./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test22-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2119f84f-9e53-498e-be6d-d54462da29a1/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2119f84f-9e53-498e-be6d-d54462da29a1/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2119f84f-9e53-498e-be6d-d54462da29a1/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2119f84f-9e53-498e-be6d-d54462da29a1/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test22-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2119f84f-9e53-498e-be6d-d54462da29a1/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2119f84f-9e53-498e-be6d-d54462da29a1/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 a615535fdf39447351d30c32f7932e942abe07a9 .................................................................................................................................................................................................................................................................. 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-a4ecdab [2020-11-28 04:38:28,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:38:28,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:38:28,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:38:28,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:38:28,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:38:28,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:38:28,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:38:28,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:38:28,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:38:28,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:38:28,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:38:28,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:38:28,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:38:28,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:38:28,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:38:28,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:38:28,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:38:28,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:38:28,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:38:28,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:38:28,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:38:28,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:38:28,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:38:28,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:38:28,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:38:28,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:38:28,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:38:28,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:38:28,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:38:28,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:38:28,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:38:28,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:38:28,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:38:28,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:38:28,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:38:28,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:38:28,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:38:28,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:38:28,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:38:28,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:38:28,529 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2119f84f-9e53-498e-be6d-d54462da29a1/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:38:28,566 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:38:28,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:38:28,568 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:38:28,568 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:38:28,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:38:28,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:38:28,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:38:28,570 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:38:28,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:38:28,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:38:28,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:38:28,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:38:28,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:38:28,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:38:28,572 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:38:28,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:38:28,572 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:38:28,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:38:28,573 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:38:28,573 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:38:28,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:38:28,573 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:38:28,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:38:28,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:38:28,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:38:28,574 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:38:28,574 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:38:28,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:38:28,574 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:38:28,576 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_2119f84f-9e53-498e-be6d-d54462da29a1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2119f84f-9e53-498e-be6d-d54462da29a1/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a615535fdf39447351d30c32f7932e942abe07a9 [2020-11-28 04:38:28,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:38:28,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:38:28,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:38:28,850 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:38:28,851 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:38:28,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2119f84f-9e53-498e-be6d-d54462da29a1/bin/ukojak/../../sv-benchmarks/c/ldv-regression/test22-2.c [2020-11-28 04:38:28,963 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2119f84f-9e53-498e-be6d-d54462da29a1/bin/ukojak/data/a84f5885b/1a512cfcde374c55a0a61502699a6990/FLAG6e35bb20f [2020-11-28 04:38:29,411 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:38:29,412 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2119f84f-9e53-498e-be6d-d54462da29a1/sv-benchmarks/c/ldv-regression/test22-2.c [2020-11-28 04:38:29,418 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2119f84f-9e53-498e-be6d-d54462da29a1/bin/ukojak/data/a84f5885b/1a512cfcde374c55a0a61502699a6990/FLAG6e35bb20f [2020-11-28 04:38:29,819 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2119f84f-9e53-498e-be6d-d54462da29a1/bin/ukojak/data/a84f5885b/1a512cfcde374c55a0a61502699a6990 [2020-11-28 04:38:29,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:38:29,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:38:29,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:38:29,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:38:29,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:38:29,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:29" (1/1) ... [2020-11-28 04:38:29,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a979a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:29, skipping insertion in model container [2020-11-28 04:38:29,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:29" (1/1) ... [2020-11-28 04:38:29,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:38:29,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:38:30,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:38:30,051 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:38:30,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:38:30,092 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:38:30,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:30 WrapperNode [2020-11-28 04:38:30,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:38:30,095 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:38:30,095 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:38:30,095 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:38:30,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:30" (1/1) ... [2020-11-28 04:38:30,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:30" (1/1) ... [2020-11-28 04:38:30,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:38:30,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:38:30,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:38:30,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:38:30,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:30" (1/1) ... [2020-11-28 04:38:30,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:30" (1/1) ... [2020-11-28 04:38:30,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:30" (1/1) ... [2020-11-28 04:38:30,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:30" (1/1) ... [2020-11-28 04:38:30,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:30" (1/1) ... [2020-11-28 04:38:30,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:30" (1/1) ... [2020-11-28 04:38:30,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:30" (1/1) ... [2020-11-28 04:38:30,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:38:30,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:38:30,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:38:30,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:38:30,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2119f84f-9e53-498e-be6d-d54462da29a1/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 [2020-11-28 04:38:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:38:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:38:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:38:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-11-28 04:38:30,278 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-11-28 04:38:30,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:38:30,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:38:30,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:38:30,893 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:38:30,893 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-11-28 04:38:30,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:30 BoogieIcfgContainer [2020-11-28 04:38:30,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:38:30,897 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:38:30,897 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:38:30,908 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:38:30,908 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:30" (1/1) ... [2020-11-28 04:38:30,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:38:30,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:30,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2020-11-28 04:38:30,971 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-11-28 04:38:30,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 04:38:30,975 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:31,191 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-28 04:38:31,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:31,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2020-11-28 04:38:31,207 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2020-11-28 04:38:31,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:38:31,208 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:38:31,319 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:38:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:38:31,370 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:38:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:38:31,552 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:38:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:38:31,604 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:38:31,656 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2020-11-28 04:38:31,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:38:31 ImpRootNode [2020-11-28 04:38:31,718 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:38:31,719 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:38:31,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:38:31,719 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:38:31,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:30" (3/4) ... [2020-11-28 04:38:31,722 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:38:31,788 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2119f84f-9e53-498e-be6d-d54462da29a1/bin/ukojak/witness.graphml [2020-11-28 04:38:31,789 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:38:31,791 INFO L168 Benchmark]: Toolchain (without parser) took 1966.97 ms. Allocated memory is still 109.1 MB. Free memory was 76.2 MB in the beginning and 73.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:31,792 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 75.5 MB. Free memory was 33.2 MB in the beginning and 33.2 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:31,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.49 ms. Allocated memory is still 109.1 MB. Free memory was 76.0 MB in the beginning and 85.1 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:31,795 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.75 ms. Allocated memory is still 109.1 MB. Free memory was 85.1 MB in the beginning and 83.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:31,795 INFO L168 Benchmark]: Boogie Preprocessor took 36.21 ms. Allocated memory is still 109.1 MB. Free memory was 83.5 MB in the beginning and 82.6 MB in the end (delta: 965.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:31,796 INFO L168 Benchmark]: RCFGBuilder took 716.47 ms. Allocated memory is still 109.1 MB. Free memory was 82.6 MB in the beginning and 58.9 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:31,797 INFO L168 Benchmark]: CodeCheck took 821.34 ms. Allocated memory is still 109.1 MB. Free memory was 58.9 MB in the beginning and 76.1 MB in the end (delta: -17.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:31,798 INFO L168 Benchmark]: Witness Printer took 70.35 ms. Allocated memory is still 109.1 MB. Free memory was 76.1 MB in the beginning and 73.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:31,803 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, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 6/6 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: [L11] struct dummy d1, d2; [L15] d1.a = __VERIFIER_nondet_int() [L16] d1.b = __VERIFIER_nondet_int() [L18] d2.a = __VERIFIER_nondet_int() [L19] d2.b = __VERIFIER_nondet_int() [L35] CALL, EXPR get_dummy() VAL [d1={6:0}, d2={3:0}] [L24] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={6:0}, d2={3:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L35] CALL, EXPR get_dummy() VAL [d1={6:0}, d2={3:0}] [L24] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={6:0}, d2={3:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L35] CALL, EXPR get_dummy() VAL [d1={6:0}, d2={3:0}] [L24] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={6:0}, d2={3:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L36] int i = __VERIFIER_nondet_int(); [L37] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L37] EXPR (*pd2).a [L37] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 VAL [d1={6:0}, d2={3:0}] [L37] COND TRUE pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L38] int *pa = &pd1->a; [L39] EXPR pd3->a [L39] i = pd3->a - 10 [L40] EXPR \read(*pa) VAL [d1={6:0}, d2={3:0}] [L40] COND FALSE !(i < *pa) [L29] EXPR s1->a [L29] return s1->a == i; [L43] COND TRUE !check(pd2, i) [L3] __assert_fail("0", "test22-2.c", 3, "reach_error") VAL [d1={6:0}, d2={3:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 75.5 MB. Free memory was 33.2 MB in the beginning and 33.2 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 269.49 ms. Allocated memory is still 109.1 MB. Free memory was 76.0 MB in the beginning and 85.1 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.75 ms. Allocated memory is still 109.1 MB. Free memory was 85.1 MB in the beginning and 83.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.21 ms. Allocated memory is still 109.1 MB. Free memory was 83.5 MB in the beginning and 82.6 MB in the end (delta: 965.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 716.47 ms. Allocated memory is still 109.1 MB. Free memory was 82.6 MB in the beginning and 58.9 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * CodeCheck took 821.34 ms. Allocated memory is still 109.1 MB. Free memory was 58.9 MB in the beginning and 76.1 MB in the end (delta: -17.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 70.35 ms. Allocated memory is still 109.1 MB. Free memory was 76.1 MB in the beginning and 73.2 MB in the end (delta: 2.8 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...