./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9bf8e91c-e1b7-4e37-bc09-aa7d0403873d/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9bf8e91c-e1b7-4e37-bc09-aa7d0403873d/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9bf8e91c-e1b7-4e37-bc09-aa7d0403873d/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9bf8e91c-e1b7-4e37-bc09-aa7d0403873d/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/locks/test_locks_5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9bf8e91c-e1b7-4e37-bc09-aa7d0403873d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9bf8e91c-e1b7-4e37-bc09-aa7d0403873d/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d28fd50bd3f7e49bee026aec860ad9015a4fdfba .......................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:40:45,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:40:45,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:40:45,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:40:45,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:40:45,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:40:45,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:40:45,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:40:45,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:40:45,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:40:45,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:40:45,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:40:45,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:40:45,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:40:45,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:40:45,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:40:45,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:40:45,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:40:45,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:40:45,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:40:45,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:40:45,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:40:45,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:40:45,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:40:45,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:40:45,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:40:45,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:40:45,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:40:45,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:40:45,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:40:45,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:40:45,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:40:45,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:40:45,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:40:45,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:40:45,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:40:45,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:40:45,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:40:45,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:40:45,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:40:45,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:40:45,881 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9bf8e91c-e1b7-4e37-bc09-aa7d0403873d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:40:45,914 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:40:45,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:40:45,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:40:45,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:40:45,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:40:45,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:40:45,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:40:45,917 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:40:45,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:40:45,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:40:45,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:40:45,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:40:45,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:40:45,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:40:45,918 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:40:45,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:40:45,919 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:40:45,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:40:45,919 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:40:45,919 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:40:45,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:40:45,920 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:40:45,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:40:45,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:40:45,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:40:45,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:40:45,921 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:40:45,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:40:45,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:40:45,921 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_9bf8e91c-e1b7-4e37-bc09-aa7d0403873d/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9bf8e91c-e1b7-4e37-bc09-aa7d0403873d/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d28fd50bd3f7e49bee026aec860ad9015a4fdfba [2020-11-28 04:40:46,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:40:46,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:40:46,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:40:46,216 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:40:46,218 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:40:46,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9bf8e91c-e1b7-4e37-bc09-aa7d0403873d/bin/ukojak/../../sv-benchmarks/c/locks/test_locks_5.c [2020-11-28 04:40:46,314 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9bf8e91c-e1b7-4e37-bc09-aa7d0403873d/bin/ukojak/data/5a9aa2209/f4f36e998b2a47a48df557c74bd6d5ac/FLAG48e5f55da [2020-11-28 04:40:46,776 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:40:46,776 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9bf8e91c-e1b7-4e37-bc09-aa7d0403873d/sv-benchmarks/c/locks/test_locks_5.c [2020-11-28 04:40:46,792 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9bf8e91c-e1b7-4e37-bc09-aa7d0403873d/bin/ukojak/data/5a9aa2209/f4f36e998b2a47a48df557c74bd6d5ac/FLAG48e5f55da [2020-11-28 04:40:46,809 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9bf8e91c-e1b7-4e37-bc09-aa7d0403873d/bin/ukojak/data/5a9aa2209/f4f36e998b2a47a48df557c74bd6d5ac [2020-11-28 04:40:46,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:40:46,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:40:46,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:40:46,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:40:46,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:40:46,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:40:46" (1/1) ... [2020-11-28 04:40:46,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c9703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:46, skipping insertion in model container [2020-11-28 04:40:46,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:40:46" (1/1) ... [2020-11-28 04:40:46,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:40:46,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:40:47,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:40:47,099 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:40:47,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:40:47,160 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:40:47,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47 WrapperNode [2020-11-28 04:40:47,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:40:47,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:40:47,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:40:47,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:40:47,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,194 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:40:47,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:40:47,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:40:47,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:40:47,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:40:47,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:40:47,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:40:47,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:40:47,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9bf8e91c-e1b7-4e37-bc09-aa7d0403873d/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 [2020-11-28 04:40:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:40:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:40:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:40:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:40:47,848 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:40:47,848 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 04:40:47,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:47 BoogieIcfgContainer [2020-11-28 04:40:47,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:40:47,851 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:40:47,851 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:40:47,861 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:40:47,861 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:40:47,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:47,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 18 states and 29 transitions. [2020-11-28 04:40:47,904 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 29 transitions. [2020-11-28 04:40:47,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:40:47,906 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:48,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:48,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:48,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2020-11-28 04:40:48,207 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2020-11-28 04:40:48,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:40:48,207 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:48,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:48,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:48,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:48,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2020-11-28 04:40:48,499 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2020-11-28 04:40:48,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:40:48,499 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:48,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:48,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:48,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2020-11-28 04:40:48,679 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2020-11-28 04:40:48,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:40:48,679 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:48,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:49,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:49,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 21 states and 30 transitions. [2020-11-28 04:40:49,209 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2020-11-28 04:40:49,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:40:49,210 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:49,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:49,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:49,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2020-11-28 04:40:49,437 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2020-11-28 04:40:49,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:40:49,437 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:49,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:50,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:50,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2020-11-28 04:40:50,215 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2020-11-28 04:40:50,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:40:50,215 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:50,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:50,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:50,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2020-11-28 04:40:50,361 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2020-11-28 04:40:50,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:40:50,362 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:50,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:50,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:50,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2020-11-28 04:40:50,600 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2020-11-28 04:40:50,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:40:50,601 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:50,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:50,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:50,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2020-11-28 04:40:50,767 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2020-11-28 04:40:50,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:40:50,767 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:50,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:51,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:51,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2020-11-28 04:40:51,759 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2020-11-28 04:40:51,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:40:51,759 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:51,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:51,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:51,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2020-11-28 04:40:51,967 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2020-11-28 04:40:51,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:40:51,967 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:51,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:52,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:52,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2020-11-28 04:40:52,264 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2020-11-28 04:40:52,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:40:52,264 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:52,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:52,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:52,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2020-11-28 04:40:52,465 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2020-11-28 04:40:52,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:40:52,466 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:52,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:52,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:52,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 31 transitions. [2020-11-28 04:40:52,678 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2020-11-28 04:40:52,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:40:52,678 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:52,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:52,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:52,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2020-11-28 04:40:52,951 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2020-11-28 04:40:52,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:40:52,951 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 16 iterations. [2020-11-28 04:40:52,958 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:40:53,086 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:40:53,090 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:40:53,090 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:40:53,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:40:53 ImpRootNode [2020-11-28 04:40:53,090 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:40:53,091 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:40:53,091 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:40:53,091 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:40:53,092 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:47" (3/4) ... [2020-11-28 04:40:53,095 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:40:53,104 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-28 04:40:53,105 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 04:40:53,105 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:40:53,105 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:40:53,195 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9bf8e91c-e1b7-4e37-bc09-aa7d0403873d/bin/ukojak/witness.graphml [2020-11-28 04:40:53,195 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:40:53,197 INFO L168 Benchmark]: Toolchain (without parser) took 6383.62 ms. Allocated memory was 90.2 MB in the beginning and 148.9 MB in the end (delta: 58.7 MB). Free memory was 57.8 MB in the beginning and 111.3 MB in the end (delta: -53.5 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:53,198 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 69.2 MB. Free memory was 31.5 MB in the beginning and 31.5 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:40:53,198 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.26 ms. Allocated memory is still 90.2 MB. Free memory was 57.6 MB in the beginning and 67.1 MB in the end (delta: -9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:53,199 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.57 ms. Allocated memory is still 90.2 MB. Free memory was 67.1 MB in the beginning and 65.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:53,199 INFO L168 Benchmark]: Boogie Preprocessor took 23.64 ms. Allocated memory is still 90.2 MB. Free memory was 65.6 MB in the beginning and 64.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:40:53,199 INFO L168 Benchmark]: RCFGBuilder took 631.20 ms. Allocated memory is still 90.2 MB. Free memory was 64.3 MB in the beginning and 41.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:53,200 INFO L168 Benchmark]: CodeCheck took 5239.45 ms. Allocated memory was 90.2 MB in the beginning and 148.9 MB in the end (delta: 58.7 MB). Free memory was 40.8 MB in the beginning and 114.4 MB in the end (delta: -73.6 MB). Peak memory consumption was 60.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:53,200 INFO L168 Benchmark]: Witness Printer took 104.26 ms. Allocated memory is still 148.9 MB. Free memory was 114.4 MB in the beginning and 111.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:53,203 INFO L339 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. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.0s, OverallIterations: 16, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 180224 SDtfs, 116700 SDslu, 0 SDs, 0 SdLazy, 572728 SolverSat, 212700 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1247 GetRequests, 1147 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3906 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s 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: 3]: 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: 7]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 69.2 MB. Free memory was 31.5 MB in the beginning and 31.5 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 344.26 ms. Allocated memory is still 90.2 MB. Free memory was 57.6 MB in the beginning and 67.1 MB in the end (delta: -9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.57 ms. Allocated memory is still 90.2 MB. Free memory was 67.1 MB in the beginning and 65.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.64 ms. Allocated memory is still 90.2 MB. Free memory was 65.6 MB in the beginning and 64.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 631.20 ms. Allocated memory is still 90.2 MB. Free memory was 64.3 MB in the beginning and 41.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * CodeCheck took 5239.45 ms. Allocated memory was 90.2 MB in the beginning and 148.9 MB in the end (delta: 58.7 MB). Free memory was 40.8 MB in the beginning and 114.4 MB in the end (delta: -73.6 MB). Peak memory consumption was 60.0 MB. Max. memory is 16.1 GB. * Witness Printer took 104.26 ms. Allocated memory is still 148.9 MB. Free memory was 114.4 MB in the beginning and 111.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...