./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/underapprox_1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_04066cfd-e2df-4132-8a77-8e2b7b5bab10/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_04066cfd-e2df-4132-8a77-8e2b7b5bab10/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_04066cfd-e2df-4132-8a77-8e2b7b5bab10/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_04066cfd-e2df-4132-8a77-8e2b7b5bab10/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-acceleration/underapprox_1-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_04066cfd-e2df-4132-8a77-8e2b7b5bab10/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_04066cfd-e2df-4132-8a77-8e2b7b5bab10/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6cd948af0e0b6c8603db03ff6e3dfbac759cb557 ............................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 03:44:35,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:44:35,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:44:35,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:44:35,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:44:35,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:44:35,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:44:35,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:44:35,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:44:35,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:44:35,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:44:35,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:44:35,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:44:35,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:44:35,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:44:35,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:44:35,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:44:35,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:44:35,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:44:35,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:44:35,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:44:35,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:44:35,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:44:35,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:44:35,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:44:35,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:44:35,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:44:35,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:44:35,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:44:35,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:44:35,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:44:35,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:44:35,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:44:35,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:44:35,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:44:35,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:44:35,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:44:35,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:44:35,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:44:35,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:44:35,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:44:35,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_04066cfd-e2df-4132-8a77-8e2b7b5bab10/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-20 03:44:35,923 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:44:35,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:44:35,925 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 03:44:35,925 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 03:44:35,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:44:35,926 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:44:35,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:44:35,927 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:44:35,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:44:35,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:44:35,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:44:35,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 03:44:35,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 03:44:35,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 03:44:35,929 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:44:35,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:44:35,929 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:44:35,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 03:44:35,930 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 03:44:35,930 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 03:44:35,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:44:35,930 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 03:44:35,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 03:44:35,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:44:35,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 03:44:35,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 03:44:35,932 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 03:44:35,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 03:44:35,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 03:44:35,932 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_04066cfd-e2df-4132-8a77-8e2b7b5bab10/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(__VERIFIER_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 -> 6cd948af0e0b6c8603db03ff6e3dfbac759cb557 [2019-11-20 03:44:36,079 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:44:36,090 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:44:36,092 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:44:36,094 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:44:36,094 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:44:36,095 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_04066cfd-e2df-4132-8a77-8e2b7b5bab10/bin/ukojak/../../sv-benchmarks/c/loop-acceleration/underapprox_1-2.c [2019-11-20 03:44:36,144 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_04066cfd-e2df-4132-8a77-8e2b7b5bab10/bin/ukojak/data/3eb942fd3/ddcd5626851748efb7fe6b84cbb49a26/FLAG9525ca653 [2019-11-20 03:44:36,565 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:44:36,565 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_04066cfd-e2df-4132-8a77-8e2b7b5bab10/sv-benchmarks/c/loop-acceleration/underapprox_1-2.c [2019-11-20 03:44:36,571 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_04066cfd-e2df-4132-8a77-8e2b7b5bab10/bin/ukojak/data/3eb942fd3/ddcd5626851748efb7fe6b84cbb49a26/FLAG9525ca653 [2019-11-20 03:44:36,582 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_04066cfd-e2df-4132-8a77-8e2b7b5bab10/bin/ukojak/data/3eb942fd3/ddcd5626851748efb7fe6b84cbb49a26 [2019-11-20 03:44:36,584 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:44:36,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:44:36,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:44:36,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:44:36,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:44:36,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:44:36" (1/1) ... [2019-11-20 03:44:36,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d9c4f1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:44:36, skipping insertion in model container [2019-11-20 03:44:36,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:44:36" (1/1) ... [2019-11-20 03:44:36,600 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:44:36,612 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:44:36,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:44:36,746 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:44:36,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:44:36,836 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:44:36,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:44:36 WrapperNode [2019-11-20 03:44:36,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:44:36,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:44:36,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:44:36,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:44:36,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:44:36" (1/1) ... [2019-11-20 03:44:36,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:44:36" (1/1) ... [2019-11-20 03:44:36,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:44:36,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:44:36,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:44:36,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:44:36,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:44:36" (1/1) ... [2019-11-20 03:44:36,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:44:36" (1/1) ... [2019-11-20 03:44:36,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:44:36" (1/1) ... [2019-11-20 03:44:36,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:44:36" (1/1) ... [2019-11-20 03:44:36,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:44:36" (1/1) ... [2019-11-20 03:44:36,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:44:36" (1/1) ... [2019-11-20 03:44:36,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:44:36" (1/1) ... [2019-11-20 03:44:36,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:44:36,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:44:36,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:44:36,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:44:36,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:44:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04066cfd-e2df-4132-8a77-8e2b7b5bab10/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 [2019-11-20 03:44:36,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:44:36,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:44:37,181 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:44:37,181 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 03:44:37,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:44:37 BoogieIcfgContainer [2019-11-20 03:44:37,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:44:37,183 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 03:44:37,183 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 03:44:37,193 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 03:44:37,193 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:44:37" (1/1) ... [2019-11-20 03:44:37,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:44:37,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:44:37,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2019-11-20 03:44:37,237 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2019-11-20 03:44:37,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 03:44:37,239 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:44:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:44:37,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:44:37,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:44:37,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-20 03:44:37,470 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-11-20 03:44:37,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 03:44:37,470 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:44:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:44:37,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:44:37,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:44:37,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-20 03:44:37,630 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-20 03:44:37,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 03:44:37,631 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:44:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:44:37,723 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:44:37,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:44:37,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-11-20 03:44:37,826 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-11-20 03:44:37,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 03:44:37,827 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:44:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:44:37,944 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:44:38,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:44:38,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-11-20 03:44:38,038 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-11-20 03:44:38,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 03:44:38,038 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:44:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:44:38,185 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:44:38,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:44:38,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-11-20 03:44:38,286 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-11-20 03:44:38,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 03:44:38,287 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:44:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:44:38,452 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:44:38,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:44:38,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-11-20 03:44:38,562 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-11-20 03:44:38,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 03:44:38,563 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:44:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:45:05,378 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 18 [2019-11-20 03:45:05,404 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 19 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:45:58,878 WARN L191 SmtUtils]: Spent 5.07 s on a formula simplification that was a NOOP. DAG size: 17 [2019-11-20 03:47:46,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:47:46,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2019-11-20 03:47:46,010 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-11-20 03:47:46,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 03:47:46,010 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:47:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:47:46,245 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:48:07,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:48:07,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 11 states and 10 transitions. [2019-11-20 03:48:07,299 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2019-11-20 03:48:07,299 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 03:48:07,299 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2019-11-20 03:48:07,307 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-11-20 03:48:25,072 WARN L191 SmtUtils]: Spent 17.76 s on a formula simplification that was a NOOP. DAG size: 94 [2019-11-20 03:48:25,075 INFO L569 CodeCheckObserver]: Invariant with dag size 94 [2019-11-20 03:48:25,090 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-20 03:48:25,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 03:48:25 ImpRootNode [2019-11-20 03:48:25,091 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 03:48:25,092 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:48:25,092 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:48:25,092 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:48:25,093 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:44:37" (3/4) ... [2019-11-20 03:48:25,097 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 03:48:25,105 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-20 03:48:25,106 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 03:48:25,157 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_04066cfd-e2df-4132-8a77-8e2b7b5bab10/bin/ukojak/witness.graphml [2019-11-20 03:48:25,157 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:48:25,159 INFO L168 Benchmark]: Toolchain (without parser) took 228573.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 946.1 MB in the beginning and 907.7 MB in the end (delta: 38.5 MB). Peak memory consumption was 168.0 MB. Max. memory is 11.5 GB. [2019-11-20 03:48:25,160 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:48:25,161 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -178.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-11-20 03:48:25,167 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:48:25,167 INFO L168 Benchmark]: Boogie Preprocessor took 31.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:48:25,168 INFO L168 Benchmark]: RCFGBuilder took 278.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:48:25,169 INFO L168 Benchmark]: CodeCheck took 227908.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 909.4 MB in the end (delta: 196.5 MB). Peak memory consumption was 196.5 MB. Max. memory is 11.5 GB. [2019-11-20 03:48:25,170 INFO L168 Benchmark]: Witness Printer took 65.48 ms. Allocated memory is still 1.2 GB. Free memory was 909.4 MB in the beginning and 907.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:48:25,174 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Result: SAFE, OverallTime: 210.0s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 384 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 1656 SolverSat, 1578 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 61.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 424 GetRequests, 316 SyntacticMatches, 36 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2201 ImplicationChecksByTransitivity, 173.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 27.5s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 2818 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 7/84 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: 5]: 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: 14]: Loop Invariant Derived loop invariant: (((((((x <= 3 && 2 < x) && 178956971 * y + 178956968 <= 536870912 * ((y * 178956971 + 178956968) / 536870912)) || (((y <= 1 && x <= 0) && 1 <= y) && 0 <= x)) || ((x <= 4 && 3 < x) && 715827883 * y + 357913936 <= 1073741824 * ((y * 715827883 + 357913936) / 1073741824))) || ((44739243 * y + 44739242 <= 134217728 * ((y * 44739243 + 44739242) / 134217728) && x <= 1) && 0 < x)) || ((4 < x && 715827883 * y + 715827872 <= 2147483648 * ((y * 715827883 + 715827872) / 2147483648)) && x <= 5)) || ((178956971 * y + 89478484 <= 268435456 * ((y * 178956971 + 89478484) / 268435456) && 1 < x) && x <= 2)) || ((6 <= x && x / 4294967296 <= 0) && !(y == 3 * ((y + y / 4294967296 * -4294967296) / 3) + 4294967296 * (((y + y / 4294967296 * -4294967296) / 3 * -3 + y + y / 4294967296 * -4294967296) / 4294967296) + 4294967296 * (y / 4294967296))) - InvariantResult [Line: 1]: 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 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 251.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -178.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 278.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * CodeCheck took 227908.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 909.4 MB in the end (delta: 196.5 MB). Peak memory consumption was 196.5 MB. Max. memory is 11.5 GB. * Witness Printer took 65.48 ms. Allocated memory is still 1.2 GB. Free memory was 909.4 MB in the beginning and 907.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...