./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label05.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_0a34ab5e-ce9c-4c55-9c85-93abf582ce43/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0a34ab5e-ce9c-4c55-9c85-93abf582ce43/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0a34ab5e-ce9c-4c55-9c85-93abf582ce43/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0a34ab5e-ce9c-4c55-9c85-93abf582ce43/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label05.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0a34ab5e-ce9c-4c55-9c85-93abf582ce43/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0a34ab5e-ce9c-4c55-9c85-93abf582ce43/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 9a2e0f33ac5b7c0fe5cd7ffdd1eac9c075d8b0ce .............................................................................................................................................................................................................................................................................................. 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 16:30:36,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:30:36,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:30:36,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:30:36,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:30:36,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:30:36,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:30:36,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:30:36,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:30:36,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:30:36,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:30:36,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:30:36,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:30:36,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:30:36,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:30:36,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:30:36,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:30:36,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:30:36,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:30:36,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:30:36,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:30:36,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:30:36,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:30:36,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:30:36,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:30:36,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:30:36,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:30:36,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:30:36,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:30:36,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:30:36,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:30:36,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:30:36,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:30:36,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:30:36,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:30:36,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:30:36,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:30:36,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:30:36,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:30:36,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:30:36,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:30:36,820 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0a34ab5e-ce9c-4c55-9c85-93abf582ce43/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:30:36,863 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:30:36,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:30:36,865 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:30:36,865 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:30:36,866 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:30:36,866 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:30:36,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:30:36,867 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:30:36,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:30:36,867 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:30:36,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:30:36,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:30:36,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:30:36,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:30:36,869 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:30:36,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:30:36,870 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:30:36,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:30:36,870 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:30:36,871 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:30:36,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:30:36,871 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:30:36,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:30:36,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:30:36,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:30:36,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:30:36,872 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:30:36,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:30:36,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:30:36,874 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_0a34ab5e-ce9c-4c55-9c85-93abf582ce43/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0a34ab5e-ce9c-4c55-9c85-93abf582ce43/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a2e0f33ac5b7c0fe5cd7ffdd1eac9c075d8b0ce [2020-12-01 16:30:37,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:30:37,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:30:37,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:30:37,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:30:37,207 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:30:37,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0a34ab5e-ce9c-4c55-9c85-93abf582ce43/bin/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem14_label05.c [2020-12-01 16:30:37,288 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0a34ab5e-ce9c-4c55-9c85-93abf582ce43/bin/ukojak/data/5e22a8fbd/a6479d66035f481a833bc6ef0e3dc88a/FLAG392cdec9c [2020-12-01 16:30:37,953 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:30:37,954 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0a34ab5e-ce9c-4c55-9c85-93abf582ce43/sv-benchmarks/c/eca-rers2012/Problem14_label05.c [2020-12-01 16:30:37,979 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0a34ab5e-ce9c-4c55-9c85-93abf582ce43/bin/ukojak/data/5e22a8fbd/a6479d66035f481a833bc6ef0e3dc88a/FLAG392cdec9c [2020-12-01 16:30:38,186 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0a34ab5e-ce9c-4c55-9c85-93abf582ce43/bin/ukojak/data/5e22a8fbd/a6479d66035f481a833bc6ef0e3dc88a [2020-12-01 16:30:38,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:30:38,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:30:38,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:30:38,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:30:38,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:30:38,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:30:38" (1/1) ... [2020-12-01 16:30:38,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22b6e608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:38, skipping insertion in model container [2020-12-01 16:30:38,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:30:38" (1/1) ... [2020-12-01 16:30:38,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:30:38,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:30:38,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:30:38,846 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:30:38,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:30:38,966 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:30:38,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:38 WrapperNode [2020-12-01 16:30:38,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:30:38,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:30:38,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:30:38,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:30:38,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:38" (1/1) ... [2020-12-01 16:30:39,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:38" (1/1) ... [2020-12-01 16:30:39,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:30:39,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:30:39,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:30:39,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:30:39,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:38" (1/1) ... [2020-12-01 16:30:39,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:38" (1/1) ... [2020-12-01 16:30:39,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:38" (1/1) ... [2020-12-01 16:30:39,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:38" (1/1) ... [2020-12-01 16:30:39,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:38" (1/1) ... [2020-12-01 16:30:39,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:38" (1/1) ... [2020-12-01 16:30:39,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:38" (1/1) ... [2020-12-01 16:30:39,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:30:39,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:30:39,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:30:39,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:30:39,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a34ab5e-ce9c-4c55-9c85-93abf582ce43/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 16:30:39,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:30:39,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:30:39,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:30:39,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:31:07,707 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:31:07,707 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 16:31:07,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:31:07 BoogieIcfgContainer [2020-12-01 16:31:07,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:31:07,718 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:31:07,719 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:31:07,733 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:31:07,733 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:31:07" (1/1) ... [2020-12-01 16:31:07,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:31:07,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:31:07,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-12-01 16:31:07,812 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-12-01 16:31:07,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:31:07,817 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:31:07,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:31:08,170 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 16:31:08,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:31:08,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2020-12-01 16:31:08,349 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2020-12-01 16:31:08,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:31:08,349 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:31:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:31:09,255 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 16:31:10,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:31:10,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 30 transitions. [2020-12-01 16:31:10,186 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 30 transitions. [2020-12-01 16:31:10,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:31:10,189 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:31:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:31:11,919 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 16:31:14,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:31:14,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 28 states and 49 transitions. [2020-12-01 16:31:14,012 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 49 transitions. [2020-12-01 16:31:14,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:31:14,013 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:31:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:31:14,892 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 16:31:15,034 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 27 [2020-12-01 16:31:15,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:31:15,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 31 states and 55 transitions. [2020-12-01 16:31:15,726 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 55 transitions. [2020-12-01 16:31:15,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:31:15,727 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:31:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:31:36,639 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 16:31:38,048 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-01 16:31:38,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:31:38,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 41 states and 73 transitions. [2020-12-01 16:31:38,981 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 73 transitions. [2020-12-01 16:31:38,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:31:38,982 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:31:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:31:51,876 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 16:31:52,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:31:52,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 45 states and 82 transitions. [2020-12-01 16:31:52,376 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 82 transitions. [2020-12-01 16:31:52,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 16:31:52,377 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:31:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:31:54,273 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 20 [2020-12-01 16:31:54,543 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 36 [2020-12-01 16:31:54,863 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 31 [2020-12-01 16:31:55,151 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:31:55,554 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 33 [2020-12-01 16:31:57,031 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2020-12-01 16:31:58,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:31:58,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 55 states and 102 transitions. [2020-12-01 16:31:58,573 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 102 transitions. [2020-12-01 16:31:58,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 16:31:58,575 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:31:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:32:00,058 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:32:00,251 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 32 [2020-12-01 16:32:00,408 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2020-12-01 16:32:00,878 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2020-12-01 16:32:01,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:32:01,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 57 states and 107 transitions. [2020-12-01 16:32:01,185 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 107 transitions. [2020-12-01 16:32:01,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 16:32:01,186 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:32:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:32:02,409 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-12-01 16:32:02,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:32:02,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 52 states and 101 transitions. [2020-12-01 16:32:02,594 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-12-01 16:32:02,595 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:32:02,595 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2020-12-01 16:32:02,601 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 16:32:02,783 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 21 [2020-12-01 16:32:02,953 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 22 [2020-12-01 16:32:03,124 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 22 [2020-12-01 16:32:03,292 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 21 [2020-12-01 16:32:03,293 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:32:03,296 INFO L569 CodeCheckObserver]: Invariant with dag size 20 [2020-12-01 16:32:03,302 INFO L569 CodeCheckObserver]: Invariant with dag size 21 [2020-12-01 16:32:03,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:32:03 ImpRootNode [2020-12-01 16:32:03,303 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:32:03,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:32:03,304 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:32:03,304 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:32:03,305 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:31:07" (3/4) ... [2020-12-01 16:32:03,308 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:32:03,337 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 219 nodes and edges [2020-12-01 16:32:03,340 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-01 16:32:03,342 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 16:32:03,345 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-01 16:32:03,538 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0a34ab5e-ce9c-4c55-9c85-93abf582ce43/bin/ukojak/witness.graphml [2020-12-01 16:32:03,539 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:32:03,540 INFO L168 Benchmark]: Toolchain (without parser) took 85349.24 ms. Allocated memory was 113.2 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 78.1 MB in the beginning and 2.5 GB in the end (delta: -2.4 GB). Peak memory consumption was 110.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:32:03,540 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 71.3 MB. Free memory was 33.8 MB in the beginning and 33.7 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:32:03,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 764.89 ms. Allocated memory is still 113.2 MB. Free memory was 77.8 MB in the beginning and 68.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:32:03,542 INFO L168 Benchmark]: Boogie Procedure Inliner took 138.38 ms. Allocated memory is still 113.2 MB. Free memory was 68.5 MB in the beginning and 58.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:32:03,543 INFO L168 Benchmark]: Boogie Preprocessor took 118.75 ms. Allocated memory is still 113.2 MB. Free memory was 58.6 MB in the beginning and 52.3 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 16:32:03,544 INFO L168 Benchmark]: RCFGBuilder took 28487.87 ms. Allocated memory was 113.2 MB in the beginning and 679.5 MB in the end (delta: 566.2 MB). Free memory was 52.3 MB in the beginning and 343.5 MB in the end (delta: -291.2 MB). Peak memory consumption was 293.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:32:03,544 INFO L168 Benchmark]: CodeCheck took 55585.25 ms. Allocated memory was 679.5 MB in the beginning and 2.7 GB in the end (delta: 2.0 GB). Free memory was 343.5 MB in the beginning and 2.5 GB in the end (delta: -2.2 GB). Peak memory consumption was 1.4 GB. Max. memory is 16.1 GB. [2020-12-01 16:32:03,545 INFO L168 Benchmark]: Witness Printer took 234.77 ms. Allocated memory is still 2.7 GB. Free memory was 2.5 GB in the beginning and 2.5 GB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:32:03,547 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: 54.8s, OverallIterations: 10, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3152 SDtfs, 7150 SDslu, 4256 SDs, 0 SdLazy, 21590 SolverSat, 3408 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1417 GetRequests, 1226 SyntacticMatches, 51 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10917 ImplicationChecksByTransitivity, 11.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 4.7s SatisfiabilityAnalysisTime, 38.1s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 39660 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 59/192 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((!(7 == a21) || 12 <= a12) || a12 + 43 <= 0) || !(5 == a15 && a24 == 1) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((!(7 == a21) || 12 <= a12) || !(a24 == 1)) || a12 + 43 <= 0) || a15 <= 4) || 5 < a15 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 71.3 MB. Free memory was 33.8 MB in the beginning and 33.7 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 764.89 ms. Allocated memory is still 113.2 MB. Free memory was 77.8 MB in the beginning and 68.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 138.38 ms. Allocated memory is still 113.2 MB. Free memory was 68.5 MB in the beginning and 58.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 118.75 ms. Allocated memory is still 113.2 MB. Free memory was 58.6 MB in the beginning and 52.3 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 28487.87 ms. Allocated memory was 113.2 MB in the beginning and 679.5 MB in the end (delta: 566.2 MB). Free memory was 52.3 MB in the beginning and 343.5 MB in the end (delta: -291.2 MB). Peak memory consumption was 293.5 MB. Max. memory is 16.1 GB. * CodeCheck took 55585.25 ms. Allocated memory was 679.5 MB in the beginning and 2.7 GB in the end (delta: 2.0 GB). Free memory was 343.5 MB in the beginning and 2.5 GB in the end (delta: -2.2 GB). Peak memory consumption was 1.4 GB. Max. memory is 16.1 GB. * Witness Printer took 234.77 ms. Allocated memory is still 2.7 GB. Free memory was 2.5 GB in the beginning and 2.5 GB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...