./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/fragtest_simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a301d63c-c322-4d6f-81e3-6180b49e1ad8/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a301d63c-c322-4d6f-81e3-6180b49e1ad8/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a301d63c-c322-4d6f-81e3-6180b49e1ad8/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a301d63c-c322-4d6f-81e3-6180b49e1ad8/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/fragtest_simple.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a301d63c-c322-4d6f-81e3-6180b49e1ad8/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a301d63c-c322-4d6f-81e3-6180b49e1ad8/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 a94bf9d893e116ed4626eae9cec69d948eb5bc31 .......................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:54:33,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:54:33,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:54:33,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:54:33,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:54:33,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:54:33,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:54:33,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:54:33,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:54:33,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:54:33,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:54:33,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:54:33,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:54:33,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:54:33,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:54:33,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:54:33,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:54:33,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:54:33,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:54:33,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:54:33,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:54:33,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:54:33,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:54:33,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:54:33,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:54:33,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:54:33,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:54:33,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:54:33,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:54:33,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:54:33,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:54:33,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:54:33,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:54:33,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:54:33,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:54:33,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:54:33,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:54:33,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:54:33,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:54:33,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:54:33,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:54:33,909 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a301d63c-c322-4d6f-81e3-6180b49e1ad8/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-26 02:54:33,922 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:54:33,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:54:33,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:54:33,923 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:54:33,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:54:33,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:54:33,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:54:33,924 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:54:33,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:54:33,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:54:33,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:54:33,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:54:33,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:54:33,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:54:33,926 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:54:33,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:54:33,926 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:54:33,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:54:33,927 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:54:33,927 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:54:33,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:54:33,927 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:54:33,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:54:33,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:54:33,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:54:33,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:54:33,928 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:54:33,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:54:33,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:54:33,929 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_a301d63c-c322-4d6f-81e3-6180b49e1ad8/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 -> a94bf9d893e116ed4626eae9cec69d948eb5bc31 [2019-11-26 02:54:34,079 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:54:34,089 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:54:34,091 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:54:34,097 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:54:34,097 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:54:34,098 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a301d63c-c322-4d6f-81e3-6180b49e1ad8/bin/ukojak/../../sv-benchmarks/c/loop-invgen/fragtest_simple.i [2019-11-26 02:54:34,156 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a301d63c-c322-4d6f-81e3-6180b49e1ad8/bin/ukojak/data/62fce2a42/3dc18191fc704ce8822546d31db186ae/FLAG43b9ddc75 [2019-11-26 02:54:34,526 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:54:34,527 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a301d63c-c322-4d6f-81e3-6180b49e1ad8/sv-benchmarks/c/loop-invgen/fragtest_simple.i [2019-11-26 02:54:34,533 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a301d63c-c322-4d6f-81e3-6180b49e1ad8/bin/ukojak/data/62fce2a42/3dc18191fc704ce8822546d31db186ae/FLAG43b9ddc75 [2019-11-26 02:54:34,965 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a301d63c-c322-4d6f-81e3-6180b49e1ad8/bin/ukojak/data/62fce2a42/3dc18191fc704ce8822546d31db186ae [2019-11-26 02:54:34,968 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:54:34,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:54:34,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:54:34,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:54:34,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:54:34,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:54:34" (1/1) ... [2019-11-26 02:54:34,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f6837a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:34, skipping insertion in model container [2019-11-26 02:54:34,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:54:34" (1/1) ... [2019-11-26 02:54:34,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:54:35,007 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:54:35,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:54:35,199 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:54:35,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:54:35,297 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:54:35,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:35 WrapperNode [2019-11-26 02:54:35,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:54:35,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:54:35,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:54:35,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:54:35,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:35" (1/1) ... [2019-11-26 02:54:35,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:35" (1/1) ... [2019-11-26 02:54:35,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:54:35,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:54:35,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:54:35,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:54:35,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:35" (1/1) ... [2019-11-26 02:54:35,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:35" (1/1) ... [2019-11-26 02:54:35,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:35" (1/1) ... [2019-11-26 02:54:35,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:35" (1/1) ... [2019-11-26 02:54:35,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:35" (1/1) ... [2019-11-26 02:54:35,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:35" (1/1) ... [2019-11-26 02:54:35,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:35" (1/1) ... [2019-11-26 02:54:35,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:54:35,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:54:35,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:54:35,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:54:35,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a301d63c-c322-4d6f-81e3-6180b49e1ad8/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 [2019-11-26 02:54:35,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:54:35,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:54:35,622 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:54:35,622 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-26 02:54:35,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:54:35 BoogieIcfgContainer [2019-11-26 02:54:35,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:54:35,624 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:54:35,624 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:54:35,633 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:54:35,633 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:54:35" (1/1) ... [2019-11-26 02:54:35,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:54:35,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:54:35,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 15 states and 21 transitions. [2019-11-26 02:54:35,686 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 21 transitions. [2019-11-26 02:54:35,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:54:35,688 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:54:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:54:35,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:54:35,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:54:35,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2019-11-26 02:54:35,808 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-11-26 02:54:35,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:54:35,810 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:54:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:54:35,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:54:36,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:54:36,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2019-11-26 02:54:36,009 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-11-26 02:54:36,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-26 02:54:36,009 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:54:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:54:36,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:54:36,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:54:36,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2019-11-26 02:54:36,528 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-11-26 02:54:36,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-26 02:54:36,529 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:54:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:54:36,667 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:54:37,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:54:37,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2019-11-26 02:54:37,511 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2019-11-26 02:54:37,511 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:54:37,512 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2019-11-26 02:54:37,520 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-11-26 02:54:37,635 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-26 02:54:37,638 INFO L569 CodeCheckObserver]: Invariant with dag size 12 [2019-11-26 02:54:37,643 INFO L569 CodeCheckObserver]: Invariant with dag size 10 [2019-11-26 02:54:37,644 INFO L569 CodeCheckObserver]: Invariant with dag size 7 [2019-11-26 02:54:37,644 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2019-11-26 02:54:37,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:54:37 ImpRootNode [2019-11-26 02:54:37,645 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:54:37,646 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:54:37,646 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:54:37,646 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:54:37,646 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:54:35" (3/4) ... [2019-11-26 02:54:37,649 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:54:37,658 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-26 02:54:37,658 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:54:37,658 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:54:37,703 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a301d63c-c322-4d6f-81e3-6180b49e1ad8/bin/ukojak/witness.graphml [2019-11-26 02:54:37,704 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:54:37,706 INFO L168 Benchmark]: Toolchain (without parser) took 2735.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 951.5 MB in the beginning and 893.4 MB in the end (delta: 58.1 MB). Peak memory consumption was 167.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:37,706 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:54:37,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -151.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:37,707 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.46 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:54:37,707 INFO L168 Benchmark]: Boogie Preprocessor took 18.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:54:37,708 INFO L168 Benchmark]: RCFGBuilder took 277.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:37,708 INFO L168 Benchmark]: CodeCheck took 2021.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 893.4 MB in the end (delta: 183.5 MB). Peak memory consumption was 183.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:37,709 INFO L168 Benchmark]: Witness Printer took 57.93 ms. Allocated memory is still 1.1 GB. Free memory is still 893.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:54:37,711 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, 15 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 208 SDtfs, 170 SDslu, 168 SDs, 0 SdLazy, 294 SolverSat, 96 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 389 GetRequests, 337 SyntacticMatches, 6 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1440 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 4/6 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: 31]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (j < n && n <= k + j) || (0 <= k && n <= j) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (i <= 0 && 0 <= k) || (i <= k && 0 < i) - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: n <= k + j || n <= j - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 <= k * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 325.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -151.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.46 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 277.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * CodeCheck took 2021.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 893.4 MB in the end (delta: 183.5 MB). Peak memory consumption was 183.5 MB. Max. memory is 11.5 GB. * Witness Printer took 57.93 ms. Allocated memory is still 1.1 GB. Free memory is still 893.4 MB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...