./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/for_bounded_loop1.c --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_bd8f26ef-3b1d-4541-8afa-38c6d6f164f4/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_bd8f26ef-3b1d-4541-8afa-38c6d6f164f4/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bd8f26ef-3b1d-4541-8afa-38c6d6f164f4/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bd8f26ef-3b1d-4541-8afa-38c6d6f164f4/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/for_bounded_loop1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bd8f26ef-3b1d-4541-8afa-38c6d6f164f4/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bd8f26ef-3b1d-4541-8afa-38c6d6f164f4/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 1a0e89cb1a2148382c7546df46cfbb79c04a1e70 .................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:43:00,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:43:00,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:43:00,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:43:00,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:43:00,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:43:00,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:43:00,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:43:00,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:43:00,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:43:00,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:43:00,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:43:00,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:43:00,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:43:00,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:43:00,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:43:00,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:43:00,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:43:00,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:43:00,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:43:00,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:43:00,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:43:00,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:43:00,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:43:00,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:43:00,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:43:00,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:43:00,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:43:00,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:43:00,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:43:00,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:43:00,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:43:00,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:43:00,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:43:00,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:43:00,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:43:00,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:43:00,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:43:00,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:43:00,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:43:00,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:43:00,783 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bd8f26ef-3b1d-4541-8afa-38c6d6f164f4/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-26 02:43:00,806 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:43:00,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:43:00,807 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:43:00,808 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:43:00,808 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:43:00,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:43:00,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:43:00,809 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:43:00,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:43:00,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:43:00,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:43:00,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:43:00,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:43:00,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:43:00,810 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:43:00,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:43:00,811 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:43:00,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:43:00,811 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:43:00,811 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:43:00,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:43:00,812 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:43:00,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:43:00,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:43:00,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:43:00,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:43:00,813 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:43:00,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:43:00,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:43:00,814 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_bd8f26ef-3b1d-4541-8afa-38c6d6f164f4/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 -> 1a0e89cb1a2148382c7546df46cfbb79c04a1e70 [2019-11-26 02:43:00,949 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:43:00,960 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:43:00,963 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:43:00,964 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:43:00,964 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:43:00,965 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bd8f26ef-3b1d-4541-8afa-38c6d6f164f4/bin/ukojak/../../sv-benchmarks/c/loops/for_bounded_loop1.c [2019-11-26 02:43:01,023 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bd8f26ef-3b1d-4541-8afa-38c6d6f164f4/bin/ukojak/data/94014c6dd/4910e0e5a1c7457f9f8fc95c3af82cb4/FLAG7442c3ea8 [2019-11-26 02:43:01,399 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:43:01,400 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bd8f26ef-3b1d-4541-8afa-38c6d6f164f4/sv-benchmarks/c/loops/for_bounded_loop1.c [2019-11-26 02:43:01,405 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bd8f26ef-3b1d-4541-8afa-38c6d6f164f4/bin/ukojak/data/94014c6dd/4910e0e5a1c7457f9f8fc95c3af82cb4/FLAG7442c3ea8 [2019-11-26 02:43:01,821 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bd8f26ef-3b1d-4541-8afa-38c6d6f164f4/bin/ukojak/data/94014c6dd/4910e0e5a1c7457f9f8fc95c3af82cb4 [2019-11-26 02:43:01,823 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:43:01,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:43:01,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:43:01,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:43:01,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:43:01,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:43:01" (1/1) ... [2019-11-26 02:43:01,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a1aca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:01, skipping insertion in model container [2019-11-26 02:43:01,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:43:01" (1/1) ... [2019-11-26 02:43:01,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:43:01,853 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:43:02,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:43:02,055 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:43:02,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:43:02,138 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:43:02,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:02 WrapperNode [2019-11-26 02:43:02,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:43:02,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:43:02,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:43:02,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:43:02,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:02" (1/1) ... [2019-11-26 02:43:02,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:02" (1/1) ... [2019-11-26 02:43:02,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:43:02,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:43:02,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:43:02,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:43:02,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:02" (1/1) ... [2019-11-26 02:43:02,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:02" (1/1) ... [2019-11-26 02:43:02,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:02" (1/1) ... [2019-11-26 02:43:02,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:02" (1/1) ... [2019-11-26 02:43:02,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:02" (1/1) ... [2019-11-26 02:43:02,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:02" (1/1) ... [2019-11-26 02:43:02,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:02" (1/1) ... [2019-11-26 02:43:02,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:43:02,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:43:02,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:43:02,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:43:02,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bd8f26ef-3b1d-4541-8afa-38c6d6f164f4/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 02:43:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:43:02,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:43:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-26 02:43:02,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-26 02:43:02,414 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:43:02,414 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-26 02:43:02,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:43:02 BoogieIcfgContainer [2019-11-26 02:43:02,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:43:02,416 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:43:02,416 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:43:02,424 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:43:02,424 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:43:02" (1/1) ... [2019-11-26 02:43:02,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:43:02,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:02,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2019-11-26 02:43:02,466 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2019-11-26 02:43:02,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:43:02,468 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:02,600 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 02:43:02,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:02,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2019-11-26 02:43:02,745 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-11-26 02:43:02,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:43:02,746 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:02,899 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 02:43:03,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:03,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 28 transitions. [2019-11-26 02:43:03,134 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2019-11-26 02:43:03,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-26 02:43:03,139 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:03,290 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 02:43:03,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:03,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 27 transitions. [2019-11-26 02:43:03,373 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2019-11-26 02:43:03,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-26 02:43:03,374 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:43:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:43:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:43:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:43:03,514 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2019-11-26 02:43:03,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:43:03 ImpRootNode [2019-11-26 02:43:03,535 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:43:03,535 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:43:03,535 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:43:03,535 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:43:03,536 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:43:02" (3/4) ... [2019-11-26 02:43:03,537 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:43:03,575 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bd8f26ef-3b1d-4541-8afa-38c6d6f164f4/bin/ukojak/witness.graphml [2019-11-26 02:43:03,575 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:43:03,577 INFO L168 Benchmark]: Toolchain (without parser) took 1752.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 948.7 MB in the beginning and 1.0 GB in the end (delta: -90.8 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:03,578 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:43:03,579 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -187.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:03,579 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.22 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. [2019-11-26 02:43:03,579 INFO L168 Benchmark]: Boogie Preprocessor took 18.57 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:03,580 INFO L168 Benchmark]: RCFGBuilder took 226.57 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: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:03,581 INFO L168 Benchmark]: CodeCheck took 1119.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:03,581 INFO L168 Benchmark]: Witness Printer took 40.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:03,584 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 2 procedures, 17 locations, 1 error locations. Result: UNSAFE, OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 10 SDslu, 0 SDs, 0 SdLazy, 138 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 216 GetRequests, 196 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 1176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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 - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int i=0, x=0, y=0; [L15] int n=__VERIFIER_nondet_int(); [L16] COND FALSE !(!(n>0)) [L17] i=0 [L17] COND TRUE i