./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-01-2.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_687799c4-91a7-42d2-94f4-0f86c7a1e03c/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_687799c4-91a7-42d2-94f4-0f86c7a1e03c/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_687799c4-91a7-42d2-94f4-0f86c7a1e03c/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_687799c4-91a7-42d2-94f4-0f86c7a1e03c/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-01-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_687799c4-91a7-42d2-94f4-0f86c7a1e03c/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_687799c4-91a7-42d2-94f4-0f86c7a1e03c/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 2ea18b6ba0d977117db11fbdff34c486def646c3 .............................................................................................................................................................................................................................................................................................................................................................................................. 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 16:40:11,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:40:11,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:40:11,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:40:11,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:40:11,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:40:11,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:40:11,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:40:11,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:40:11,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:40:11,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:40:11,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:40:11,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:40:11,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:40:11,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:40:11,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:40:11,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:40:11,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:40:11,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:40:11,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:40:11,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:40:11,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:40:11,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:40:11,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:40:11,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:40:11,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:40:11,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:40:11,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:40:11,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:40:11,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:40:11,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:40:11,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:40:11,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:40:11,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:40:11,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:40:11,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:40:11,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:40:11,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:40:11,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:40:11,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:40:11,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:40:11,391 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_687799c4-91a7-42d2-94f4-0f86c7a1e03c/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:40:11,449 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:40:11,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:40:11,452 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:40:11,453 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:40:11,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:40:11,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:40:11,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:40:11,455 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:40:11,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:40:11,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:40:11,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:40:11,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:40:11,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:40:11,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:40:11,458 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:40:11,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:40:11,459 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:40:11,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:40:11,460 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:40:11,460 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:40:11,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:40:11,461 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:40:11,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:40:11,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:40:11,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:40:11,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:40:11,462 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:40:11,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:40:11,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:40:11,465 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_687799c4-91a7-42d2-94f4-0f86c7a1e03c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_687799c4-91a7-42d2-94f4-0f86c7a1e03c/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ea18b6ba0d977117db11fbdff34c486def646c3 [2020-12-01 16:40:11,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:40:11,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:40:11,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:40:11,945 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:40:11,947 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:40:11,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_687799c4-91a7-42d2-94f4-0f86c7a1e03c/bin/ukojak/../../sv-benchmarks/c/forester-heap/sll-01-2.i [2020-12-01 16:40:12,043 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_687799c4-91a7-42d2-94f4-0f86c7a1e03c/bin/ukojak/data/a573a14e3/847a055e0f0542038e2a37058ddbe007/FLAG5b094139d [2020-12-01 16:40:12,766 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:40:12,767 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_687799c4-91a7-42d2-94f4-0f86c7a1e03c/sv-benchmarks/c/forester-heap/sll-01-2.i [2020-12-01 16:40:12,784 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_687799c4-91a7-42d2-94f4-0f86c7a1e03c/bin/ukojak/data/a573a14e3/847a055e0f0542038e2a37058ddbe007/FLAG5b094139d [2020-12-01 16:40:13,049 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_687799c4-91a7-42d2-94f4-0f86c7a1e03c/bin/ukojak/data/a573a14e3/847a055e0f0542038e2a37058ddbe007 [2020-12-01 16:40:13,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:40:13,064 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:40:13,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:40:13,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:40:13,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:40:13,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:40:13" (1/1) ... [2020-12-01 16:40:13,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@754dc045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:40:13, skipping insertion in model container [2020-12-01 16:40:13,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:40:13" (1/1) ... [2020-12-01 16:40:13,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:40:13,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:40:13,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:40:13,788 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:40:13,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:40:13,907 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:40:13,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:40:13 WrapperNode [2020-12-01 16:40:13,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:40:13,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:40:13,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:40:13,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:40:13,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:40:13" (1/1) ... [2020-12-01 16:40:13,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:40:13" (1/1) ... [2020-12-01 16:40:14,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:40:14,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:40:14,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:40:14,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:40:14,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:40:13" (1/1) ... [2020-12-01 16:40:14,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:40:13" (1/1) ... [2020-12-01 16:40:14,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:40:13" (1/1) ... [2020-12-01 16:40:14,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:40:13" (1/1) ... [2020-12-01 16:40:14,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:40:13" (1/1) ... [2020-12-01 16:40:14,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:40:13" (1/1) ... [2020-12-01 16:40:14,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:40:13" (1/1) ... [2020-12-01 16:40:14,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:40:14,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:40:14,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:40:14,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:40:14,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:40:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_687799c4-91a7-42d2-94f4-0f86c7a1e03c/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 16:40:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-12-01 16:40:14,187 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-12-01 16:40:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 16:40:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-01 16:40:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:40:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-01 16:40:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 16:40:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:40:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:40:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:40:15,423 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:40:15,423 INFO L298 CfgBuilder]: Removed 34 assume(true) statements. [2020-12-01 16:40:15,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:40:15 BoogieIcfgContainer [2020-12-01 16:40:15,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:40:15,428 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:40:15,428 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:40:15,440 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:40:15,440 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:40:15" (1/1) ... [2020-12-01 16:40:15,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:40:15,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:15,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 79 states and 136 transitions. [2020-12-01 16:40:15,493 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 136 transitions. [2020-12-01 16:40:15,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:40:15,498 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:40:15,652 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 16:40:15,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:15,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 63 states and 103 transitions. [2020-12-01 16:40:15,680 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 103 transitions. [2020-12-01 16:40:15,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:40:15,681 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:40:15,821 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 16:40:15,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:15,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 62 states and 99 transitions. [2020-12-01 16:40:15,854 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 99 transitions. [2020-12-01 16:40:15,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 16:40:15,855 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:40:15,946 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 16:40:15,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:15,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 61 states and 93 transitions. [2020-12-01 16:40:15,972 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 93 transitions. [2020-12-01 16:40:15,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:40:15,973 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:40:16,021 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 16:40:16,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:16,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 65 states and 97 transitions. [2020-12-01 16:40:16,181 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 97 transitions. [2020-12-01 16:40:16,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 16:40:16,185 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:40:16,272 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 16:40:16,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:16,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 64 states and 93 transitions. [2020-12-01 16:40:16,296 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 93 transitions. [2020-12-01 16:40:16,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:40:16,297 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:40:16,351 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 16:40:16,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:16,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 66 states and 95 transitions. [2020-12-01 16:40:16,398 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2020-12-01 16:40:16,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:40:16,403 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:40:16,486 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 16:40:16,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:16,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 65 states and 91 transitions. [2020-12-01 16:40:16,533 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 91 transitions. [2020-12-01 16:40:16,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 16:40:16,541 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:40:16,614 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 16:40:16,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:16,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 67 states and 92 transitions. [2020-12-01 16:40:16,635 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 92 transitions. [2020-12-01 16:40:16,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 16:40:16,635 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:40:16,755 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 16:40:16,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:16,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 66 states and 89 transitions. [2020-12-01 16:40:16,809 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 89 transitions. [2020-12-01 16:40:16,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 16:40:16,810 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:40:17,328 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 16:40:19,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:19,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 77 states and 105 transitions. [2020-12-01 16:40:19,385 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 105 transitions. [2020-12-01 16:40:19,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 16:40:19,387 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:40:19,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 16:40:19,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:19,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 76 states and 103 transitions. [2020-12-01 16:40:19,633 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 103 transitions. [2020-12-01 16:40:19,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 16:40:19,634 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:40:20,138 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 16:40:21,000 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-12-01 16:40:23,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:23,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 90 states and 122 transitions. [2020-12-01 16:40:23,747 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 122 transitions. [2020-12-01 16:40:23,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 16:40:23,749 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:40:23,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:40:24,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:24,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 84 states and 113 transitions. [2020-12-01 16:40:24,296 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 113 transitions. [2020-12-01 16:40:24,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 16:40:24,297 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:40:24,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:40:28,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:28,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 94 states and 131 transitions. [2020-12-01 16:40:28,274 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 131 transitions. [2020-12-01 16:40:28,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 16:40:28,275 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:40:28,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:40:28,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:28,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 95 states and 131 transitions. [2020-12-01 16:40:28,613 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 131 transitions. [2020-12-01 16:40:28,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-01 16:40:28,614 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:40:29,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:40:33,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:33,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 103 states and 143 transitions. [2020-12-01 16:40:33,649 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 143 transitions. [2020-12-01 16:40:33,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-01 16:40:33,650 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:40:33,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:40:36,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:36,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 114 states and 160 transitions. [2020-12-01 16:40:36,832 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 160 transitions. [2020-12-01 16:40:36,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-01 16:40:36,833 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:40:37,445 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:40:37,672 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-12-01 16:40:39,101 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2020-12-01 16:40:44,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:40:44,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 124 states and 182 transitions. [2020-12-01 16:40:44,112 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 182 transitions. [2020-12-01 16:40:44,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-01 16:40:44,113 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:40:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:40:44,150 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:40:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:40:44,183 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:40:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:40:44,304 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:40:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:40:44,360 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:40:45,332 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 19 iterations. [2020-12-01 16:40:45,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:40:45 ImpRootNode [2020-12-01 16:40:45,398 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:40:45,399 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:40:45,399 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:40:45,399 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:40:45,401 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:40:15" (3/4) ... [2020-12-01 16:40:45,403 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 16:40:45,473 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_687799c4-91a7-42d2-94f4-0f86c7a1e03c/bin/ukojak/witness.graphml [2020-12-01 16:40:45,473 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:40:45,475 INFO L168 Benchmark]: Toolchain (without parser) took 32410.31 ms. Allocated memory was 88.1 MB in the beginning and 343.9 MB in the end (delta: 255.9 MB). Free memory was 57.0 MB in the beginning and 126.7 MB in the end (delta: -69.8 MB). Peak memory consumption was 185.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:40:45,476 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 88.1 MB. Free memory was 47.9 MB in the beginning and 47.9 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:40:45,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 842.94 ms. Allocated memory is still 88.1 MB. Free memory was 56.8 MB in the beginning and 51.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:40:45,477 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.58 ms. Allocated memory is still 88.1 MB. Free memory was 51.5 MB in the beginning and 49.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:40:45,478 INFO L168 Benchmark]: Boogie Preprocessor took 86.78 ms. Allocated memory is still 88.1 MB. Free memory was 49.1 MB in the beginning and 47.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:40:45,498 INFO L168 Benchmark]: RCFGBuilder took 1336.75 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 47.0 MB in the beginning and 75.8 MB in the end (delta: -28.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:40:45,499 INFO L168 Benchmark]: CodeCheck took 29970.87 ms. Allocated memory was 113.2 MB in the beginning and 343.9 MB in the end (delta: 230.7 MB). Free memory was 75.8 MB in the beginning and 129.9 MB in the end (delta: -54.1 MB). Peak memory consumption was 176.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:40:45,500 INFO L168 Benchmark]: Witness Printer took 74.36 ms. Allocated memory is still 343.9 MB. Free memory was 129.9 MB in the beginning and 126.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:40:45,504 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, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.8s, OverallIterations: 19, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3512816 SDtfs, 630616 SDslu, 398016 SDs, 0 SdLazy, 2289918 SolverSat, 1015058 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3203 GetRequests, 2949 SyntacticMatches, 32 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17202 ImplicationChecksByTransitivity, 25.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 408 NumberOfCodeBlocks, 408 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 358 ConstructedInterpolants, 0 QuantifiedInterpolants, 79354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 14 PerfectInterpolantSequences, 7/12 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: 992]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1002] SLL* list = malloc(sizeof(SLL)); [L1003] list->next = ((void*)0) [L1004] COND FALSE !(!(list != ((void*)0))) [L1004] COND FALSE !(__VERIFIER_nondet_int()) [L1004] list->inner = malloc(sizeof(SLL)) [L1004] EXPR list->inner [L1004] list->inner->next = ((void*)0) [L1004] EXPR list->inner [L1004] list->inner->inner = ((void*)0) [L1004] EXPR list->inner [L1004] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L1004] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L1006] SLL* end = list; [L1009] COND FALSE !(__VERIFIER_nondet_int()) [L1019] end = ((void*)0) [L1020] end = list [L1023] COND FALSE !(!(((void*)0) != end)) [L1025] COND TRUE ((void*)0) != end [L1027] int len = 0; [L1028] EXPR end->inner [L1028] SLL* inner = end->inner; [L1029] COND TRUE ((void*)0) != inner [L1031] COND TRUE len == 0 [L1032] len = 1 [L1035] COND FALSE !(!(((void*)0) != inner)) [L1036] EXPR inner->inner [L1036] COND FALSE !(!(((void*)0) == inner->inner)) [L1037] EXPR inner->next [L1037] COND FALSE !(!(((void*)0) == inner->next)) [L1038] EXPR inner->inner [L1038] inner = inner->inner [L1039] COND TRUE len == 1 [L1040] EXPR inner->inner [L1040] inner = inner->inner [L1029] COND TRUE ((void*)0) != inner [L1031] COND FALSE !(len == 0) [L1034] len = 2 [L1035] COND FALSE !(!(((void*)0) != inner)) [L1036] EXPR inner->inner [L1036] COND TRUE !(((void*)0) == inner->inner) [L1036] CALL reach_error() [L992] COND FALSE !(0) [L992] __assert_fail ("0", "sll-01-2.c", 12, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 88.1 MB. Free memory was 47.9 MB in the beginning and 47.9 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 842.94 ms. Allocated memory is still 88.1 MB. Free memory was 56.8 MB in the beginning and 51.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.58 ms. Allocated memory is still 88.1 MB. Free memory was 51.5 MB in the beginning and 49.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.78 ms. Allocated memory is still 88.1 MB. Free memory was 49.1 MB in the beginning and 47.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1336.75 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 47.0 MB in the beginning and 75.8 MB in the end (delta: -28.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. * CodeCheck took 29970.87 ms. Allocated memory was 113.2 MB in the beginning and 343.9 MB in the end (delta: 230.7 MB). Free memory was 75.8 MB in the beginning and 129.9 MB in the end (delta: -54.1 MB). Peak memory consumption was 176.4 MB. Max. memory is 16.1 GB. * Witness Printer took 74.36 ms. Allocated memory is still 343.9 MB. Free memory was 129.9 MB in the beginning and 126.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...