./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label23.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0978a8ee-060e-4d80-a738-3f2bef5bbcad/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0978a8ee-060e-4d80-a738-3f2bef5bbcad/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0978a8ee-060e-4d80-a738-3f2bef5bbcad/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0978a8ee-060e-4d80-a738-3f2bef5bbcad/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label23.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0978a8ee-060e-4d80-a738-3f2bef5bbcad/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0978a8ee-060e-4d80-a738-3f2bef5bbcad/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 9d51f4e9dfc3a3b69ae2919d7d42cb826bffe14a ................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:11:17,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:11:17,500 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:11:17,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:11:17,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:11:17,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:11:17,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:11:17,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:11:17,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:11:17,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:11:17,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:11:17,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:11:17,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:11:17,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:11:17,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:11:17,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:11:17,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:11:17,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:11:17,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:11:17,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:11:17,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:11:17,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:11:17,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:11:17,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:11:17,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:11:17,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:11:17,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:11:17,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:11:17,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:11:17,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:11:17,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:11:17,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:11:17,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:11:17,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:11:17,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:11:17,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:11:17,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:11:17,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:11:17,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:11:17,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:11:17,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:11:17,646 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0978a8ee-060e-4d80-a738-3f2bef5bbcad/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 20:11:17,681 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:11:17,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:11:17,683 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 20:11:17,683 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 20:11:17,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:11:17,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:11:17,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:11:17,684 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:11:17,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:11:17,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:11:17,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:11:17,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:11:17,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:11:17,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:11:17,687 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:11:17,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:11:17,687 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:11:17,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:11:17,688 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 20:11:17,688 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 20:11:17,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:11:17,688 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:11:17,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 20:11:17,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:11:17,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:11:17,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:11:17,689 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 20:11:17,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:11:17,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:11:17,691 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_0978a8ee-060e-4d80-a738-3f2bef5bbcad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0978a8ee-060e-4d80-a738-3f2bef5bbcad/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d51f4e9dfc3a3b69ae2919d7d42cb826bffe14a [2020-11-29 20:11:17,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:11:18,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:11:18,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:11:18,044 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:11:18,046 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:11:18,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0978a8ee-060e-4d80-a738-3f2bef5bbcad/bin/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem16_label23.c [2020-11-29 20:11:18,141 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0978a8ee-060e-4d80-a738-3f2bef5bbcad/bin/ukojak/data/92058ff74/f6af05ec2bc747c7ad7a4a2d2c305d2a/FLAG2dc98b05d [2020-11-29 20:11:18,918 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:11:18,918 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0978a8ee-060e-4d80-a738-3f2bef5bbcad/sv-benchmarks/c/eca-rers2012/Problem16_label23.c [2020-11-29 20:11:18,936 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0978a8ee-060e-4d80-a738-3f2bef5bbcad/bin/ukojak/data/92058ff74/f6af05ec2bc747c7ad7a4a2d2c305d2a/FLAG2dc98b05d [2020-11-29 20:11:19,042 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0978a8ee-060e-4d80-a738-3f2bef5bbcad/bin/ukojak/data/92058ff74/f6af05ec2bc747c7ad7a4a2d2c305d2a [2020-11-29 20:11:19,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:11:19,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:11:19,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:11:19,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:11:19,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:11:19,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:11:19" (1/1) ... [2020-11-29 20:11:19,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@106b977b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:11:19, skipping insertion in model container [2020-11-29 20:11:19,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:11:19" (1/1) ... [2020-11-29 20:11:19,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:11:19,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:11:19,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:11:19,938 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:11:20,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:11:20,236 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:11:20,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:11:20 WrapperNode [2020-11-29 20:11:20,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:11:20,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:11:20,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:11:20,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:11:20,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:11:20" (1/1) ... [2020-11-29 20:11:20,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:11:20" (1/1) ... [2020-11-29 20:11:20,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:11:20,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:11:20,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:11:20,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:11:20,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:11:20" (1/1) ... [2020-11-29 20:11:20,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:11:20" (1/1) ... [2020-11-29 20:11:20,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:11:20" (1/1) ... [2020-11-29 20:11:20,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:11:20" (1/1) ... [2020-11-29 20:11:20,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:11:20" (1/1) ... [2020-11-29 20:11:20,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:11:20" (1/1) ... [2020-11-29 20:11:20,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:11:20" (1/1) ... [2020-11-29 20:11:20,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:11:20,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:11:20,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:11:20,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:11:20,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:11:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0978a8ee-060e-4d80-a738-3f2bef5bbcad/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 20:11:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:11:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:11:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:11:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:18:57,645 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:18:57,645 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-11-29 20:18:57,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:18:57 BoogieIcfgContainer [2020-11-29 20:18:57,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:18:57,648 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 20:18:57,648 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 20:18:57,659 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 20:18:57,660 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:18:57" (1/1) ... [2020-11-29 20:18:57,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:18:57,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:18:57,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-11-29 20:18:57,718 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-11-29 20:18:57,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 20:18:57,721 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:18:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:57,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:18:58,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:18:58,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2020-11-29 20:18:58,235 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2020-11-29 20:18:58,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 20:18:58,235 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:18:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:59,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:19:00,415 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-11-29 20:19:00,815 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-29 20:19:02,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:19:02,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 18 states and 27 transitions. [2020-11-29 20:19:02,816 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 27 transitions. [2020-11-29 20:19:02,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 20:19:02,820 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:19:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:19:05,601 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 32 [2020-11-29 20:19:05,791 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 12 [2020-11-29 20:19:05,952 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:19:06,897 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2020-11-29 20:19:07,084 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-11-29 20:19:08,044 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-11-29 20:19:14,359 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 31 [2020-11-29 20:19:14,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:19:14,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 49 transitions. [2020-11-29 20:19:14,811 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 49 transitions. [2020-11-29 20:19:14,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 20:19:14,812 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:19:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:19:20,296 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 29 [2020-11-29 20:19:20,825 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 41 [2020-11-29 20:19:21,822 WARN L193 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 46 [2020-11-29 20:19:22,103 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:19:22,364 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-11-29 20:19:22,905 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-11-29 20:19:23,444 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2020-11-29 20:19:23,671 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-11-29 20:19:24,053 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-11-29 20:19:24,696 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-11-29 20:19:24,929 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-11-29 20:19:25,309 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2020-11-29 20:19:25,574 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-11-29 20:19:25,872 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-11-29 20:19:27,214 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-11-29 20:19:27,393 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 26 [2020-11-29 20:19:27,960 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2020-11-29 20:19:28,126 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 23 [2020-11-29 20:19:29,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:19:29,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 37 states and 72 transitions. [2020-11-29 20:19:29,276 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 72 transitions. [2020-11-29 20:19:29,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 20:19:29,277 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:19:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:19:37,618 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 29 [2020-11-29 20:19:38,145 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 31 [2020-11-29 20:19:38,415 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 16 [2020-11-29 20:19:38,814 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 31 [2020-11-29 20:19:39,166 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2020-11-29 20:19:39,174 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:19:39,890 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-11-29 20:19:40,756 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-11-29 20:19:41,056 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2020-11-29 20:19:41,414 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-11-29 20:19:52,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:19:52,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 41 states and 84 transitions. [2020-11-29 20:19:52,963 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 84 transitions. [2020-11-29 20:19:52,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 20:19:52,964 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:19:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:19:56,875 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:20:00,082 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2020-11-29 20:20:00,339 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2020-11-29 20:20:00,755 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-11-29 20:20:01,105 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-29 20:20:01,835 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2020-11-29 20:20:02,023 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2020-11-29 20:20:02,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:20:02,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 48 states and 99 transitions. [2020-11-29 20:20:02,981 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 99 transitions. [2020-11-29 20:20:02,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 20:20:02,982 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:20:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:25:25,711 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-11-29 20:25:26,019 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-11-29 20:25:27,213 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 21 [2020-11-29 20:25:27,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:25:27,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 46 states and 97 transitions. [2020-11-29 20:25:27,889 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 97 transitions. [2020-11-29 20:25:27,890 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:25:27,890 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2020-11-29 20:25:27,899 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-29 20:25:28,509 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 23 [2020-11-29 20:25:29,025 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 26 [2020-11-29 20:25:29,627 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 22 [2020-11-29 20:25:30,132 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 26 [2020-11-29 20:25:30,134 INFO L569 CodeCheckObserver]: Invariant with dag size 21 [2020-11-29 20:25:30,147 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 20:25:30,147 INFO L569 CodeCheckObserver]: Invariant with dag size 23 [2020-11-29 20:25:30,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 08:25:30 ImpRootNode [2020-11-29 20:25:30,154 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 20:25:30,155 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:25:30,155 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:25:30,156 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:25:30,156 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:18:57" (3/4) ... [2020-11-29 20:25:30,160 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:25:30,203 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 371 nodes and edges [2020-11-29 20:25:30,208 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2020-11-29 20:25:30,213 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-29 20:25:30,219 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-29 20:25:30,476 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0978a8ee-060e-4d80-a738-3f2bef5bbcad/bin/ukojak/witness.graphml [2020-11-29 20:25:30,477 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:25:30,479 INFO L168 Benchmark]: Toolchain (without parser) took 851432.75 ms. Allocated memory was 132.1 MB in the beginning and 3.0 GB in the end (delta: 2.8 GB). Free memory was 100.7 MB in the beginning and 865.3 MB in the end (delta: -764.6 MB). Peak memory consumption was 2.1 GB. Max. memory is 16.1 GB. [2020-11-29 20:25:30,479 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 86.0 MB. Free memory is still 44.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:25:30,480 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1189.72 ms. Allocated memory is still 132.1 MB. Free memory was 100.7 MB in the beginning and 100.9 MB in the end (delta: -201.8 kB). Peak memory consumption was 50.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:25:30,481 INFO L168 Benchmark]: Boogie Procedure Inliner took 228.52 ms. Allocated memory is still 132.1 MB. Free memory was 100.9 MB in the beginning and 77.4 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:25:30,481 INFO L168 Benchmark]: Boogie Preprocessor took 158.38 ms. Allocated memory is still 132.1 MB. Free memory was 77.4 MB in the beginning and 62.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:25:30,482 INFO L168 Benchmark]: RCFGBuilder took 457017.67 ms. Allocated memory was 132.1 MB in the beginning and 885.0 MB in the end (delta: 752.9 MB). Free memory was 62.7 MB in the beginning and 300.2 MB in the end (delta: -237.5 MB). Peak memory consumption was 682.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:25:30,483 INFO L168 Benchmark]: CodeCheck took 392506.66 ms. Allocated memory was 885.0 MB in the beginning and 3.0 GB in the end (delta: 2.1 GB). Free memory was 300.2 MB in the beginning and 906.7 MB in the end (delta: -606.5 MB). Peak memory consumption was 1.5 GB. Max. memory is 16.1 GB. [2020-11-29 20:25:30,484 INFO L168 Benchmark]: Witness Printer took 322.00 ms. Allocated memory is still 3.0 GB. Free memory was 906.7 MB in the beginning and 865.3 MB in the end (delta: 41.4 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:25:30,486 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: 390.1s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 836 SDtfs, 1774 SDslu, 1160 SDs, 0 SdLazy, 5496 SolverSat, 886 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 91.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1128 GetRequests, 981 SyntacticMatches, 37 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6739 ImplicationChecksByTransitivity, 21.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 14.4s SatisfiabilityAnalysisTime, 333.8s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 38920 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 55/161 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: 13]: 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: 33]: Loop Invariant Derived loop invariant: ((((11 <= a16 || a16 == 10) || !(a15 == 3)) || a16 <= 8) || !(a12 == 6)) || 0 < a18 + 156 - InvariantResult [Line: 1777]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1783]: Loop Invariant Derived loop invariant: ((((((11 <= a16 || 4 <= a15) || 7 <= a12) || a15 <= 2) || a16 == 10) || 0 <= a18 + 155) || a16 <= 8) || a12 <= 5 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 86.0 MB. Free memory is still 44.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1189.72 ms. Allocated memory is still 132.1 MB. Free memory was 100.7 MB in the beginning and 100.9 MB in the end (delta: -201.8 kB). Peak memory consumption was 50.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 228.52 ms. Allocated memory is still 132.1 MB. Free memory was 100.9 MB in the beginning and 77.4 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 158.38 ms. Allocated memory is still 132.1 MB. Free memory was 77.4 MB in the beginning and 62.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 457017.67 ms. Allocated memory was 132.1 MB in the beginning and 885.0 MB in the end (delta: 752.9 MB). Free memory was 62.7 MB in the beginning and 300.2 MB in the end (delta: -237.5 MB). Peak memory consumption was 682.8 MB. Max. memory is 16.1 GB. * CodeCheck took 392506.66 ms. Allocated memory was 885.0 MB in the beginning and 3.0 GB in the end (delta: 2.1 GB). Free memory was 300.2 MB in the beginning and 906.7 MB in the end (delta: -606.5 MB). Peak memory consumption was 1.5 GB. Max. memory is 16.1 GB. * Witness Printer took 322.00 ms. Allocated memory is still 3.0 GB. Free memory was 906.7 MB in the beginning and 865.3 MB in the end (delta: 41.4 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...