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 05:31:11,966 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 05:31:11,974 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 05:31:11,974 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:31:11" (1/1) ... [2018-11-10 05:31:11,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:31:11,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:31:12,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-11-10 05:31:12,003 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-11-10 05:31:12,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 05:31:12,006 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:31:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:12,114 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 05:31:12,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:31:12,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2018-11-10 05:31:12,174 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-10 05:31:12,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 05:31:12,174 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:31:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:12,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 05:31:12,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:31:12,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 23 transitions. [2018-11-10 05:31:12,327 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2018-11-10 05:31:12,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 05:31:12,328 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:31:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:12,368 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 05:31:12,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:31:12,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 29 transitions. [2018-11-10 05:31:12,442 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2018-11-10 05:31:12,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 05:31:12,443 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:31:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:12,481 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-10 05:31:12,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:31:12,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 25 states and 36 transitions. [2018-11-10 05:31:12,586 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2018-11-10 05:31:12,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 05:31:12,587 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:31:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:12,627 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-10 05:31:12,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:31:12,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 28 states and 44 transitions. [2018-11-10 05:31:12,710 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2018-11-10 05:31:12,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-10 05:31:12,710 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:31:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:12,771 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-11-10 05:31:12,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:31:12,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 31 states and 53 transitions. [2018-11-10 05:31:12,857 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 53 transitions. [2018-11-10 05:31:12,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-10 05:31:12,858 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:31:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:12,929 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-11-10 05:31:13,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:31:13,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 34 states and 63 transitions. [2018-11-10 05:31:13,034 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 63 transitions. [2018-11-10 05:31:13,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-10 05:31:13,035 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:31:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:13,085 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-11-10 05:31:13,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:31:13,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 37 states and 74 transitions. [2018-11-10 05:31:13,186 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 74 transitions. [2018-11-10 05:31:13,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-10 05:31:13,187 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:31:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:13,258 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-11-10 05:31:13,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:31:13,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 40 states and 86 transitions. [2018-11-10 05:31:13,374 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 86 transitions. [2018-11-10 05:31:13,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-10 05:31:13,375 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:31:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:13,441 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-11-10 05:31:13,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:31:13,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 43 states and 99 transitions. [2018-11-10 05:31:13,541 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 99 transitions. [2018-11-10 05:31:13,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-10 05:31:13,543 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:31:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:13,611 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-10 05:31:13,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:31:13,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 46 states and 113 transitions. [2018-11-10 05:31:13,725 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 113 transitions. [2018-11-10 05:31:13,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-11-10 05:31:13,726 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:31:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:13,788 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2018-11-10 05:31:13,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:31:13,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 49 states and 128 transitions. [2018-11-10 05:31:13,898 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 128 transitions. [2018-11-10 05:31:13,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-11-10 05:31:13,900 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:31:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:13,940 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2018-11-10 05:31:14,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:31:14,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 52 states and 144 transitions. [2018-11-10 05:31:14,057 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 144 transitions. [2018-11-10 05:31:14,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-11-10 05:31:14,058 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:31:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:14,119 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2018-11-10 05:31:14,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:31:14,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 55 states and 161 transitions. [2018-11-10 05:31:14,233 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 161 transitions. [2018-11-10 05:31:14,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-10 05:31:14,234 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:31:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:14,292 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2018-11-10 05:31:14,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:31:14,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 58 states and 179 transitions. [2018-11-10 05:31:14,415 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 179 transitions. [2018-11-10 05:31:14,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-10 05:31:14,416 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:31:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:15,582 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2018-11-10 05:31:23,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:31:23,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 107 states and 469 transitions. [2018-11-10 05:31:23,057 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 469 transitions. [2018-11-10 05:31:23,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-11-10 05:31:23,058 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:31:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:31:23,516 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 392 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2018-11-10 05:31:25,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:31:25,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 59 states and 61 transitions. [2018-11-10 05:31:25,753 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2018-11-10 05:31:25,753 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 05:31:25,753 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 18 iterations. [2018-11-10 05:31:25,759 INFO L778 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-10 05:31:25,952 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2018-11-10 05:31:26,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 05:31:26 ImpRootNode [2018-11-10 05:31:26,030 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 05:31:26,030 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:31:26,030 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:31:26,030 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:31:26,030 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:31:11" (3/4) ... [2018-11-10 05:31:26,033 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 05:31:26,037 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2018-11-10 05:31:26,040 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-10 05:31:26,040 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 05:31:26,040 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 05:31:26,067 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a200df8c-c2b6-4e7b-b74f-28ebfeac4776/bin-2019/ukojak/witness.graphml [2018-11-10 05:31:26,067 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:31:26,067 INFO L168 Benchmark]: Toolchain (without parser) took 14427.74 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 436.2 MB). Free memory was 960.2 MB in the beginning and 870.1 MB in the end (delta: 90.2 MB). Peak memory consumption was 526.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:31:26,068 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:31:26,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.00 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:31:26,068 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.45 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:31:26,068 INFO L168 Benchmark]: Boogie Preprocessor took 8.48 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:31:26,069 INFO L168 Benchmark]: RCFGBuilder took 159.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-10 05:31:26,069 INFO L168 Benchmark]: CodeCheck took 14063.73 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 300.4 MB). Free memory was 1.1 GB in the beginning and 870.8 MB in the end (delta: 249.2 MB). Peak memory consumption was 549.6 MB. Max. memory is 11.5 GB. [2018-11-10 05:31:26,069 INFO L168 Benchmark]: Witness Printer took 37.19 ms. Allocated memory is still 1.5 GB. Free memory was 870.8 MB in the beginning and 870.1 MB in the end (delta: 724.6 kB). Peak memory consumption was 724.6 kB. Max. memory is 11.5 GB. [2018-11-10 05:31:26,071 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 2 procedures, 16 locations, 1 error locations. SAFE Result, 13.7s OverallTime, 18 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 917512 SDtfs, 852076 SDslu, 1376464 SDs, 0 SdLazy, 3938262 SolverSat, 788534 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15716 GetRequests, 14839 SyntacticMatches, 597 SemanticMatches, 280 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30959 ImplicationChecksByTransitivity, 10.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 969 NumberOfCodeBlocks, 969 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 952 ConstructedInterpolants, 0 QuantifiedInterpolants, 189584 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 2 PerfectInterpolantSequences, 2704/4624 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 - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.00 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.45 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 8.48 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 159.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * CodeCheck took 14063.73 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 300.4 MB). Free memory was 1.1 GB in the beginning and 870.8 MB in the end (delta: 249.2 MB). Peak memory consumption was 549.6 MB. Max. memory is 11.5 GB. * Witness Printer took 37.19 ms. Allocated memory is still 1.5 GB. Free memory was 870.8 MB in the beginning and 870.1 MB in the end (delta: 724.6 kB). Peak memory consumption was 724.6 kB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...