./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 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3c0ad680-a2ca-4005-8ad7-97d31777def7/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3c0ad680-a2ca-4005-8ad7-97d31777def7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3c0ad680-a2ca-4005-8ad7-97d31777def7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3c0ad680-a2ca-4005-8ad7-97d31777def7/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/locks/test_locks_5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3c0ad680-a2ca-4005-8ad7-97d31777def7/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3c0ad680-a2ca-4005-8ad7-97d31777def7/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 0.2.0-69874e2 [2020-12-01 18:00:33,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:00:33,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:00:33,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:00:33,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:00:33,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:00:33,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:00:33,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:00:33,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:00:33,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:00:33,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:00:33,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:00:33,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:00:33,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:00:33,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:00:33,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:00:33,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:00:33,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:00:33,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:00:33,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:00:33,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:00:33,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:00:33,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:00:33,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:00:33,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:00:33,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:00:33,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:00:33,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:00:33,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:00:33,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:00:33,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:00:33,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:00:33,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:00:33,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:00:33,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:00:33,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:00:33,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:00:33,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:00:33,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:00:33,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:00:33,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:00:33,642 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3c0ad680-a2ca-4005-8ad7-97d31777def7/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 18:00:33,697 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:00:33,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:00:33,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:00:33,700 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:00:33,701 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:00:33,701 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:00:33,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:00:33,702 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:00:33,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:00:33,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:00:33,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:00:33,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:00:33,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:00:33,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:00:33,705 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:00:33,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:00:33,706 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:00:33,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:00:33,706 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:00:33,707 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:00:33,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:00:33,707 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:00:33,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:00:33,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:00:33,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:00:33,708 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:00:33,709 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:00:33,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:00:33,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:00:33,710 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_3c0ad680-a2ca-4005-8ad7-97d31777def7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3c0ad680-a2ca-4005-8ad7-97d31777def7/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d28fd50bd3f7e49bee026aec860ad9015a4fdfba [2020-12-01 18:00:34,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:00:34,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:00:34,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:00:34,211 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:00:34,213 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:00:34,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3c0ad680-a2ca-4005-8ad7-97d31777def7/bin/ukojak/../../sv-benchmarks/c/locks/test_locks_5.c [2020-12-01 18:00:34,319 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c0ad680-a2ca-4005-8ad7-97d31777def7/bin/ukojak/data/c166ea95a/b4835933229d4912afce7bfd8e7993f2/FLAG11a6ec386 [2020-12-01 18:00:34,967 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:00:34,981 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3c0ad680-a2ca-4005-8ad7-97d31777def7/sv-benchmarks/c/locks/test_locks_5.c [2020-12-01 18:00:34,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c0ad680-a2ca-4005-8ad7-97d31777def7/bin/ukojak/data/c166ea95a/b4835933229d4912afce7bfd8e7993f2/FLAG11a6ec386 [2020-12-01 18:00:35,321 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3c0ad680-a2ca-4005-8ad7-97d31777def7/bin/ukojak/data/c166ea95a/b4835933229d4912afce7bfd8e7993f2 [2020-12-01 18:00:35,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:00:35,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:00:35,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:00:35,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:00:35,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:00:35,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:00:35" (1/1) ... [2020-12-01 18:00:35,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dbd0ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:35, skipping insertion in model container [2020-12-01 18:00:35,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:00:35" (1/1) ... [2020-12-01 18:00:35,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:00:35,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:00:35,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:00:35,718 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:00:35,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:00:35,777 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:00:35,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:35 WrapperNode [2020-12-01 18:00:35,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:00:35,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:00:35,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:00:35,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:00:35,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:35" (1/1) ... [2020-12-01 18:00:35,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:35" (1/1) ... [2020-12-01 18:00:35,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:00:35,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:00:35,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:00:35,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:00:35,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:35" (1/1) ... [2020-12-01 18:00:35,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:35" (1/1) ... [2020-12-01 18:00:35,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:35" (1/1) ... [2020-12-01 18:00:35,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:35" (1/1) ... [2020-12-01 18:00:35,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:35" (1/1) ... [2020-12-01 18:00:35,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:35" (1/1) ... [2020-12-01 18:00:35,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:35" (1/1) ... [2020-12-01 18:00:35,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:00:35,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:00:35,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:00:35,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:00:35,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c0ad680-a2ca-4005-8ad7-97d31777def7/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 18:00:35,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:00:35,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:00:35,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:00:35,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:00:36,498 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:00:36,499 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-01 18:00:36,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:00:36 BoogieIcfgContainer [2020-12-01 18:00:36,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:00:36,504 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:00:36,504 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:00:36,519 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:00:36,520 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:00:36" (1/1) ... [2020-12-01 18:00:36,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:00:36,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:36,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 18 states and 29 transitions. [2020-12-01 18:00:36,594 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 29 transitions. [2020-12-01 18:00:36,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:00:36,610 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:36,996 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 18:00:37,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:37,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2020-12-01 18:00:37,097 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2020-12-01 18:00:37,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 18:00:37,098 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:37,231 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 18:00:37,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:37,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2020-12-01 18:00:37,448 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2020-12-01 18:00:37,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 18:00:37,449 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:37,505 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 18:00:37,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:37,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2020-12-01 18:00:37,615 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2020-12-01 18:00:37,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 18:00:37,616 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:37,700 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 18:00:38,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:38,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 21 states and 30 transitions. [2020-12-01 18:00:38,069 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2020-12-01 18:00:38,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:00:38,070 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:38,119 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 18:00:38,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:38,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2020-12-01 18:00:38,263 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2020-12-01 18:00:38,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:00:38,264 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:38,357 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 18:00:39,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:39,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2020-12-01 18:00:39,045 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2020-12-01 18:00:39,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:00:39,046 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:39,109 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 18:00:39,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:39,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2020-12-01 18:00:39,248 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2020-12-01 18:00:39,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:00:39,249 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:39,278 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 18:00:39,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:39,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2020-12-01 18:00:39,508 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2020-12-01 18:00:39,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:00:39,510 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:39,581 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 18:00:39,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:39,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2020-12-01 18:00:39,737 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2020-12-01 18:00:39,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:00:39,738 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:39,865 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 18:00:40,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:40,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2020-12-01 18:00:40,913 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2020-12-01 18:00:40,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:00:40,913 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:40,935 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 18:00:41,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:41,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2020-12-01 18:00:41,128 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2020-12-01 18:00:41,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:00:41,129 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:41,151 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 18:00:41,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:41,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2020-12-01 18:00:41,450 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2020-12-01 18:00:41,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:00:41,452 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:41,497 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 18:00:41,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:41,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2020-12-01 18:00:41,720 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2020-12-01 18:00:41,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:00:41,721 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:41,753 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 18:00:41,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:41,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 31 transitions. [2020-12-01 18:00:41,972 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2020-12-01 18:00:41,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:00:41,972 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:42,021 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 18:00:42,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:42,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2020-12-01 18:00:42,291 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2020-12-01 18:00:42,292 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 18:00:42,292 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 16 iterations. [2020-12-01 18:00:42,301 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 18:00:42,446 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 18:00:42,451 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 18:00:42,451 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 18:00:42,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:00:42 ImpRootNode [2020-12-01 18:00:42,452 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:00:42,453 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:00:42,453 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:00:42,453 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:00:42,454 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:00:36" (3/4) ... [2020-12-01 18:00:42,457 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 18:00:42,469 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-01 18:00:42,469 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-01 18:00:42,470 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 18:00:42,470 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 18:00:42,568 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3c0ad680-a2ca-4005-8ad7-97d31777def7/bin/ukojak/witness.graphml [2020-12-01 18:00:42,573 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:00:42,575 INFO L168 Benchmark]: Toolchain (without parser) took 7244.74 ms. Allocated memory was 111.1 MB in the beginning and 163.6 MB in the end (delta: 52.4 MB). Free memory was 81.3 MB in the beginning and 63.2 MB in the end (delta: 18.1 MB). Peak memory consumption was 69.3 MB. Max. memory is 16.1 GB. [2020-12-01 18:00:42,577 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 79.7 MB. Free memory was 45.6 MB in the beginning and 45.5 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:00:42,580 INFO L168 Benchmark]: CACSL2BoogieTranslator took 442.20 ms. Allocated memory is still 111.1 MB. Free memory was 81.0 MB in the beginning and 88.4 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:00:42,580 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.50 ms. Allocated memory is still 111.1 MB. Free memory was 88.4 MB in the beginning and 86.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:00:42,581 INFO L168 Benchmark]: Boogie Preprocessor took 41.76 ms. Allocated memory is still 111.1 MB. Free memory was 86.8 MB in the beginning and 85.8 MB in the end (delta: 946.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:00:42,582 INFO L168 Benchmark]: RCFGBuilder took 615.76 ms. Allocated memory is still 111.1 MB. Free memory was 85.8 MB in the beginning and 62.5 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:00:42,582 INFO L168 Benchmark]: CodeCheck took 5948.54 ms. Allocated memory was 111.1 MB in the beginning and 163.6 MB in the end (delta: 52.4 MB). Free memory was 62.5 MB in the beginning and 66.3 MB in the end (delta: -3.9 MB). Peak memory consumption was 51.2 MB. Max. memory is 16.1 GB. [2020-12-01 18:00:42,583 INFO L168 Benchmark]: Witness Printer took 120.52 ms. Allocated memory is still 163.6 MB. Free memory was 66.3 MB in the beginning and 63.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:00:42,586 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: 5.7s, 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, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1247 GetRequests, 1147 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3906 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s 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 0.42 ms. Allocated memory is still 79.7 MB. Free memory was 45.6 MB in the beginning and 45.5 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 442.20 ms. Allocated memory is still 111.1 MB. Free memory was 81.0 MB in the beginning and 88.4 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.50 ms. Allocated memory is still 111.1 MB. Free memory was 88.4 MB in the beginning and 86.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.76 ms. Allocated memory is still 111.1 MB. Free memory was 86.8 MB in the beginning and 85.8 MB in the end (delta: 946.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 615.76 ms. Allocated memory is still 111.1 MB. Free memory was 85.8 MB in the beginning and 62.5 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * CodeCheck took 5948.54 ms. Allocated memory was 111.1 MB in the beginning and 163.6 MB in the end (delta: 52.4 MB). Free memory was 62.5 MB in the beginning and 66.3 MB in the end (delta: -3.9 MB). Peak memory consumption was 51.2 MB. Max. memory is 16.1 GB. * Witness Printer took 120.52 ms. Allocated memory is still 163.6 MB. Free memory was 66.3 MB in the beginning and 63.2 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...