./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound2.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_e7756cda-3a77-4761-93b8-2dd92ce8e10d/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e7756cda-3a77-4761-93b8-2dd92ce8e10d/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e7756cda-3a77-4761-93b8-2dd92ce8e10d/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e7756cda-3a77-4761-93b8-2dd92ce8e10d/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e7756cda-3a77-4761-93b8-2dd92ce8e10d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e7756cda-3a77-4761-93b8-2dd92ce8e10d/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 93b306e815c818938e90cb4a568cb4e679b069e8 ................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:32:35,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:32:35,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:32:36,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:32:36,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:32:36,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:32:36,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:32:36,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:32:36,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:32:36,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:32:36,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:32:36,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:32:36,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:32:36,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:32:36,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:32:36,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:32:36,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:32:36,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:32:36,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:32:36,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:32:36,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:32:36,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:32:36,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:32:36,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:32:36,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:32:36,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:32:36,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:32:36,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:32:36,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:32:36,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:32:36,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:32:36,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:32:36,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:32:36,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:32:36,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:32:36,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:32:36,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:32:36,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:32:36,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:32:36,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:32:36,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:32:36,126 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e7756cda-3a77-4761-93b8-2dd92ce8e10d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:32:36,152 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:32:36,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:32:36,153 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:32:36,153 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:32:36,154 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:32:36,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:32:36,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:32:36,155 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:32:36,155 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:32:36,156 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:32:36,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:32:36,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:32:36,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:32:36,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:32:36,157 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:32:36,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:32:36,157 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:32:36,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:32:36,158 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:32:36,158 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:32:36,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:32:36,159 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:32:36,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:32:36,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:32:36,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:32:36,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:32:36,160 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:32:36,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:32:36,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:32:36,161 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_e7756cda-3a77-4761-93b8-2dd92ce8e10d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e7756cda-3a77-4761-93b8-2dd92ce8e10d/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93b306e815c818938e90cb4a568cb4e679b069e8 [2020-11-28 04:32:36,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:32:36,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:32:36,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:32:36,476 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:32:36,478 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:32:36,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e7756cda-3a77-4761-93b8-2dd92ce8e10d/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound2.c [2020-11-28 04:32:36,554 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e7756cda-3a77-4761-93b8-2dd92ce8e10d/bin/ukojak/data/ff7d74bcb/184353d4b3814dcf9f9d4786884b9afe/FLAGa9ab9d2cf [2020-11-28 04:32:36,969 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:32:36,970 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e7756cda-3a77-4761-93b8-2dd92ce8e10d/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound2.c [2020-11-28 04:32:36,979 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e7756cda-3a77-4761-93b8-2dd92ce8e10d/bin/ukojak/data/ff7d74bcb/184353d4b3814dcf9f9d4786884b9afe/FLAGa9ab9d2cf [2020-11-28 04:32:37,355 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e7756cda-3a77-4761-93b8-2dd92ce8e10d/bin/ukojak/data/ff7d74bcb/184353d4b3814dcf9f9d4786884b9afe [2020-11-28 04:32:37,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:32:37,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:32:37,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:32:37,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:32:37,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:32:37,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:37" (1/1) ... [2020-11-28 04:32:37,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@534ffc77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:37, skipping insertion in model container [2020-11-28 04:32:37,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:37" (1/1) ... [2020-11-28 04:32:37,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:32:37,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:32:37,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:32:37,568 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:32:37,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:32:37,617 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:32:37,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:37 WrapperNode [2020-11-28 04:32:37,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:32:37,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:32:37,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:32:37,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:32:37,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:37" (1/1) ... [2020-11-28 04:32:37,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:37" (1/1) ... [2020-11-28 04:32:37,670 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:32:37,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:32:37,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:32:37,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:32:37,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:37" (1/1) ... [2020-11-28 04:32:37,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:37" (1/1) ... [2020-11-28 04:32:37,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:37" (1/1) ... [2020-11-28 04:32:37,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:37" (1/1) ... [2020-11-28 04:32:37,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:37" (1/1) ... [2020-11-28 04:32:37,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:37" (1/1) ... [2020-11-28 04:32:37,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:37" (1/1) ... [2020-11-28 04:32:37,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:32:37,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:32:37,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:32:37,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:32:37,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e7756cda-3a77-4761-93b8-2dd92ce8e10d/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 [2020-11-28 04:32:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:32:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:32:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:32:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:32:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:32:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:32:38,165 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:32:38,165 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 04:32:38,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:38 BoogieIcfgContainer [2020-11-28 04:32:38,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:32:38,168 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:32:38,168 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:32:38,179 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:32:38,179 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:38" (1/1) ... [2020-11-28 04:32:38,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:32:38,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:38,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2020-11-28 04:32:38,230 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2020-11-28 04:32:38,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:32:38,236 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:38,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:38,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:38,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-11-28 04:32:38,405 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-28 04:32:38,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:32:38,406 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:38,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 04:32:38,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:32:38,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:38,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:38,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2020-11-28 04:32:38,614 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2020-11-28 04:32:38,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:32:38,614 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:38,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 04:32:38,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:32:38,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:39,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:39,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2020-11-28 04:32:39,261 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2020-11-28 04:32:39,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:32:39,263 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:39,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:39,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:32:39,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:32:39,432 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 04:32:39,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:39,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:39,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2020-11-28 04:32:39,908 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2020-11-28 04:32:39,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:32:39,909 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:39,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 04:32:39,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:32:40,051 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:41,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:41,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 33 states and 52 transitions. [2020-11-28 04:32:41,279 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2020-11-28 04:32:41,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:32:41,280 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:41,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:32:41,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:32:41,378 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:42,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:42,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 37 states and 62 transitions. [2020-11-28 04:32:42,029 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 62 transitions. [2020-11-28 04:32:42,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:32:42,030 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:42,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:32:42,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:32:42,131 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:42,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:42,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 39 states and 63 transitions. [2020-11-28 04:32:42,544 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 63 transitions. [2020-11-28 04:32:42,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:32:42,545 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:42,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 04:32:42,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:32:42,653 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:44,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:44,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 33 states and 42 transitions. [2020-11-28 04:32:44,105 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2020-11-28 04:32:44,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:32:44,106 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:44,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-28 04:32:44,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:32:44,255 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:32:45,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:45,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 26 states and 31 transitions. [2020-11-28 04:32:45,099 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2020-11-28 04:32:45,100 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:32:45,100 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2020-11-28 04:32:45,106 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:32:45,258 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:32:45,262 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:32:45,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:32:45 ImpRootNode [2020-11-28 04:32:45,263 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:32:45,263 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:32:45,263 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:32:45,263 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:32:45,264 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:38" (3/4) ... [2020-11-28 04:32:45,267 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:32:45,274 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-11-28 04:32:45,279 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-28 04:32:45,279 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 04:32:45,279 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:32:45,280 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:32:45,340 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e7756cda-3a77-4761-93b8-2dd92ce8e10d/bin/ukojak/witness.graphml [2020-11-28 04:32:45,340 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:32:45,345 INFO L168 Benchmark]: Toolchain (without parser) took 7982.75 ms. Allocated memory was 94.4 MB in the beginning and 172.0 MB in the end (delta: 77.6 MB). Free memory was 63.6 MB in the beginning and 75.7 MB in the end (delta: -12.0 MB). Peak memory consumption was 66.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:45,345 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory was 51.7 MB in the beginning and 51.6 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:45,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.41 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 63.2 MB in the beginning and 94.2 MB in the end (delta: -31.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:45,347 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.46 ms. Allocated memory is still 117.4 MB. Free memory was 94.2 MB in the beginning and 93.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:45,347 INFO L168 Benchmark]: Boogie Preprocessor took 41.59 ms. Allocated memory is still 117.4 MB. Free memory was 93.1 MB in the beginning and 92.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:45,348 INFO L168 Benchmark]: RCFGBuilder took 454.27 ms. Allocated memory is still 117.4 MB. Free memory was 92.1 MB in the beginning and 78.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:45,348 INFO L168 Benchmark]: CodeCheck took 7094.59 ms. Allocated memory was 117.4 MB in the beginning and 172.0 MB in the end (delta: 54.5 MB). Free memory was 78.0 MB in the beginning and 78.8 MB in the end (delta: -801.8 kB). Peak memory consumption was 54.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:45,349 INFO L168 Benchmark]: Witness Printer took 80.26 ms. Allocated memory is still 172.0 MB. Free memory was 78.8 MB in the beginning and 75.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:45,352 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 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.8s, OverallIterations: 10, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3840 SDtfs, 536 SDslu, 1020 SDs, 0 SdLazy, 9630 SolverSat, 3906 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1211 GetRequests, 1042 SyntacticMatches, 39 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6775 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 6453 SizeOfPredicates, 14 NumberOfNonLiveVariables, 597 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 31/50 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: 37]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory was 51.7 MB in the beginning and 51.6 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 253.41 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 63.2 MB in the beginning and 94.2 MB in the end (delta: -31.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.46 ms. Allocated memory is still 117.4 MB. Free memory was 94.2 MB in the beginning and 93.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.59 ms. Allocated memory is still 117.4 MB. Free memory was 93.1 MB in the beginning and 92.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 454.27 ms. Allocated memory is still 117.4 MB. Free memory was 92.1 MB in the beginning and 78.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 7094.59 ms. Allocated memory was 117.4 MB in the beginning and 172.0 MB in the end (delta: 54.5 MB). Free memory was 78.0 MB in the beginning and 78.8 MB in the end (delta: -801.8 kB). Peak memory consumption was 54.8 MB. Max. memory is 16.1 GB. * Witness Printer took 80.26 ms. Allocated memory is still 172.0 MB. Free memory was 78.8 MB in the beginning and 75.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...