./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem18_label48.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_b6ad6427-965a-445c-9d85-56c27ce19b97/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b6ad6427-965a-445c-9d85-56c27ce19b97/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b6ad6427-965a-445c-9d85-56c27ce19b97/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b6ad6427-965a-445c-9d85-56c27ce19b97/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem18_label48.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b6ad6427-965a-445c-9d85-56c27ce19b97/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b6ad6427-965a-445c-9d85-56c27ce19b97/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 98f6ff6884f222582263f55138801caee289daf8 ........................................................................................................................................................................................................................................................................................................ 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 17:01:44,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:01:44,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:01:44,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:01:44,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:01:44,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:01:44,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:01:44,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:01:44,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:01:44,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:01:44,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:01:44,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:01:44,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:01:44,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:01:44,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:01:44,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:01:44,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:01:44,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:01:44,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:01:44,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:01:44,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:01:44,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:01:44,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:01:44,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:01:44,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:01:44,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:01:44,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:01:44,572 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:01:44,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:01:44,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:01:44,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:01:44,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:01:44,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:01:44,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:01:44,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:01:44,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:01:44,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:01:44,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:01:44,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:01:44,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:01:44,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:01:44,590 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b6ad6427-965a-445c-9d85-56c27ce19b97/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 17:01:44,638 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:01:44,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:01:44,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:01:44,640 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:01:44,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:01:44,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:01:44,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:01:44,642 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:01:44,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:01:44,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:01:44,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:01:44,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:01:44,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:01:44,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:01:44,644 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:01:44,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:01:44,644 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:01:44,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:01:44,645 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:01:44,645 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:01:44,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:01:44,645 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:01:44,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:01:44,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:01:44,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:01:44,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:01:44,647 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:01:44,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:01:44,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:01:44,648 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_b6ad6427-965a-445c-9d85-56c27ce19b97/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b6ad6427-965a-445c-9d85-56c27ce19b97/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98f6ff6884f222582263f55138801caee289daf8 [2020-12-01 17:01:44,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:01:44,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:01:44,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:01:44,946 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:01:44,948 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:01:44,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b6ad6427-965a-445c-9d85-56c27ce19b97/bin/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem18_label48.c [2020-12-01 17:01:45,036 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b6ad6427-965a-445c-9d85-56c27ce19b97/bin/ukojak/data/509f0d4a1/68a852e7b6104368a2210a410e279a31/FLAG6f395d80d [2020-12-01 17:01:45,750 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:01:45,751 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b6ad6427-965a-445c-9d85-56c27ce19b97/sv-benchmarks/c/eca-rers2012/Problem18_label48.c [2020-12-01 17:01:45,774 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b6ad6427-965a-445c-9d85-56c27ce19b97/bin/ukojak/data/509f0d4a1/68a852e7b6104368a2210a410e279a31/FLAG6f395d80d [2020-12-01 17:01:45,884 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b6ad6427-965a-445c-9d85-56c27ce19b97/bin/ukojak/data/509f0d4a1/68a852e7b6104368a2210a410e279a31 [2020-12-01 17:01:45,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:01:45,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:01:45,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:01:45,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:01:45,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:01:45,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:01:45" (1/1) ... [2020-12-01 17:01:45,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@986b1f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:01:45, skipping insertion in model container [2020-12-01 17:01:45,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:01:45" (1/1) ... [2020-12-01 17:01:45,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:01:46,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:01:47,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:01:47,137 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:01:47,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:01:47,677 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:01:47,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:01:47 WrapperNode [2020-12-01 17:01:47,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:01:47,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:01:47,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:01:47,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:01:47,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:01:47" (1/1) ... [2020-12-01 17:01:47,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:01:47" (1/1) ... [2020-12-01 17:01:47,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:01:47,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:01:47,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:01:47,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:01:48,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:01:47" (1/1) ... [2020-12-01 17:01:48,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:01:47" (1/1) ... [2020-12-01 17:01:48,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:01:47" (1/1) ... [2020-12-01 17:01:48,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:01:47" (1/1) ... [2020-12-01 17:01:48,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:01:47" (1/1) ... [2020-12-01 17:01:48,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:01:47" (1/1) ... [2020-12-01 17:01:48,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:01:47" (1/1) ... [2020-12-01 17:01:48,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:01:48,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:01:48,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:01:48,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:01:48,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:01:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b6ad6427-965a-445c-9d85-56c27ce19b97/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 17:01:48,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 17:01:48,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:01:48,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:01:48,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:10:28,918 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:10:28,919 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-01 17:10:28,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:10:28 BoogieIcfgContainer [2020-12-01 17:10:28,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:10:28,924 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:10:28,925 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:10:28,958 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:10:28,959 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:10:28" (1/1) ... [2020-12-01 17:10:28,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:10:29,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:10:29,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-12-01 17:10:29,086 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-12-01 17:10:29,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:10:29,089 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:10:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:10:29,565 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 17:10:30,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:10:30,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-12-01 17:10:30,246 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-01 17:10:30,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:10:30,246 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:10:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:10:34,512 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:10:36,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:10:36,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2020-12-01 17:10:36,585 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2020-12-01 17:10:36,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 17:10:36,585 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:10:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:10:46,451 WARN L197 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 25 [2020-12-01 17:10:46,755 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:10:46,941 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-12-01 17:10:47,129 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 16 [2020-12-01 17:10:48,547 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 15 [2020-12-01 17:10:49,867 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 27 [2020-12-01 17:10:51,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:10:51,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 26 states and 42 transitions. [2020-12-01 17:10:51,045 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 42 transitions. [2020-12-01 17:10:51,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 17:10:51,048 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:10:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:10:59,879 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:11:01,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:11:01,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 47 transitions. [2020-12-01 17:11:01,763 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2020-12-01 17:11:01,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 17:11:01,764 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:11:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:11:19,539 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2020-12-01 17:11:20,231 WARN L197 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2020-12-01 17:11:20,734 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2020-12-01 17:11:21,018 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:11:21,706 WARN L197 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 34 [2020-12-01 17:11:21,974 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-01 17:11:22,422 WARN L197 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2020-12-01 17:11:22,791 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-01 17:11:23,372 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-12-01 17:11:24,037 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-01 17:11:24,463 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 27 [2020-12-01 17:11:25,010 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-12-01 17:11:25,461 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 25 [2020-12-01 17:11:25,771 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-01 17:11:27,227 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2020-12-01 17:11:27,636 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2020-12-01 17:11:29,059 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 18 [2020-12-01 17:11:29,259 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2020-12-01 17:11:31,433 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 25 [2020-12-01 17:11:31,812 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 18 [2020-12-01 17:11:33,056 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2020-12-01 17:11:33,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:11:33,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 40 states and 82 transitions. [2020-12-01 17:11:33,463 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 82 transitions. [2020-12-01 17:11:33,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 17:11:33,464 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:11:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:11:46,850 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:11:47,215 WARN L197 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 25 [2020-12-01 17:11:47,584 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 26 [2020-12-01 17:11:49,515 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2020-12-01 17:11:50,164 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2020-12-01 17:11:50,393 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2020-12-01 17:11:51,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:11:51,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 46 states and 96 transitions. [2020-12-01 17:11:51,720 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 96 transitions. [2020-12-01 17:11:51,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 17:11:51,722 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:05,150 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-12-01 17:12:05,539 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-01 17:12:06,024 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-12-01 17:12:08,302 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2020-12-01 17:12:09,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:09,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 43 states and 93 transitions. [2020-12-01 17:12:09,008 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 93 transitions. [2020-12-01 17:12:09,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 17:12:09,009 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2020-12-01 17:12:09,016 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 17:12:09,733 WARN L197 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 19 [2020-12-01 17:12:10,392 WARN L197 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 19 [2020-12-01 17:12:10,676 WARN L197 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 19 [2020-12-01 17:12:11,341 WARN L197 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 19 [2020-12-01 17:12:11,342 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 17:12:11,347 INFO L569 CodeCheckObserver]: Invariant with dag size 18 [2020-12-01 17:12:11,362 INFO L569 CodeCheckObserver]: Invariant with dag size 18 [2020-12-01 17:12:11,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:12:11 ImpRootNode [2020-12-01 17:12:11,369 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:12:11,370 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:12:11,371 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:12:11,372 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:12:11,373 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:10:28" (3/4) ... [2020-12-01 17:12:11,378 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 17:12:11,476 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 733 nodes and edges [2020-12-01 17:12:11,488 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2020-12-01 17:12:11,499 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 17:12:11,516 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 17:12:12,174 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b6ad6427-965a-445c-9d85-56c27ce19b97/bin/ukojak/witness.graphml [2020-12-01 17:12:12,174 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:12:12,175 INFO L168 Benchmark]: Toolchain (without parser) took 626283.90 ms. Allocated memory was 96.5 MB in the beginning and 6.8 GB in the end (delta: 6.7 GB). Free memory was 56.6 MB in the beginning and 3.3 GB in the end (delta: -3.2 GB). Peak memory consumption was 3.5 GB. Max. memory is 16.1 GB. [2020-12-01 17:12:12,176 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 96.5 MB. Free memory was 54.0 MB in the beginning and 53.9 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:12:12,178 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1786.53 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 56.4 MB in the beginning and 60.4 MB in the end (delta: -4.1 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.1 GB. [2020-12-01 17:12:12,179 INFO L168 Benchmark]: Boogie Procedure Inliner took 317.13 ms. Allocated memory is still 117.4 MB. Free memory was 60.4 MB in the beginning and 44.9 MB in the end (delta: 15.6 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. [2020-12-01 17:12:12,182 INFO L168 Benchmark]: Boogie Preprocessor took 380.26 ms. Allocated memory was 117.4 MB in the beginning and 197.1 MB in the end (delta: 79.7 MB). Free memory was 44.9 MB in the beginning and 117.5 MB in the end (delta: -72.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:12:12,182 INFO L168 Benchmark]: RCFGBuilder took 520543.28 ms. Allocated memory was 197.1 MB in the beginning and 6.8 GB in the end (delta: 6.6 GB). Free memory was 117.5 MB in the beginning and 3.6 GB in the end (delta: -3.5 GB). Peak memory consumption was 3.6 GB. Max. memory is 16.1 GB. [2020-12-01 17:12:12,183 INFO L168 Benchmark]: CodeCheck took 102445.43 ms. Allocated memory is still 6.8 GB. Free memory was 3.6 GB in the beginning and 3.4 GB in the end (delta: 216.0 MB). Peak memory consumption was 216.0 MB. Max. memory is 16.1 GB. [2020-12-01 17:12:12,183 INFO L168 Benchmark]: Witness Printer took 804.05 ms. Allocated memory is still 6.8 GB. Free memory was 3.4 GB in the beginning and 3.3 GB in the end (delta: 87.0 MB). Peak memory consumption was 83.9 MB. Max. memory is 16.1 GB. [2020-12-01 17:12:12,187 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, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 99.9s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 804 SDtfs, 1524 SDslu, 1096 SDs, 0 SdLazy, 4348 SolverSat, 616 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 47.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 941 GetRequests, 830 SyntacticMatches, 25 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3705 ImplicationChecksByTransitivity, 18.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.3s SsaConstructionTime, 34.6s SatisfiabilityAnalysisTime, 34.6s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 18448 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 36/101 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: 14]: 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: 4263]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((a3 <= 115 || !(a24 == 2)) || !(a18 == 12)) || !(a15 == 4)) || 306 < a3 - InvariantResult [Line: 4269]: Loop Invariant Derived loop invariant: (((a3 <= 115 || !(a24 == 2)) || !(a18 == 12)) || 307 <= a3) || !(a15 == 4) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 96.5 MB. Free memory was 54.0 MB in the beginning and 53.9 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1786.53 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 56.4 MB in the beginning and 60.4 MB in the end (delta: -4.1 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 317.13 ms. Allocated memory is still 117.4 MB. Free memory was 60.4 MB in the beginning and 44.9 MB in the end (delta: 15.6 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 380.26 ms. Allocated memory was 117.4 MB in the beginning and 197.1 MB in the end (delta: 79.7 MB). Free memory was 44.9 MB in the beginning and 117.5 MB in the end (delta: -72.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 520543.28 ms. Allocated memory was 197.1 MB in the beginning and 6.8 GB in the end (delta: 6.6 GB). Free memory was 117.5 MB in the beginning and 3.6 GB in the end (delta: -3.5 GB). Peak memory consumption was 3.6 GB. Max. memory is 16.1 GB. * CodeCheck took 102445.43 ms. Allocated memory is still 6.8 GB. Free memory was 3.6 GB in the beginning and 3.4 GB in the end (delta: 216.0 MB). Peak memory consumption was 216.0 MB. Max. memory is 16.1 GB. * Witness Printer took 804.05 ms. Allocated memory is still 6.8 GB. Free memory was 3.4 GB in the beginning and 3.3 GB in the end (delta: 87.0 MB). Peak memory consumption was 83.9 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process Received shutdown request...