./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/nested5-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b9b1fb67-dbdf-469e-b296-0e45c98d2449/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b9b1fb67-dbdf-469e-b296-0e45c98d2449/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b9b1fb67-dbdf-469e-b296-0e45c98d2449/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b9b1fb67-dbdf-469e-b296-0e45c98d2449/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/nested5-1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b9b1fb67-dbdf-469e-b296-0e45c98d2449/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b9b1fb67-dbdf-469e-b296-0e45c98d2449/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 a1f0fc7e11527245c3cf532e554dc105b5fd8e7e ..................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 10:12:52,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:12:52,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:12:52,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:12:52,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:12:52,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:12:52,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:12:52,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:12:52,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:12:52,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:12:52,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:12:52,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:12:52,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:12:52,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:12:52,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:12:52,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:12:52,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:12:52,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:12:52,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:12:52,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:12:52,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:12:52,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:12:52,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:12:52,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:12:52,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:12:52,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:12:52,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:12:52,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:12:52,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:12:52,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:12:52,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:12:52,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:12:52,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:12:52,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:12:52,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:12:52,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:12:52,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:12:52,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:12:52,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:12:52,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:12:52,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:12:52,573 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b9b1fb67-dbdf-469e-b296-0e45c98d2449/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-10-22 10:12:52,582 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:12:52,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:12:52,583 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:12:52,583 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:12:52,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:12:52,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:12:52,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:12:52,584 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:12:52,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:12:52,585 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:12:52,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:12:52,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:12:52,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:12:52,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:12:52,585 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:12:52,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:12:52,586 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:12:52,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:12:52,586 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:12:52,586 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:12:52,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:12:52,587 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:12:52,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:12:52,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:12:52,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:12:52,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:12:52,588 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:12:52,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:12:52,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:12:52,588 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/working_dir_b9b1fb67-dbdf-469e-b296-0e45c98d2449/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 -> a1f0fc7e11527245c3cf532e554dc105b5fd8e7e [2019-10-22 10:12:52,620 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:12:52,630 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:12:52,632 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:12:52,634 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:12:52,634 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:12:52,634 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b9b1fb67-dbdf-469e-b296-0e45c98d2449/bin/ukojak/../../sv-benchmarks/c/loops-crafted-1/nested5-1.c [2019-10-22 10:12:52,683 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b9b1fb67-dbdf-469e-b296-0e45c98d2449/bin/ukojak/data/dba83b663/f47b6ce072cd41aaa219fc1f42f5e2da/FLAG7ea54e2a0 [2019-10-22 10:12:53,090 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:12:53,091 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b9b1fb67-dbdf-469e-b296-0e45c98d2449/sv-benchmarks/c/loops-crafted-1/nested5-1.c [2019-10-22 10:12:53,096 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b9b1fb67-dbdf-469e-b296-0e45c98d2449/bin/ukojak/data/dba83b663/f47b6ce072cd41aaa219fc1f42f5e2da/FLAG7ea54e2a0 [2019-10-22 10:12:53,468 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b9b1fb67-dbdf-469e-b296-0e45c98d2449/bin/ukojak/data/dba83b663/f47b6ce072cd41aaa219fc1f42f5e2da [2019-10-22 10:12:53,471 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:12:53,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:12:53,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:12:53,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:12:53,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:12:53,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:12:53" (1/1) ... [2019-10-22 10:12:53,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b48695b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:53, skipping insertion in model container [2019-10-22 10:12:53,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:12:53" (1/1) ... [2019-10-22 10:12:53,489 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:12:53,505 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:12:53,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:12:53,630 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:12:53,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:12:53,708 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:12:53,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:53 WrapperNode [2019-10-22 10:12:53,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:12:53,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:12:53,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:12:53,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:12:53,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:53" (1/1) ... [2019-10-22 10:12:53,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:53" (1/1) ... [2019-10-22 10:12:53,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:12:53,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:12:53,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:12:53,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:12:53,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:53" (1/1) ... [2019-10-22 10:12:53,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:53" (1/1) ... [2019-10-22 10:12:53,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:53" (1/1) ... [2019-10-22 10:12:53,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:53" (1/1) ... [2019-10-22 10:12:53,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:53" (1/1) ... [2019-10-22 10:12:53,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:53" (1/1) ... [2019-10-22 10:12:53,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:53" (1/1) ... [2019-10-22 10:12:53,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:12:53,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:12:53,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:12:53,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:12:53,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b9b1fb67-dbdf-469e-b296-0e45c98d2449/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 [2019-10-22 10:12:53,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:12:53,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:12:53,994 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:12:53,994 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-10-22 10:12:53,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:12:53 BoogieIcfgContainer [2019-10-22 10:12:53,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:12:53,996 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:12:53,996 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:12:54,006 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:12:54,007 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:12:53" (1/1) ... [2019-10-22 10:12:54,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:12:54,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:54,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 11 states and 16 transitions. [2019-10-22 10:12:54,079 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 16 transitions. [2019-10-22 10:12:54,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 10:12:54,082 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:54,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:54,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:54,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2019-10-22 10:12:54,298 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2019-10-22 10:12:54,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 10:12:54,298 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:54,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:54,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:54,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 13 states and 17 transitions. [2019-10-22 10:12:54,427 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2019-10-22 10:12:54,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:12:54,427 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:54,489 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:54,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:54,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2019-10-22 10:12:54,544 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2019-10-22 10:12:54,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:12:54,544 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:54,613 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:54,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:54,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2019-10-22 10:12:54,675 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2019-10-22 10:12:54,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:12:54,675 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:54,759 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:54,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:54,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2019-10-22 10:12:54,826 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2019-10-22 10:12:54,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 10:12:54,827 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:54,921 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:55,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:55,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2019-10-22 10:12:55,006 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-10-22 10:12:55,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 10:12:55,008 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:55,156 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:55,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:55,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2019-10-22 10:12:55,241 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-10-22 10:12:55,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 10:12:55,242 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:55,394 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:55,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:55,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2019-10-22 10:12:55,487 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-10-22 10:12:55,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 10:12:55,487 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:55,660 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:55,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:55,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2019-10-22 10:12:55,761 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2019-10-22 10:12:55,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 10:12:55,762 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:55,964 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:56,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:56,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2019-10-22 10:12:56,055 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-10-22 10:12:56,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 10:12:56,055 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:56,412 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:56,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:56,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2019-10-22 10:12:56,659 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2019-10-22 10:12:56,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 10:12:56,660 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:56,861 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 11 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:57,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:57,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2019-10-22 10:12:57,128 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-10-22 10:12:57,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 10:12:57,129 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 13 iterations. [2019-10-22 10:12:57,136 INFO L771 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-10-22 10:12:57,179 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:12:57,182 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:12:57,182 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:12:57,182 INFO L575 CodeCheckObserver]: Invariant with dag size 58 [2019-10-22 10:12:57,189 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:12:57,191 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:12:57,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:12:57 ImpRootNode [2019-10-22 10:12:57,193 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:12:57,193 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:12:57,194 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:12:57,194 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:12:57,194 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:12:53" (3/4) ... [2019-10-22 10:12:57,197 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 10:12:57,204 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 10:12:57,205 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-10-22 10:12:57,205 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 10:12:57,250 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b9b1fb67-dbdf-469e-b296-0e45c98d2449/bin/ukojak/witness.graphml [2019-10-22 10:12:57,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:12:57,252 INFO L168 Benchmark]: Toolchain (without parser) took 3779.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 941.9 MB in the beginning and 948.3 MB in the end (delta: -6.3 MB). Peak memory consumption was 137.9 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:57,252 INFO L168 Benchmark]: CDTParser took 0.17 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. [2019-10-22 10:12:57,253 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -197.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:57,253 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.65 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:57,254 INFO L168 Benchmark]: Boogie Preprocessor took 14.97 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:57,254 INFO L168 Benchmark]: RCFGBuilder took 242.75 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: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:57,254 INFO L168 Benchmark]: CodeCheck took 3197.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 953.1 MB in the end (delta: 157.7 MB). Peak memory consumption was 157.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:57,255 INFO L168 Benchmark]: Witness Printer took 56.55 ms. Allocated memory is still 1.2 GB. Free memory was 953.1 MB in the beginning and 948.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:57,257 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, 11 locations, 1 error locations. Result: SAFE, OverallTime: 3.1s, OverallIterations: 13, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 26624 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 24596 SolverSat, 24580 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1202 GetRequests, 1031 SyntacticMatches, 119 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2388 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 9358 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 1 PerfectInterpolantSequences, 11/286 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: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((((((((((!(4294967296 * ((v + v / 4 * -4) / 4294967296) + 4 * (v / 4) == v) && 10 <= v) && v / 4294967296 <= 0) || (0 <= v && v <= 0)) || (v <= 2 && 1 < v)) || (v <= 5 && 4 < v)) || (v <= 9 && 8 < v)) || (v <= 7 && 6 < v)) || (v <= 8 && 7 < v)) || (0 < v && v <= 1)) || (v <= 3 && 2 < v)) || (v <= 4 && 3 < v)) || (5 < v && v <= 6) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 * 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 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 235.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -197.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.65 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.97 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 242.75 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: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * CodeCheck took 3197.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 953.1 MB in the end (delta: 157.7 MB). Peak memory consumption was 157.7 MB. Max. memory is 11.5 GB. * Witness Printer took 56.55 ms. Allocated memory is still 1.2 GB. Free memory was 953.1 MB in the beginning and 948.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...