./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-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_13ab0057-c52e-4aea-9c92-a8d6a4b94d23/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_13ab0057-c52e-4aea-9c92-a8d6a4b94d23/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_13ab0057-c52e-4aea-9c92-a8d6a4b94d23/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_13ab0057-c52e-4aea-9c92-a8d6a4b94d23/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_13ab0057-c52e-4aea-9c92-a8d6a4b94d23/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_13ab0057-c52e-4aea-9c92-a8d6a4b94d23/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 a3e843bfc822d054ad9b10c58d6f83fcd4aca808 .......................................................................................................................................................................................................................................................................................... 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 04:40:16,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:40:16,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:40:16,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:40:16,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:40:16,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:40:16,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:40:16,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:40:16,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:40:16,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:40:16,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:40:16,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:40:16,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:40:16,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:40:16,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:40:16,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:40:16,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:40:16,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:40:16,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:40:16,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:40:16,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:40:16,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:40:16,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:40:16,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:40:16,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:40:16,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:40:16,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:40:16,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:40:16,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:40:16,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:40:16,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:40:16,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:40:16,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:40:16,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:40:16,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:40:16,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:40:16,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:40:16,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:40:16,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:40:16,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:40:16,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:40:16,831 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_13ab0057-c52e-4aea-9c92-a8d6a4b94d23/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:40:16,880 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:40:16,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:40:16,881 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:40:16,881 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:40:16,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:40:16,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:40:16,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:40:16,883 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:40:16,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:40:16,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:40:16,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:40:16,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:40:16,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:40:16,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:40:16,885 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:40:16,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:40:16,887 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:40:16,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:40:16,888 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:40:16,888 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:40:16,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:40:16,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:40:16,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:40:16,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:40:16,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:40:16,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:40:16,890 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:40:16,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:40:16,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:40:16,891 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_13ab0057-c52e-4aea-9c92-a8d6a4b94d23/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_13ab0057-c52e-4aea-9c92-a8d6a4b94d23/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3e843bfc822d054ad9b10c58d6f83fcd4aca808 [2020-11-28 04:40:17,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:40:17,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:40:17,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:40:17,317 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:40:17,319 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:40:17,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_13ab0057-c52e-4aea-9c92-a8d6a4b94d23/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound1.c [2020-11-28 04:40:17,415 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_13ab0057-c52e-4aea-9c92-a8d6a4b94d23/bin/ukojak/data/dcba339e1/8f90d1590f1b4c19bde5da2a9372ff30/FLAG5b56dbc8d [2020-11-28 04:40:17,935 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:40:17,936 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_13ab0057-c52e-4aea-9c92-a8d6a4b94d23/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound1.c [2020-11-28 04:40:17,944 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_13ab0057-c52e-4aea-9c92-a8d6a4b94d23/bin/ukojak/data/dcba339e1/8f90d1590f1b4c19bde5da2a9372ff30/FLAG5b56dbc8d [2020-11-28 04:40:18,296 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_13ab0057-c52e-4aea-9c92-a8d6a4b94d23/bin/ukojak/data/dcba339e1/8f90d1590f1b4c19bde5da2a9372ff30 [2020-11-28 04:40:18,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:40:18,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:40:18,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:40:18,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:40:18,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:40:18,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:40:18" (1/1) ... [2020-11-28 04:40:18,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20eafccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:18, skipping insertion in model container [2020-11-28 04:40:18,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:40:18" (1/1) ... [2020-11-28 04:40:18,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:40:18,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:40:18,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:40:18,701 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:40:18,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:40:18,768 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:40:18,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:18 WrapperNode [2020-11-28 04:40:18,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:40:18,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:40:18,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:40:18,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:40:18,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:18" (1/1) ... [2020-11-28 04:40:18,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:18" (1/1) ... [2020-11-28 04:40:18,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:40:18,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:40:18,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:40:18,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:40:18,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:18" (1/1) ... [2020-11-28 04:40:18,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:18" (1/1) ... [2020-11-28 04:40:18,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:18" (1/1) ... [2020-11-28 04:40:18,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:18" (1/1) ... [2020-11-28 04:40:18,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:18" (1/1) ... [2020-11-28 04:40:18,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:18" (1/1) ... [2020-11-28 04:40:18,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:18" (1/1) ... [2020-11-28 04:40:18,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:40:18,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:40:18,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:40:18,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:40:18,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_13ab0057-c52e-4aea-9c92-a8d6a4b94d23/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 04:40:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:40:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:40:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:40:18,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:40:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:40:18,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:40:19,433 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:40:19,434 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 04:40:19,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:19 BoogieIcfgContainer [2020-11-28 04:40:19,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:40:19,437 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:40:19,437 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:40:19,455 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:40:19,455 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:19" (1/1) ... [2020-11-28 04:40:19,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:40:19,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:19,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 36 transitions. [2020-11-28 04:40:19,513 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 36 transitions. [2020-11-28 04:40:19,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:40:19,519 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:19,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:19,655 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 04:40:19,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:19,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2020-11-28 04:40:19,664 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2020-11-28 04:40:19,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:40:19,665 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:19,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 04:40:19,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:40:19,818 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 04:40:19,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:19,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2020-11-28 04:40:19,874 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2020-11-28 04:40:19,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:40:19,874 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:19,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-28 04:40:19,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:40:20,072 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 04:40:20,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:20,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 31 states and 50 transitions. [2020-11-28 04:40:20,546 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 50 transitions. [2020-11-28 04:40:20,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:40:20,547 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:20,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-28 04:40:20,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:40:20,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:21,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:21,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 35 states and 58 transitions. [2020-11-28 04:40:21,373 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 58 transitions. [2020-11-28 04:40:21,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 04:40:21,375 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:21,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:40:21,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:40:21,653 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:40:21,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:21,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 37 states and 63 transitions. [2020-11-28 04:40:21,992 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 63 transitions. [2020-11-28 04:40:21,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 04:40:21,993 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:22,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 04:40:22,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:40:22,145 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:40:23,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:23,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 48 states and 97 transitions. [2020-11-28 04:40:23,604 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 97 transitions. [2020-11-28 04:40:23,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:40:23,607 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:23,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-28 04:40:23,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:40:23,830 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:40:24,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:24,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 54 states and 108 transitions. [2020-11-28 04:40:24,990 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 108 transitions. [2020-11-28 04:40:24,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:40:24,991 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:25,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 04:40:25,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:40:25,256 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:40:25,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:25,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 22 states and 25 transitions. [2020-11-28 04:40:25,897 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-11-28 04:40:25,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:40:25,898 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2020-11-28 04:40:25,904 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:40:26,047 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:40:26,050 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:40:26,050 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:40:26,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:40:26 ImpRootNode [2020-11-28 04:40:26,051 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:40:26,051 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:40:26,051 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:40:26,052 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:40:26,052 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:19" (3/4) ... [2020-11-28 04:40:26,056 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:40:26,061 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-11-28 04:40:26,065 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-28 04:40:26,065 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 04:40:26,066 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:40:26,066 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:40:26,118 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_13ab0057-c52e-4aea-9c92-a8d6a4b94d23/bin/ukojak/witness.graphml [2020-11-28 04:40:26,118 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:40:26,120 INFO L168 Benchmark]: Toolchain (without parser) took 7818.53 ms. Allocated memory was 98.6 MB in the beginning and 144.7 MB in the end (delta: 46.1 MB). Free memory was 64.1 MB in the beginning and 63.8 MB in the end (delta: 284.8 kB). Peak memory consumption was 46.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:26,121 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 98.6 MB. Free memory was 69.7 MB in the beginning and 69.7 MB in the end (delta: 30.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:40:26,121 INFO L168 Benchmark]: CACSL2BoogieTranslator took 468.30 ms. Allocated memory is still 98.6 MB. Free memory was 63.9 MB in the beginning and 74.5 MB in the end (delta: -10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:26,122 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.29 ms. Allocated memory is still 98.6 MB. Free memory was 74.5 MB in the beginning and 72.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:26,122 INFO L168 Benchmark]: Boogie Preprocessor took 37.40 ms. Allocated memory is still 98.6 MB. Free memory was 72.9 MB in the beginning and 71.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:40:26,123 INFO L168 Benchmark]: RCFGBuilder took 568.66 ms. Allocated memory is still 98.6 MB. Free memory was 71.7 MB in the beginning and 53.4 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:26,124 INFO L168 Benchmark]: CodeCheck took 6613.48 ms. Allocated memory was 98.6 MB in the beginning and 144.7 MB in the end (delta: 46.1 MB). Free memory was 53.0 MB in the beginning and 66.9 MB in the end (delta: -13.9 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:26,124 INFO L168 Benchmark]: Witness Printer took 67.12 ms. Allocated memory is still 144.7 MB. Free memory was 66.9 MB in the beginning and 63.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:26,127 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, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.4s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2896 SDtfs, 104 SDslu, 288 SDs, 0 SdLazy, 4710 SolverSat, 1782 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1166 GetRequests, 1038 SyntacticMatches, 14 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5092 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 5752 SizeOfPredicates, 16 NumberOfNonLiveVariables, 578 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 36/39 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: 8]: 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: 63]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 98.6 MB. Free memory was 69.7 MB in the beginning and 69.7 MB in the end (delta: 30.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 468.30 ms. Allocated memory is still 98.6 MB. Free memory was 63.9 MB in the beginning and 74.5 MB in the end (delta: -10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.29 ms. Allocated memory is still 98.6 MB. Free memory was 74.5 MB in the beginning and 72.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.40 ms. Allocated memory is still 98.6 MB. Free memory was 72.9 MB in the beginning and 71.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 568.66 ms. Allocated memory is still 98.6 MB. Free memory was 71.7 MB in the beginning and 53.4 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 6613.48 ms. Allocated memory was 98.6 MB in the beginning and 144.7 MB in the end (delta: 46.1 MB). Free memory was 53.0 MB in the beginning and 66.9 MB in the end (delta: -13.9 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. * Witness Printer took 67.12 ms. Allocated memory is still 144.7 MB. Free memory was 66.9 MB in the beginning and 63.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...