./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-lit/gsv2008_true-unreach-call.c.i.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b26df6be-1449-4d40-a9c4-26873af2c3bf/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b26df6be-1449-4d40-a9c4-26873af2c3bf/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b26df6be-1449-4d40-a9c4-26873af2c3bf/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b26df6be-1449-4d40-a9c4-26873af2c3bf/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-lit/gsv2008_true-unreach-call.c.i.p+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b26df6be-1449-4d40-a9c4-26873af2c3bf/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b26df6be-1449-4d40-a9c4-26873af2c3bf/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 63f7c8c7ba82d0f06d2a9c7ce1330ebd768db6f2 .................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 16:12:35,707 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:12:35,710 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:12:35,768 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:12:35,769 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:12:35,770 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:12:35,771 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:12:35,772 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:12:35,774 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:12:35,783 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:12:35,798 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:12:35,798 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:12:35,799 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:12:35,802 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:12:35,855 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:12:35,856 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:12:35,856 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:12:35,857 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:12:35,858 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:12:35,859 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:12:35,874 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:12:35,877 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:12:35,878 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:12:35,879 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:12:35,879 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:12:35,879 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:12:35,880 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:12:35,881 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:12:35,881 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:12:35,899 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:12:35,909 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:12:35,910 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:12:35,910 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:12:35,910 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:12:35,911 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:12:35,912 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:12:35,912 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b26df6be-1449-4d40-a9c4-26873af2c3bf/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 16:12:35,980 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:12:35,981 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:12:35,982 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:12:36,001 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 16:12:36,002 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:12:36,004 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:12:36,004 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:12:36,004 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:12:36,004 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:12:36,004 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:12:36,005 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:12:36,005 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:12:36,005 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:12:36,005 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:12:36,005 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:12:36,005 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:12:36,005 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:12:36,006 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:12:36,006 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 16:12:36,006 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 16:12:36,006 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:12:36,006 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:12:36,006 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 16:12:36,006 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:12:36,006 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:12:36,007 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:12:36,007 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 16:12:36,007 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:12:36,007 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:12:36,007 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_b26df6be-1449-4d40-a9c4-26873af2c3bf/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 -> 63f7c8c7ba82d0f06d2a9c7ce1330ebd768db6f2 [2018-11-18 16:12:36,142 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:12:36,184 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:12:36,226 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:12:36,227 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:12:36,228 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:12:36,228 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b26df6be-1449-4d40-a9c4-26873af2c3bf/bin-2019/ukojak/../../sv-benchmarks/c/loop-lit/gsv2008_true-unreach-call.c.i.p+cfa-reducer.c [2018-11-18 16:12:36,469 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b26df6be-1449-4d40-a9c4-26873af2c3bf/bin-2019/ukojak/data/6f699b346/9391bd215fd7495dbbd0aadae3ebcdf7/FLAG5aa1383a4 [2018-11-18 16:12:37,694 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:12:37,695 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b26df6be-1449-4d40-a9c4-26873af2c3bf/sv-benchmarks/c/loop-lit/gsv2008_true-unreach-call.c.i.p+cfa-reducer.c [2018-11-18 16:12:37,720 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b26df6be-1449-4d40-a9c4-26873af2c3bf/bin-2019/ukojak/data/6f699b346/9391bd215fd7495dbbd0aadae3ebcdf7/FLAG5aa1383a4 [2018-11-18 16:12:37,802 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b26df6be-1449-4d40-a9c4-26873af2c3bf/bin-2019/ukojak/data/6f699b346/9391bd215fd7495dbbd0aadae3ebcdf7 [2018-11-18 16:12:37,805 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:12:37,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:12:37,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:12:37,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:12:37,825 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:12:37,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:12:37" (1/1) ... [2018-11-18 16:12:37,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2849b9e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:37, skipping insertion in model container [2018-11-18 16:12:37,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:12:37" (1/1) ... [2018-11-18 16:12:37,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:12:37,898 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:12:38,361 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:12:38,364 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:12:38,404 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:12:38,480 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:12:38,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:38 WrapperNode [2018-11-18 16:12:38,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:12:38,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:12:38,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:12:38,495 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:12:38,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:38" (1/1) ... [2018-11-18 16:12:38,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:38" (1/1) ... [2018-11-18 16:12:38,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:12:38,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:12:38,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:12:38,598 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:12:38,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:38" (1/1) ... [2018-11-18 16:12:38,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:38" (1/1) ... [2018-11-18 16:12:38,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:38" (1/1) ... [2018-11-18 16:12:38,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:38" (1/1) ... [2018-11-18 16:12:38,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:38" (1/1) ... [2018-11-18 16:12:38,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:38" (1/1) ... [2018-11-18 16:12:38,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:38" (1/1) ... [2018-11-18 16:12:38,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:12:38,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:12:38,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:12:38,666 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:12:38,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:12:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b26df6be-1449-4d40-a9c4-26873af2c3bf/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 [2018-11-18 16:12:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:12:39,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:12:39,752 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:12:39,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:12:39 BoogieIcfgContainer [2018-11-18 16:12:39,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:12:39,753 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 16:12:39,753 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 16:12:39,770 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 16:12:39,793 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:12:39" (1/1) ... [2018-11-18 16:12:39,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:12:39,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:12:39,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 9 states and 12 transitions. [2018-11-18 16:12:39,923 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 12 transitions. [2018-11-18 16:12:39,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 16:12:39,926 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:12:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:12:40,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:12:40,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:12:40,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 10 states and 14 transitions. [2018-11-18 16:12:40,496 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2018-11-18 16:12:40,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 16:12:40,497 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:12:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:12:40,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:12:42,010 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-18 16:12:42,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:12:42,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 12 states and 18 transitions. [2018-11-18 16:12:42,604 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 18 transitions. [2018-11-18 16:12:42,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 16:12:42,607 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:12:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:12:42,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:12:43,234 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 11 [2018-11-18 16:12:43,719 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2018-11-18 16:12:44,138 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-18 16:12:44,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:12:44,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 13 states and 20 transitions. [2018-11-18 16:12:44,710 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 20 transitions. [2018-11-18 16:12:44,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 16:12:44,711 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:12:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:12:45,123 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:12:46,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:12:46,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 14 states and 22 transitions. [2018-11-18 16:12:46,008 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 22 transitions. [2018-11-18 16:12:46,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 16:12:46,008 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:12:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:12:46,165 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:12:46,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:12:46,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 15 states and 24 transitions. [2018-11-18 16:12:46,285 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 24 transitions. [2018-11-18 16:12:46,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 16:12:46,286 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:12:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:12:46,549 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:12:47,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:12:47,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 16 states and 26 transitions. [2018-11-18 16:12:47,263 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 26 transitions. [2018-11-18 16:12:47,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 16:12:47,263 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:12:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:12:47,782 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:12:48,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:12:48,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 17 states and 28 transitions. [2018-11-18 16:12:48,539 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 28 transitions. [2018-11-18 16:12:48,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 16:12:48,539 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:12:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:12:48,770 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:12:49,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:12:49,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 18 states and 30 transitions. [2018-11-18 16:12:49,181 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 30 transitions. [2018-11-18 16:12:49,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 16:12:49,181 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:12:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:12:49,512 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:12:50,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:12:50,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 19 states and 32 transitions. [2018-11-18 16:12:50,150 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 32 transitions. [2018-11-18 16:12:50,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 16:12:50,150 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:12:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:12:50,572 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:12:50,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:12:50,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 20 states and 34 transitions. [2018-11-18 16:12:50,823 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 34 transitions. [2018-11-18 16:12:50,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 16:12:50,824 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:12:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:12:50,925 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:12:51,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:12:51,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 17 states and 28 transitions. [2018-11-18 16:12:51,329 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 28 transitions. [2018-11-18 16:12:51,330 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:12:51,330 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2018-11-18 16:12:51,340 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-18 16:12:51,560 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 32 [2018-11-18 16:12:51,621 INFO L579 CodeCheckObserver]: Invariant with dag size 32 [2018-11-18 16:12:51,629 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 16:12:51,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 04:12:51 ImpRootNode [2018-11-18 16:12:51,630 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 16:12:51,630 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:12:51,630 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:12:51,630 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:12:51,631 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:12:39" (3/4) ... [2018-11-18 16:12:51,634 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 16:12:51,642 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 16:12:51,643 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 16:12:51,644 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 16:12:51,678 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b26df6be-1449-4d40-a9c4-26873af2c3bf/bin-2019/ukojak/witness.graphml [2018-11-18 16:12:51,678 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:12:51,679 INFO L168 Benchmark]: Toolchain (without parser) took 13872.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.8 MB). Free memory was 959.8 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-11-18 16:12:51,680 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:12:51,680 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.35 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:12:51,680 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.75 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:12:51,681 INFO L168 Benchmark]: Boogie Preprocessor took 67.59 ms. Allocated memory is still 1.0 GB. Free memory is still 946.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:12:51,681 INFO L168 Benchmark]: RCFGBuilder took 1086.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:12:51,682 INFO L168 Benchmark]: CodeCheck took 11876.84 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -27.1 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:12:51,683 INFO L168 Benchmark]: Witness Printer took 48.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:12:51,685 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, 11 locations, 1 error locations. SAFE Result, 11.4s OverallTime, 12 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11264 SDtfs, 4096 SDslu, 4096 SDs, 0 SdLazy, 29676 SolverSat, 13304 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1157 GetRequests, 1018 SyntacticMatches, 75 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1147 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 6490 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 0/220 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: 43]: 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 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((((main__x + 71 <= 6 * main__y || main__x + 60 <= 4 * main__y) || main__x + 105 <= 10 * main__y) || main__x + 86 <= 8 * main__y) || main__x + 53 <= 2 * main__y) || main__x + 50 <= 0 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 673.35 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 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 103.75 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 67.59 ms. Allocated memory is still 1.0 GB. Free memory is still 946.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1086.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * CodeCheck took 11876.84 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -27.1 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. * Witness Printer took 48.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...