./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/locks/test_locks_5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c5cbbc6d-b51d-409c-b47d-7bd529dd2e39/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c5cbbc6d-b51d-409c-b47d-7bd529dd2e39/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c5cbbc6d-b51d-409c-b47d-7bd529dd2e39/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c5cbbc6d-b51d-409c-b47d-7bd529dd2e39/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/locks/test_locks_5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c5cbbc6d-b51d-409c-b47d-7bd529dd2e39/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c5cbbc6d-b51d-409c-b47d-7bd529dd2e39/bin/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 4f33d015f37d4475f0ca85a8ea6311ffc3e89abb ................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:10:01,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:10:01,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:10:01,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:10:01,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:10:01,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:10:01,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:10:01,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:10:01,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:10:01,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:10:01,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:10:01,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:10:01,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:10:01,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:10:01,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:10:01,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:10:01,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:10:01,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:10:01,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:10:01,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:10:01,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:10:01,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:10:01,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:10:01,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:10:01,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:10:01,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:10:01,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:10:01,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:10:01,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:10:01,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:10:01,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:10:01,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:10:01,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:10:01,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:10:01,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:10:01,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:10:01,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:10:01,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:10:01,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:10:01,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:10:01,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:10:01,801 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c5cbbc6d-b51d-409c-b47d-7bd529dd2e39/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-26 02:10:01,824 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:10:01,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:10:01,825 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:10:01,825 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:10:01,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:10:01,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:10:01,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:10:01,826 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:10:01,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:10:01,827 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:10:01,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:10:01,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:10:01,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:10:01,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:10:01,827 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:10:01,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:10:01,828 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:10:01,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:10:01,828 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:10:01,828 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:10:01,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:10:01,839 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:10:01,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:10:01,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:10:01,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:10:01,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:10:01,840 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:10:01,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:10:01,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:10:01,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_c5cbbc6d-b51d-409c-b47d-7bd529dd2e39/bin/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 -> 4f33d015f37d4475f0ca85a8ea6311ffc3e89abb [2019-11-26 02:10:02,002 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:10:02,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:10:02,022 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:10:02,023 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:10:02,024 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:10:02,025 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c5cbbc6d-b51d-409c-b47d-7bd529dd2e39/bin/ukojak/../../sv-benchmarks/c/locks/test_locks_5.c [2019-11-26 02:10:02,078 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c5cbbc6d-b51d-409c-b47d-7bd529dd2e39/bin/ukojak/data/489d2a988/62a56e641d9a4f0a9e30e8cf5cf6563d/FLAG7ca9cfbcb [2019-11-26 02:10:02,492 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:10:02,493 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c5cbbc6d-b51d-409c-b47d-7bd529dd2e39/sv-benchmarks/c/locks/test_locks_5.c [2019-11-26 02:10:02,499 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c5cbbc6d-b51d-409c-b47d-7bd529dd2e39/bin/ukojak/data/489d2a988/62a56e641d9a4f0a9e30e8cf5cf6563d/FLAG7ca9cfbcb [2019-11-26 02:10:02,906 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c5cbbc6d-b51d-409c-b47d-7bd529dd2e39/bin/ukojak/data/489d2a988/62a56e641d9a4f0a9e30e8cf5cf6563d [2019-11-26 02:10:02,909 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:10:02,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:10:02,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:10:02,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:10:02,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:10:02,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:10:02" (1/1) ... [2019-11-26 02:10:02,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@613b6a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:02, skipping insertion in model container [2019-11-26 02:10:02,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:10:02" (1/1) ... [2019-11-26 02:10:02,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:10:02,942 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:10:03,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:10:03,090 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:10:03,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:10:03,180 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:10:03,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:03 WrapperNode [2019-11-26 02:10:03,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:10:03,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:10:03,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:10:03,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:10:03,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:03" (1/1) ... [2019-11-26 02:10:03,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:03" (1/1) ... [2019-11-26 02:10:03,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:10:03,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:10:03,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:10:03,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:10:03,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:03" (1/1) ... [2019-11-26 02:10:03,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:03" (1/1) ... [2019-11-26 02:10:03,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:03" (1/1) ... [2019-11-26 02:10:03,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:03" (1/1) ... [2019-11-26 02:10:03,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:03" (1/1) ... [2019-11-26 02:10:03,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:03" (1/1) ... [2019-11-26 02:10:03,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:03" (1/1) ... [2019-11-26 02:10:03,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:10:03,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:10:03,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:10:03,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:10:03,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c5cbbc6d-b51d-409c-b47d-7bd529dd2e39/bin/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 [2019-11-26 02:10:03,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:10:03,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:10:03,827 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:10:03,828 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-26 02:10:03,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:10:03 BoogieIcfgContainer [2019-11-26 02:10:03,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:10:03,830 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:10:03,830 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:10:03,840 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:10:03,841 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:10:03" (1/1) ... [2019-11-26 02:10:03,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:10:03,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:10:03,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 18 states and 29 transitions. [2019-11-26 02:10:03,886 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 29 transitions. [2019-11-26 02:10:03,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:10:03,890 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:10:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:04,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:04,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:10:04,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2019-11-26 02:10:04,075 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2019-11-26 02:10:04,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:10:04,076 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:10:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:04,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:04,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:10:04,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2019-11-26 02:10:04,337 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2019-11-26 02:10:04,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:10:04,338 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:10:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:04,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:04,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:10:04,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2019-11-26 02:10:04,471 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2019-11-26 02:10:04,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:10:04,472 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:10:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:04,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:04,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:10:04,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 21 states and 30 transitions. [2019-11-26 02:10:04,926 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2019-11-26 02:10:04,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:10:04,927 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:10:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:04,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:05,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:10:05,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2019-11-26 02:10:05,126 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2019-11-26 02:10:05,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:10:05,127 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:10:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:05,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:05,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:10:05,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2019-11-26 02:10:05,899 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2019-11-26 02:10:05,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:10:05,900 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:10:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:05,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:06,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:10:06,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2019-11-26 02:10:06,044 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2019-11-26 02:10:06,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:10:06,045 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:10:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:06,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:06,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:10:06,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2019-11-26 02:10:06,231 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2019-11-26 02:10:06,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:10:06,232 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:10:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:06,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:06,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:10:06,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2019-11-26 02:10:06,401 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2019-11-26 02:10:06,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:10:06,401 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:10:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:06,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:07,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:10:07,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2019-11-26 02:10:07,357 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2019-11-26 02:10:07,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:10:07,357 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:10:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:07,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:07,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:10:07,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2019-11-26 02:10:07,513 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2019-11-26 02:10:07,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:10:07,514 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:10:07,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:07,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:07,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:10:07,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2019-11-26 02:10:07,756 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2019-11-26 02:10:07,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:10:07,757 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:10:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:07,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:07,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:10:07,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2019-11-26 02:10:07,922 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2019-11-26 02:10:07,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:10:07,922 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:10:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:07,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:08,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:10:08,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 31 transitions. [2019-11-26 02:10:08,136 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2019-11-26 02:10:08,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:10:08,136 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:10:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:08,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:08,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:10:08,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2019-11-26 02:10:08,337 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2019-11-26 02:10:08,337 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:10:08,337 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 16 iterations. [2019-11-26 02:10:08,345 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-11-26 02:10:08,451 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-26 02:10:08,454 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-26 02:10:08,454 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-26 02:10:08,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:10:08 ImpRootNode [2019-11-26 02:10:08,455 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:10:08,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:10:08,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:10:08,456 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:10:08,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:10:03" (3/4) ... [2019-11-26 02:10:08,459 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:10:08,469 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-11-26 02:10:08,469 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:10:08,470 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:10:08,525 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c5cbbc6d-b51d-409c-b47d-7bd529dd2e39/bin/ukojak/witness.graphml [2019-11-26 02:10:08,525 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:10:08,527 INFO L168 Benchmark]: Toolchain (without parser) took 5617.13 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 266.9 MB). Free memory was 943.4 MB in the beginning and 1.3 GB in the end (delta: -318.3 MB). Peak memory consumption was 314.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:10:08,528 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:10:08,528 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 943.4 MB in the beginning and 1.2 GB in the end (delta: -218.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:10:08,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:10:08,529 INFO L168 Benchmark]: Boogie Preprocessor took 39.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:10:08,529 INFO L168 Benchmark]: RCFGBuilder took 575.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:10:08,530 INFO L168 Benchmark]: CodeCheck took 4625.46 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 50.3 MB). Free memory was 1.1 GB in the beginning and 845.9 MB in the end (delta: 284.7 MB). Peak memory consumption was 335.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:10:08,530 INFO L168 Benchmark]: Witness Printer took 70.13 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 50.3 MB). Free memory was 845.9 MB in the beginning and 1.3 GB in the end (delta: -415.7 MB). Peak memory consumption was 8.2 kB. Max. memory is 11.5 GB. [2019-11-26 02:10:08,533 INFO L335 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, 18 locations, 1 error locations. Result: SAFE, OverallTime: 4.4s, OverallIterations: 16, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 180224 SDtfs, 116700 SDslu, 0 SDs, 0 SdLazy, 572728 SolverSat, 212700 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1247 GetRequests, 1147 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3906 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 4775 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 91]: 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: 4]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 271.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 943.4 MB in the beginning and 1.2 GB in the end (delta: -218.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 575.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. * CodeCheck took 4625.46 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 50.3 MB). Free memory was 1.1 GB in the beginning and 845.9 MB in the end (delta: 284.7 MB). Peak memory consumption was 335.0 MB. Max. memory is 11.5 GB. * Witness Printer took 70.13 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 50.3 MB). Free memory was 845.9 MB in the beginning and 1.3 GB in the end (delta: -415.7 MB). Peak memory consumption was 8.2 kB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...