./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/alt_test.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_76d9d1d3-9799-4dce-8e8c-bcf8acd8a5b5/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_76d9d1d3-9799-4dce-8e8c-bcf8acd8a5b5/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_76d9d1d3-9799-4dce-8e8c-bcf8acd8a5b5/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_76d9d1d3-9799-4dce-8e8c-bcf8acd8a5b5/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/alt_test.i -s /tmp/vcloud-vcloud-master/worker/run_dir_76d9d1d3-9799-4dce-8e8c-bcf8acd8a5b5/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_76d9d1d3-9799-4dce-8e8c-bcf8acd8a5b5/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f0dc10cff0d4b9b6abcb3203593853156d0ff603 ..................................................................................................................................................................................................................................................... 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 0.2.0-69874e2 [2020-12-01 17:38:17,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:38:17,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:38:17,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:38:17,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:38:17,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:38:17,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:38:17,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:38:17,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:38:17,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:38:17,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:38:17,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:38:17,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:38:17,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:38:17,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:38:17,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:38:17,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:38:17,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:38:17,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:38:17,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:38:17,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:38:17,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:38:17,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:38:17,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:38:17,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:38:17,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:38:17,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:38:17,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:38:17,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:38:17,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:38:17,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:38:17,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:38:17,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:38:17,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:38:17,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:38:17,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:38:17,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:38:17,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:38:17,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:38:17,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:38:17,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:38:17,508 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_76d9d1d3-9799-4dce-8e8c-bcf8acd8a5b5/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 17:38:17,559 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:38:17,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:38:17,560 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:38:17,561 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:38:17,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:38:17,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:38:17,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:38:17,563 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:38:17,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:38:17,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:38:17,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:38:17,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:38:17,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:38:17,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:38:17,565 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:38:17,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:38:17,566 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:38:17,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:38:17,566 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:38:17,567 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:38:17,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:38:17,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:38:17,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:38:17,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:38:17,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:38:17,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:38:17,569 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:38:17,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:38:17,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:38:17,570 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_76d9d1d3-9799-4dce-8e8c-bcf8acd8a5b5/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_76d9d1d3-9799-4dce-8e8c-bcf8acd8a5b5/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0dc10cff0d4b9b6abcb3203593853156d0ff603 [2020-12-01 17:38:17,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:38:17,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:38:17,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:38:17,956 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:38:17,957 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:38:17,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_76d9d1d3-9799-4dce-8e8c-bcf8acd8a5b5/bin/ukojak/../../sv-benchmarks/c/ldv-regression/alt_test.i [2020-12-01 17:38:18,041 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76d9d1d3-9799-4dce-8e8c-bcf8acd8a5b5/bin/ukojak/data/991318785/afd9099ccfe84af8b4082eebe7bb2cc4/FLAG741a3f8fe [2020-12-01 17:38:18,757 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:38:18,758 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_76d9d1d3-9799-4dce-8e8c-bcf8acd8a5b5/sv-benchmarks/c/ldv-regression/alt_test.i [2020-12-01 17:38:18,786 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76d9d1d3-9799-4dce-8e8c-bcf8acd8a5b5/bin/ukojak/data/991318785/afd9099ccfe84af8b4082eebe7bb2cc4/FLAG741a3f8fe [2020-12-01 17:38:19,023 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_76d9d1d3-9799-4dce-8e8c-bcf8acd8a5b5/bin/ukojak/data/991318785/afd9099ccfe84af8b4082eebe7bb2cc4 [2020-12-01 17:38:19,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:38:19,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:38:19,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:38:19,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:38:19,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:38:19,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:38:19" (1/1) ... [2020-12-01 17:38:19,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c51fb79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:38:19, skipping insertion in model container [2020-12-01 17:38:19,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:38:19" (1/1) ... [2020-12-01 17:38:19,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:38:19,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:38:19,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:38:19,438 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:38:19,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:38:19,551 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:38:19,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:38:19 WrapperNode [2020-12-01 17:38:19,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:38:19,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:38:19,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:38:19,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:38:19,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:38:19" (1/1) ... [2020-12-01 17:38:19,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:38:19" (1/1) ... [2020-12-01 17:38:19,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:38:19,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:38:19,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:38:19,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:38:19,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:38:19" (1/1) ... [2020-12-01 17:38:19,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:38:19" (1/1) ... [2020-12-01 17:38:19,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:38:19" (1/1) ... [2020-12-01 17:38:19,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:38:19" (1/1) ... [2020-12-01 17:38:19,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:38:19" (1/1) ... [2020-12-01 17:38:19,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:38:19" (1/1) ... [2020-12-01 17:38:19,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:38:19" (1/1) ... [2020-12-01 17:38:19,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:38:19,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:38:19,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:38:19,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:38:19,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:38:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76d9d1d3-9799-4dce-8e8c-bcf8acd8a5b5/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:38:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 17:38:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:38:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 17:38:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure l_free [2020-12-01 17:38:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure l_free [2020-12-01 17:38:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 17:38:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:38:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:38:20,339 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:38:20,340 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-01 17:38:20,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:38:20 BoogieIcfgContainer [2020-12-01 17:38:20,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:38:20,396 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:38:20,396 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:38:20,408 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:38:20,409 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:38:20" (1/1) ... [2020-12-01 17:38:20,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:38:20,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:38:20,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-12-01 17:38:20,455 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-01 17:38:20,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 17:38:20,460 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:38:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:38:20,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:38:20,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:38:20,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 17 transitions. [2020-12-01 17:38:20,691 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-12-01 17:38:20,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 17:38:20,693 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:38:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:38:20,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:38:20,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:38:20,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 21 transitions. [2020-12-01 17:38:20,985 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2020-12-01 17:38:20,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 17:38:20,986 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:38:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:38:21,012 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:38:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:38:21,035 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:38:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:38:21,140 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:38:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:38:21,170 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:38:21,234 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2020-12-01 17:38:21,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:38:21 ImpRootNode [2020-12-01 17:38:21,293 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:38:21,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:38:21,297 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:38:21,297 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:38:21,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:38:20" (3/4) ... [2020-12-01 17:38:21,301 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 17:38:21,389 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_76d9d1d3-9799-4dce-8e8c-bcf8acd8a5b5/bin/ukojak/witness.graphml [2020-12-01 17:38:21,392 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:38:21,395 INFO L168 Benchmark]: Toolchain (without parser) took 2364.76 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 54.1 MB in the beginning and 69.7 MB in the end (delta: -15.6 MB). Peak memory consumption was 660.8 kB. Max. memory is 16.1 GB. [2020-12-01 17:38:21,397 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory was 41.0 MB in the beginning and 41.0 MB in the end (delta: 35.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:38:21,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 508.28 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 53.9 MB in the beginning and 67.2 MB in the end (delta: -13.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:38:21,400 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.31 ms. Allocated memory is still 100.7 MB. Free memory was 67.2 MB in the beginning and 65.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:38:21,401 INFO L168 Benchmark]: Boogie Preprocessor took 24.29 ms. Allocated memory is still 100.7 MB. Free memory was 65.5 MB in the beginning and 64.6 MB in the end (delta: 932.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:38:21,406 INFO L168 Benchmark]: RCFGBuilder took 689.41 ms. Allocated memory is still 100.7 MB. Free memory was 64.6 MB in the beginning and 42.0 MB in the end (delta: 22.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-01 17:38:21,407 INFO L168 Benchmark]: CodeCheck took 897.82 ms. Allocated memory is still 100.7 MB. Free memory was 79.4 MB in the beginning and 72.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:38:21,408 INFO L168 Benchmark]: Witness Printer took 95.13 ms. Allocated memory is still 100.7 MB. Free memory was 72.7 MB in the beginning and 69.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 17:38:21,421 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 16 SDslu, 20 SDs, 0 SdLazy, 46 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 255 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L518] int globalState = 0; [L529] void *retVal = malloc(size); [L530] COND TRUE retVal != ((void *)0) [L531] globalState=1 [L532] return retVal; [L523] int *a = (int*) l_malloc(sizeof(int)); [L524] CALL l_free(a) VAL [\old(globalState)=1, globalState=1] [L535] COND TRUE ptr!=((void *)0) VAL [\old(globalState)=1, globalState=1] [L535] (globalState == 1) ? (0) : __blast_assert () VAL [\old(globalState)=1, globalState=1] [L536] globalState = 0 [L524] RET l_free(a) VAL [globalState=0] [L525] CALL l_free(a) VAL [\old(globalState)=0, globalState=0] [L535] COND TRUE ptr!=((void *)0) VAL [\old(globalState)=0, globalState=0] [L535] (globalState == 1) ? (0) : __blast_assert () VAL [\old(globalState)=0, globalState=0] [L3] __assert_fail("0", "alt_test.i", 3, "reach_error") VAL [\old(globalState)=0, globalState=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory was 41.0 MB in the beginning and 41.0 MB in the end (delta: 35.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 508.28 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 53.9 MB in the beginning and 67.2 MB in the end (delta: -13.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.31 ms. Allocated memory is still 100.7 MB. Free memory was 67.2 MB in the beginning and 65.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.29 ms. Allocated memory is still 100.7 MB. Free memory was 65.5 MB in the beginning and 64.6 MB in the end (delta: 932.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 689.41 ms. Allocated memory is still 100.7 MB. Free memory was 64.6 MB in the beginning and 42.0 MB in the end (delta: 22.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * CodeCheck took 897.82 ms. Allocated memory is still 100.7 MB. Free memory was 79.4 MB in the beginning and 72.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Witness Printer took 95.13 ms. Allocated memory is still 100.7 MB. Free memory was 72.7 MB in the beginning and 69.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...