./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound1.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_a02baca6-5958-4fc4-8b48-e6ce6bd9e61a/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a02baca6-5958-4fc4-8b48-e6ce6bd9e61a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a02baca6-5958-4fc4-8b48-e6ce6bd9e61a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a02baca6-5958-4fc4-8b48-e6ce6bd9e61a/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a02baca6-5958-4fc4-8b48-e6ce6bd9e61a/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a02baca6-5958-4fc4-8b48-e6ce6bd9e61a/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 20b5237507dac5a0607baaec234566847ea5652a ...................................................................................................................................................................................................................................................................... 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 04:44:53,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:44:53,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:44:53,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:44:53,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:44:53,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:44:53,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:44:53,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:44:53,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:44:53,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:44:53,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:44:53,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:44:53,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:44:53,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:44:53,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:44:53,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:44:53,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:44:53,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:44:53,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:44:53,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:44:53,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:44:53,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:44:53,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:44:53,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:44:53,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:44:53,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:44:53,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:44:53,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:44:53,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:44:53,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:44:53,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:44:53,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:44:53,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:44:53,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:44:53,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:44:53,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:44:53,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:44:53,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:44:53,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:44:53,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:44:53,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:44:53,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a02baca6-5958-4fc4-8b48-e6ce6bd9e61a/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:44:53,772 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:44:53,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:44:53,773 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:44:53,774 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:44:53,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:44:53,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:44:53,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:44:53,775 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:44:53,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:44:53,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:44:53,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:44:53,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:44:53,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:44:53,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:44:53,777 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:44:53,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:44:53,777 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:44:53,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:44:53,778 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:44:53,778 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:44:53,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:44:53,778 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:44:53,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:44:53,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:44:53,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:44:53,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:44:53,780 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:44:53,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:44:53,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:44:53,781 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_a02baca6-5958-4fc4-8b48-e6ce6bd9e61a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a02baca6-5958-4fc4-8b48-e6ce6bd9e61a/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20b5237507dac5a0607baaec234566847ea5652a [2020-11-28 04:44:54,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:44:54,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:44:54,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:44:54,096 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:44:54,098 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:44:54,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a02baca6-5958-4fc4-8b48-e6ce6bd9e61a/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound1.c [2020-11-28 04:44:54,185 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a02baca6-5958-4fc4-8b48-e6ce6bd9e61a/bin/ukojak/data/e8d0cadac/82ee965479de43e1b6d9529ac5da5764/FLAG6ef0fbdb7 [2020-11-28 04:44:54,754 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:44:54,754 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a02baca6-5958-4fc4-8b48-e6ce6bd9e61a/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound1.c [2020-11-28 04:44:54,766 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a02baca6-5958-4fc4-8b48-e6ce6bd9e61a/bin/ukojak/data/e8d0cadac/82ee965479de43e1b6d9529ac5da5764/FLAG6ef0fbdb7 [2020-11-28 04:44:55,111 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a02baca6-5958-4fc4-8b48-e6ce6bd9e61a/bin/ukojak/data/e8d0cadac/82ee965479de43e1b6d9529ac5da5764 [2020-11-28 04:44:55,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:44:55,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:44:55,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:55,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:44:55,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:44:55,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10bc07a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55, skipping insertion in model container [2020-11-28 04:44:55,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:44:55,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:44:55,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:55,359 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:44:55,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:55,416 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:44:55,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55 WrapperNode [2020-11-28 04:44:55,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:55,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:55,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:44:55,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:44:55,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:55,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:44:55,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:44:55,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:44:55,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:44:55,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:44:55,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:44:55,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:44:55,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a02baca6-5958-4fc4-8b48-e6ce6bd9e61a/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 04:44:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:44:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:44:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:44:55,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:44:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:44:55,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:44:56,059 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:44:56,059 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 04:44:56,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:56 BoogieIcfgContainer [2020-11-28 04:44:56,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:44:56,062 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:44:56,062 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:44:56,074 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:44:56,074 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:56" (1/1) ... [2020-11-28 04:44:56,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:44:56,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:56,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2020-11-28 04:44:56,133 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2020-11-28 04:44:56,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:44:56,137 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:56,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:56,292 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 04:44:56,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:56,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-11-28 04:44:56,306 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-28 04:44:56,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:44:56,307 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:56,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 04:44:56,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:44:56,446 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 04:44:56,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:56,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2020-11-28 04:44:56,504 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-11-28 04:44:56,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:44:56,504 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:56,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:56,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 04:44:56,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:44:56,615 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 04:44:56,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:56,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2020-11-28 04:44:56,991 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2020-11-28 04:44:56,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:44:56,993 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:57,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:44:57,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:44:57,158 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 04:44:57,226 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 04:44:57,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:57,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2020-11-28 04:44:57,571 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2020-11-28 04:44:57,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:44:57,572 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:57,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:44:57,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:44:57,653 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 04:44:58,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:58,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 28 states and 40 transitions. [2020-11-28 04:44:58,233 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2020-11-28 04:44:58,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:44:58,234 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:58,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 04:44:58,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:44:58,339 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:59,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:59,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 18 states and 20 transitions. [2020-11-28 04:44:59,408 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-11-28 04:44:59,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:44:59,409 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2020-11-28 04:44:59,415 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:44:59,514 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:44:59,516 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:44:59,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:44:59 ImpRootNode [2020-11-28 04:44:59,517 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:44:59,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:44:59,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:44:59,518 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:44:59,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:56" (3/4) ... [2020-11-28 04:44:59,521 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:44:59,527 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-11-28 04:44:59,530 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-28 04:44:59,530 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 04:44:59,531 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:44:59,531 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:44:59,572 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a02baca6-5958-4fc4-8b48-e6ce6bd9e61a/bin/ukojak/witness.graphml [2020-11-28 04:44:59,572 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:44:59,574 INFO L168 Benchmark]: Toolchain (without parser) took 4458.20 ms. Allocated memory was 77.6 MB in the beginning and 113.2 MB in the end (delta: 35.7 MB). Free memory was 46.4 MB in the beginning and 84.5 MB in the end (delta: -38.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:59,574 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 77.6 MB. Free memory was 37.7 MB in the beginning and 37.6 MB in the end (delta: 37.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:59,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.47 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 46.2 MB in the beginning and 72.2 MB in the end (delta: -25.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:59,576 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.91 ms. Allocated memory is still 94.4 MB. Free memory was 72.2 MB in the beginning and 70.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:59,576 INFO L168 Benchmark]: Boogie Preprocessor took 43.05 ms. Allocated memory is still 94.4 MB. Free memory was 70.7 MB in the beginning and 69.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:59,577 INFO L168 Benchmark]: RCFGBuilder took 557.15 ms. Allocated memory is still 94.4 MB. Free memory was 69.7 MB in the beginning and 56.5 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:59,578 INFO L168 Benchmark]: CodeCheck took 3454.98 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 56.0 MB in the beginning and 87.7 MB in the end (delta: -31.6 MB). Peak memory consumption was 48.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:59,578 INFO L168 Benchmark]: Witness Printer took 54.94 ms. Allocated memory is still 113.2 MB. Free memory was 87.7 MB in the beginning and 84.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:59,582 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: 3.3s, OverallIterations: 7, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 480 SDtfs, 52 SDslu, 116 SDs, 0 SdLazy, 962 SolverSat, 442 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 564 GetRequests, 485 SyntacticMatches, 11 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1386 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 2049 SizeOfPredicates, 8 NumberOfNonLiveVariables, 327 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 7/11 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 0.18 ms. Allocated memory is still 77.6 MB. Free memory was 37.7 MB in the beginning and 37.6 MB in the end (delta: 37.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 299.47 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 46.2 MB in the beginning and 72.2 MB in the end (delta: -25.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.91 ms. Allocated memory is still 94.4 MB. Free memory was 72.2 MB in the beginning and 70.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.05 ms. Allocated memory is still 94.4 MB. Free memory was 70.7 MB in the beginning and 69.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 557.15 ms. Allocated memory is still 94.4 MB. Free memory was 69.7 MB in the beginning and 56.5 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 3454.98 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 56.0 MB in the beginning and 87.7 MB in the end (delta: -31.6 MB). Peak memory consumption was 48.5 MB. Max. memory is 16.1 GB. * Witness Printer took 54.94 ms. Allocated memory is still 113.2 MB. Free memory was 87.7 MB in the beginning and 84.5 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...