./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_add-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d631714f-bc18-4c1a-963a-9c13b95c5b1a/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d631714f-bc18-4c1a-963a-9c13b95c5b1a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d631714f-bc18-4c1a-963a-9c13b95c5b1a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d631714f-bc18-4c1a-963a-9c13b95c5b1a/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_add-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d631714f-bc18-4c1a-963a-9c13b95c5b1a/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d631714f-bc18-4c1a-963a-9c13b95c5b1a/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 278390a66d79c26df0bb9007834f9da647c0b479 ................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 11:24:25,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:24:25,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:24:25,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:24:25,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:24:25,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:24:25,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:24:25,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:24:25,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:24:25,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:24:25,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:24:25,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:24:25,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:24:25,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:24:25,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:24:25,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:24:25,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:24:25,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:24:25,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:24:25,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:24:25,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:24:25,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:24:25,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:24:25,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:24:25,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:24:25,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:24:25,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:24:25,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:24:25,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:24:25,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:24:25,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:24:25,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:24:25,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:24:25,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:24:25,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:24:25,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:24:25,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:24:25,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:24:25,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:24:25,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:24:25,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:24:25,296 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d631714f-bc18-4c1a-963a-9c13b95c5b1a/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-20 11:24:25,315 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:24:25,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:24:25,316 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 11:24:25,316 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 11:24:25,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:24:25,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:24:25,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:24:25,317 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:24:25,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:24:25,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:24:25,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:24:25,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 11:24:25,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:24:25,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 11:24:25,319 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:24:25,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:24:25,320 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:24:25,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 11:24:25,320 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 11:24:25,320 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 11:24:25,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:24:25,321 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:24:25,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 11:24:25,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:24:25,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:24:25,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 11:24:25,322 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 11:24:25,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 11:24:25,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 11:24:25,322 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d631714f-bc18-4c1a-963a-9c13b95c5b1a/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 -> 278390a66d79c26df0bb9007834f9da647c0b479 [2019-11-20 11:24:25,489 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:24:25,500 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:24:25,503 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:24:25,504 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:24:25,504 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:24:25,505 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d631714f-bc18-4c1a-963a-9c13b95c5b1a/bin/ukojak/../../sv-benchmarks/c/ldv-sets/test_add-1.i [2019-11-20 11:24:25,554 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d631714f-bc18-4c1a-963a-9c13b95c5b1a/bin/ukojak/data/19b5698f1/e3c55a9c605746eb82621544b17c1cba/FLAG2ecb58bd1 [2019-11-20 11:24:26,002 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:24:26,002 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d631714f-bc18-4c1a-963a-9c13b95c5b1a/sv-benchmarks/c/ldv-sets/test_add-1.i [2019-11-20 11:24:26,017 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d631714f-bc18-4c1a-963a-9c13b95c5b1a/bin/ukojak/data/19b5698f1/e3c55a9c605746eb82621544b17c1cba/FLAG2ecb58bd1 [2019-11-20 11:24:26,332 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d631714f-bc18-4c1a-963a-9c13b95c5b1a/bin/ukojak/data/19b5698f1/e3c55a9c605746eb82621544b17c1cba [2019-11-20 11:24:26,335 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:24:26,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:24:26,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:24:26,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:24:26,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:24:26,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:24:26" (1/1) ... [2019-11-20 11:24:26,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d5efd93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:26, skipping insertion in model container [2019-11-20 11:24:26,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:24:26" (1/1) ... [2019-11-20 11:24:26,349 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:24:26,396 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:24:26,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:24:26,911 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:24:26,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:24:27,023 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:24:27,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:27 WrapperNode [2019-11-20 11:24:27,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:24:27,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:24:27,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:24:27,026 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:24:27,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:27" (1/1) ... [2019-11-20 11:24:27,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:27" (1/1) ... [2019-11-20 11:24:27,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:24:27,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:24:27,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:24:27,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:24:27,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:27" (1/1) ... [2019-11-20 11:24:27,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:27" (1/1) ... [2019-11-20 11:24:27,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:27" (1/1) ... [2019-11-20 11:24:27,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:27" (1/1) ... [2019-11-20 11:24:27,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:27" (1/1) ... [2019-11-20 11:24:27,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:27" (1/1) ... [2019-11-20 11:24:27,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:27" (1/1) ... [2019-11-20 11:24:27,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:24:27,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:24:27,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:24:27,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:24:27,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d631714f-bc18-4c1a-963a-9c13b95c5b1a/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 11:24:27,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 11:24:27,221 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 11:24:27,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 11:24:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 11:24:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 11:24:27,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 11:24:27,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 11:24:27,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2019-11-20 11:24:27,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2019-11-20 11:24:27,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 11:24:27,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 11:24:27,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:24:27,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:24:27,613 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:24:27,613 INFO L285 CfgBuilder]: Removed 13 assume(true) statements. [2019-11-20 11:24:27,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:24:27 BoogieIcfgContainer [2019-11-20 11:24:27,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:24:27,615 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 11:24:27,615 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 11:24:27,625 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 11:24:27,625 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:24:27" (1/1) ... [2019-11-20 11:24:27,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:24:27,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:24:27,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2019-11-20 11:24:27,670 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2019-11-20 11:24:27,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 11:24:27,675 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:24:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:24:27,880 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 11:24:27,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:24:27,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2019-11-20 11:24:27,954 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2019-11-20 11:24:27,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 11:24:27,955 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:24:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:24:28,042 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 11:24:28,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:24:28,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2019-11-20 11:24:28,093 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2019-11-20 11:24:28,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 11:24:28,094 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:24:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:24:28,376 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 11:24:28,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:24:28,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 30 states and 37 transitions. [2019-11-20 11:24:28,723 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2019-11-20 11:24:28,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 11:24:28,724 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:24:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:24:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:24:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:24:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:24:29,009 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2019-11-20 11:24:29,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 11:24:29 ImpRootNode [2019-11-20 11:24:29,057 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 11:24:29,057 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:24:29,058 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:24:29,058 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:24:29,058 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:24:27" (3/4) ... [2019-11-20 11:24:29,061 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 11:24:29,151 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d631714f-bc18-4c1a-963a-9c13b95c5b1a/bin/ukojak/witness.graphml [2019-11-20 11:24:29,152 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:24:29,154 INFO L168 Benchmark]: Toolchain (without parser) took 2817.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 938.0 MB in the beginning and 992.8 MB in the end (delta: -54.8 MB). Peak memory consumption was 112.5 MB. Max. memory is 11.5 GB. [2019-11-20 11:24:29,155 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:24:29,155 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -206.4 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2019-11-20 11:24:29,156 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:24:29,157 INFO L168 Benchmark]: Boogie Preprocessor took 53.12 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 11:24:29,157 INFO L168 Benchmark]: RCFGBuilder took 469.13 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: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. [2019-11-20 11:24:29,158 INFO L168 Benchmark]: CodeCheck took 1442.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 998.1 MB in the end (delta: 108.3 MB). Peak memory consumption was 108.3 MB. Max. memory is 11.5 GB. [2019-11-20 11:24:29,158 INFO L168 Benchmark]: Witness Printer took 94.91 ms. Allocated memory is still 1.2 GB. Free memory was 998.1 MB in the beginning and 992.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 11:24:29,165 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 3 procedures, 20 locations, 1 error locations. Result: UNSAFE, OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 32 SDslu, 16 SDs, 0 SdLazy, 128 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 315 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 3245 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 7/13 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: 654]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L649] struct ldv_list_head s1 = { &(s1), &(s1) }; [L652] int j = __VERIFIER_nondet_int(); [L620] CALL, EXPR ldv_is_in_set(new, s) VAL [\old(e)=-2147477707, s={5:0}, s1={5:0}] [L638] struct ldv_list_element *m; [L639] EXPR (s)->next [L639] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L639] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [\old(e)=-2147477707, __mptr={5:0}, e=-2147477707, m={5:-4}, s={5:0}, s={5:0}, s1={5:0}] [L639] COND FALSE !(&m->list != (s)) [L644] return 0; VAL [\old(e)=-2147477707, \result=0, __mptr={5:0}, e=-2147477707, m={5:-4}, s={5:0}, s={5:0}, s1={5:0}] [L620] RET, EXPR ldv_is_in_set(new, s) VAL [s1={5:0}] [L620] COND TRUE !ldv_is_in_set(new, s) [L621] struct ldv_list_element *le; [L563] void *ptr = malloc(size); [L565] return ptr; [L622] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L623] le->e = new [L592] EXPR head->next VAL [s1={5:0}] [L592] CALL __ldv_list_add(new, head, head->next) VAL [new={-1:4}, next={5:0}, prev={5:0}, s1={5:0}] [L580] next->prev = new [L581] new->next = next [L582] new->prev = prev [L583] prev->next = new [L592] RET __ldv_list_add(new, head, head->next) VAL [s1={5:0}] [L654] CALL ldv_is_in_set(j, &s1) VAL [\old(e)=-2147477707, s={5:0}, s1={5:0}] [L638] struct ldv_list_element *m; [L639] EXPR (s)->next [L639] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L639] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [\old(e)=-2147477707, __mptr={-1:4}, e=-2147477707, m={-1:0}, s={5:0}, s={5:0}, s1={5:0}] [L639] COND TRUE &m->list != (s) [L640] EXPR m->e VAL [\old(e)=-2147477707, __mptr={-1:4}, e=-2147477707, m={-1:0}, m->e=-2147477707, s={5:0}, s={5:0}, s1={5:0}] [L640] COND TRUE m->e == e [L641] return 1; VAL [\old(e)=-2147477707, \result=1, __mptr={-1:4}, e=-2147477707, m={-1:0}, s={5:0}, s={5:0}, s1={5:0}] [L654] RET ldv_is_in_set(j, &s1) VAL [s1={5:0}] [L654] COND TRUE ldv_is_in_set(j, &s1) [L654] __VERIFIER_error() VAL [s1={5:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 689.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -206.4 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.12 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 469.13 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: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. * CodeCheck took 1442.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 998.1 MB in the end (delta: 108.3 MB). Peak memory consumption was 108.3 MB. Max. memory is 11.5 GB. * Witness Printer took 94.91 ms. Allocated memory is still 1.2 GB. Free memory was 998.1 MB in the beginning and 992.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...