./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label37.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a9fa02fe-16c2-40db-804a-0e1b51e576da/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a9fa02fe-16c2-40db-804a-0e1b51e576da/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a9fa02fe-16c2-40db-804a-0e1b51e576da/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a9fa02fe-16c2-40db-804a-0e1b51e576da/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label37.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a9fa02fe-16c2-40db-804a-0e1b51e576da/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a9fa02fe-16c2-40db-804a-0e1b51e576da/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 7aaa3098cf193eaa0809f8d5f8344e63dd7e8dda .............................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 17:52:30,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:52:30,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:52:30,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:52:30,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:52:30,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:52:30,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:52:30,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:52:30,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:52:30,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:52:30,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:52:30,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:52:30,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:52:30,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:52:30,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:52:30,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:52:30,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:52:30,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:52:30,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:52:30,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:52:30,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:52:30,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:52:30,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:52:30,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:52:30,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:52:30,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:52:30,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:52:30,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:52:30,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:52:30,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:52:30,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:52:30,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:52:30,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:52:30,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:52:30,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:52:30,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:52:30,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:52:30,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:52:30,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:52:30,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:52:30,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:52:30,540 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a9fa02fe-16c2-40db-804a-0e1b51e576da/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 17:52:30,572 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:52:30,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:52:30,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:52:30,573 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:52:30,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:52:30,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:52:30,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:52:30,575 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:52:30,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:52:30,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:52:30,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:52:30,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:52:30,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:52:30,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:52:30,576 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:52:30,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:52:30,577 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:52:30,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:52:30,577 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:52:30,578 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:52:30,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:52:30,578 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:52:30,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:52:30,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:52:30,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:52:30,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:52:30,579 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:52:30,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:52:30,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:52:30,580 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_a9fa02fe-16c2-40db-804a-0e1b51e576da/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a9fa02fe-16c2-40db-804a-0e1b51e576da/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aaa3098cf193eaa0809f8d5f8344e63dd7e8dda [2020-12-01 17:52:30,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:52:30,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:52:30,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:52:30,922 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:52:30,923 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:52:30,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a9fa02fe-16c2-40db-804a-0e1b51e576da/bin/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem02_label37.c [2020-12-01 17:52:31,014 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a9fa02fe-16c2-40db-804a-0e1b51e576da/bin/ukojak/data/52e19426c/22e6176960674eae88e475a4758a83bb/FLAG97687c4eb [2020-12-01 17:52:31,630 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:52:31,631 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a9fa02fe-16c2-40db-804a-0e1b51e576da/sv-benchmarks/c/eca-rers2012/Problem02_label37.c [2020-12-01 17:52:31,643 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a9fa02fe-16c2-40db-804a-0e1b51e576da/bin/ukojak/data/52e19426c/22e6176960674eae88e475a4758a83bb/FLAG97687c4eb [2020-12-01 17:52:31,861 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a9fa02fe-16c2-40db-804a-0e1b51e576da/bin/ukojak/data/52e19426c/22e6176960674eae88e475a4758a83bb [2020-12-01 17:52:31,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:52:31,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:52:31,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:52:31,875 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:52:31,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:52:31,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:52:31" (1/1) ... [2020-12-01 17:52:31,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f769938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:52:31, skipping insertion in model container [2020-12-01 17:52:31,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:52:31" (1/1) ... [2020-12-01 17:52:31,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:52:31,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:52:32,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:52:32,510 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:52:32,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:52:32,804 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:52:32,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:52:32 WrapperNode [2020-12-01 17:52:32,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:52:32,807 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:52:32,807 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:52:32,807 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:52:32,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:52:32" (1/1) ... [2020-12-01 17:52:32,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:52:32" (1/1) ... [2020-12-01 17:52:32,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:52:32,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:52:32,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:52:32,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:52:32,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:52:32" (1/1) ... [2020-12-01 17:52:32,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:52:32" (1/1) ... [2020-12-01 17:52:32,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:52:32" (1/1) ... [2020-12-01 17:52:33,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:52:32" (1/1) ... [2020-12-01 17:52:33,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:52:32" (1/1) ... [2020-12-01 17:52:33,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:52:32" (1/1) ... [2020-12-01 17:52:33,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:52:32" (1/1) ... [2020-12-01 17:52:33,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:52:33,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:52:33,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:52:33,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:52:33,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:52:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a9fa02fe-16c2-40db-804a-0e1b51e576da/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 [2020-12-01 17:52:33,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 17:52:33,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:52:33,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:52:33,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:52:35,843 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:52:35,843 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 17:52:35,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:52:35 BoogieIcfgContainer [2020-12-01 17:52:35,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:52:35,847 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:52:35,847 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:52:35,860 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:52:35,860 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:52:35" (1/1) ... [2020-12-01 17:52:35,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:52:35,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:52:35,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 85 states and 162 transitions. [2020-12-01 17:52:35,911 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 162 transitions. [2020-12-01 17:52:35,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-01 17:52:35,918 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:52:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:52:36,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:52:37,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:52:37,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 163 states and 250 transitions. [2020-12-01 17:52:37,161 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 250 transitions. [2020-12-01 17:52:37,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-01 17:52:37,170 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:52:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:52:37,419 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:52:38,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:52:38,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 242 states and 336 transitions. [2020-12-01 17:52:38,416 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 336 transitions. [2020-12-01 17:52:38,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-12-01 17:52:38,426 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:52:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:52:38,598 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-01 17:52:39,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:52:39,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 329 states and 427 transitions. [2020-12-01 17:52:39,197 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 427 transitions. [2020-12-01 17:52:39,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-01 17:52:39,201 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:52:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:52:39,309 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:52:39,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:52:39,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 347 states and 448 transitions. [2020-12-01 17:52:39,610 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 448 transitions. [2020-12-01 17:52:39,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-12-01 17:52:39,614 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:52:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:52:39,701 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 17:52:40,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:52:40,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 356 states and 459 transitions. [2020-12-01 17:52:40,077 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 459 transitions. [2020-12-01 17:52:40,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-12-01 17:52:40,078 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:52:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:52:40,159 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 17:52:40,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:52:40,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 374 states and 478 transitions. [2020-12-01 17:52:40,379 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 478 transitions. [2020-12-01 17:52:40,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-01 17:52:40,381 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:52:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:52:40,504 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-12-01 17:52:40,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:52:40,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 375 states and 480 transitions. [2020-12-01 17:52:40,644 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 480 transitions. [2020-12-01 17:52:40,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-12-01 17:52:40,647 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:52:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:52:40,849 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-12-01 17:52:40,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:52:40,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 376 states and 480 transitions. [2020-12-01 17:52:40,976 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 480 transitions. [2020-12-01 17:52:40,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-12-01 17:52:40,979 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:52:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:52:41,163 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-12-01 17:52:41,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:52:41,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 377 states and 480 transitions. [2020-12-01 17:52:41,191 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 480 transitions. [2020-12-01 17:52:41,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-12-01 17:52:41,193 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:52:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:52:41,331 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-01 17:52:41,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:52:41,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 438 states and 540 transitions. [2020-12-01 17:52:41,747 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 540 transitions. [2020-12-01 17:52:41,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-12-01 17:52:41,750 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:52:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:52:41,877 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-12-01 17:52:42,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:52:42,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 250 states and 320 transitions. [2020-12-01 17:52:42,367 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 320 transitions. [2020-12-01 17:52:42,367 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 17:52:42,368 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2020-12-01 17:52:42,375 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 17:52:44,977 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 17:52:44,980 INFO L569 CodeCheckObserver]: Invariant with dag size 13 [2020-12-01 17:52:44,985 INFO L569 CodeCheckObserver]: Invariant with dag size 13 [2020-12-01 17:52:44,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:52:44 ImpRootNode [2020-12-01 17:52:44,986 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:52:44,987 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:52:44,987 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:52:44,987 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:52:44,988 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:52:35" (3/4) ... [2020-12-01 17:52:44,991 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 17:52:45,027 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 114 nodes and edges [2020-12-01 17:52:45,029 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2020-12-01 17:52:45,031 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-01 17:52:45,033 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 17:52:45,264 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a9fa02fe-16c2-40db-804a-0e1b51e576da/bin/ukojak/witness.graphml [2020-12-01 17:52:45,264 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:52:45,267 INFO L168 Benchmark]: Toolchain (without parser) took 13399.82 ms. Allocated memory was 75.5 MB in the beginning and 310.4 MB in the end (delta: 234.9 MB). Free memory was 41.7 MB in the beginning and 254.0 MB in the end (delta: -212.4 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:52:45,268 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 75.5 MB. Free memory was 56.5 MB in the beginning and 56.4 MB in the end (delta: 30.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:52:45,268 INFO L168 Benchmark]: CACSL2BoogieTranslator took 931.03 ms. Allocated memory is still 92.3 MB. Free memory was 72.8 MB in the beginning and 53.6 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-01 17:52:45,269 INFO L168 Benchmark]: Boogie Procedure Inliner took 160.17 ms. Allocated memory is still 92.3 MB. Free memory was 53.6 MB in the beginning and 48.0 MB in the end (delta: 5.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 17:52:45,270 INFO L168 Benchmark]: Boogie Preprocessor took 136.94 ms. Allocated memory is still 92.3 MB. Free memory was 48.0 MB in the beginning and 43.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 17:52:45,270 INFO L168 Benchmark]: RCFGBuilder took 2740.17 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 43.8 MB in the beginning and 83.2 MB in the end (delta: -39.4 MB). Peak memory consumption was 38.3 MB. Max. memory is 16.1 GB. [2020-12-01 17:52:45,271 INFO L168 Benchmark]: CodeCheck took 9139.27 ms. Allocated memory was 119.5 MB in the beginning and 310.4 MB in the end (delta: 190.8 MB). Free memory was 83.2 MB in the beginning and 268.7 MB in the end (delta: -185.5 MB). Peak memory consumption was 143.7 MB. Max. memory is 16.1 GB. [2020-12-01 17:52:45,271 INFO L168 Benchmark]: Witness Printer took 277.75 ms. Allocated memory is still 310.4 MB. Free memory was 268.7 MB in the beginning and 254.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 17:52:45,273 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, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.4s, OverallIterations: 12, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12160 SDtfs, 442324 SDslu, 35968 SDs, 0 SdLazy, 1095308 SolverSat, 229608 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10859 GetRequests, 10408 SyntacticMatches, 413 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1418 NumberOfCodeBlocks, 1418 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1407 ConstructedInterpolants, 0 QuantifiedInterpolants, 482443 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 588/588 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: 12]: 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: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (a17 <= 8 && a28 <= 10) || (a19 == 1 && 10 < a28) - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (a17 <= 8 && a28 <= 10) || (a19 == 1 && 10 < a28) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 75.5 MB. Free memory was 56.5 MB in the beginning and 56.4 MB in the end (delta: 30.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 931.03 ms. Allocated memory is still 92.3 MB. Free memory was 72.8 MB in the beginning and 53.6 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 160.17 ms. Allocated memory is still 92.3 MB. Free memory was 53.6 MB in the beginning and 48.0 MB in the end (delta: 5.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 136.94 ms. Allocated memory is still 92.3 MB. Free memory was 48.0 MB in the beginning and 43.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2740.17 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 43.8 MB in the beginning and 83.2 MB in the end (delta: -39.4 MB). Peak memory consumption was 38.3 MB. Max. memory is 16.1 GB. * CodeCheck took 9139.27 ms. Allocated memory was 119.5 MB in the beginning and 310.4 MB in the end (delta: 190.8 MB). Free memory was 83.2 MB in the beginning and 268.7 MB in the end (delta: -185.5 MB). Peak memory consumption was 143.7 MB. Max. memory is 16.1 GB. * Witness Printer took 277.75 ms. Allocated memory is still 310.4 MB. Free memory was 268.7 MB in the beginning and 254.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...