./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/pc_sfifo_1.cil-1.c --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_800dc956-0680-433c-9278-f20b480e18d9/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_800dc956-0680-433c-9278-f20b480e18d9/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_800dc956-0680-433c-9278-f20b480e18d9/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_800dc956-0680-433c-9278-f20b480e18d9/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/systemc/pc_sfifo_1.cil-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_800dc956-0680-433c-9278-f20b480e18d9/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_800dc956-0680-433c-9278-f20b480e18d9/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 b60d0a2361544de13d982747fad9d912bc87905e .............................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 17:24:06,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:24:06,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:24:06,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:24:06,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:24:06,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:24:06,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:24:06,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:24:06,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:24:06,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:24:06,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:24:06,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:24:06,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:24:06,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:24:06,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:24:06,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:24:06,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:24:06,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:24:06,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:24:06,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:24:06,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:24:06,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:24:06,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:24:06,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:24:06,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:24:06,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:24:06,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:24:06,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:24:06,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:24:06,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:24:06,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:24:06,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:24:06,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:24:06,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:24:06,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:24:06,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:24:06,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:24:06,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:24:06,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:24:06,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:24:06,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:24:06,240 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_800dc956-0680-433c-9278-f20b480e18d9/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 17:24:06,278 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:24:06,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:24:06,286 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:24:06,286 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:24:06,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:24:06,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:24:06,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:24:06,290 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:24:06,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:24:06,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:24:06,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:24:06,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:24:06,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:24:06,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:24:06,293 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:24:06,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:24:06,294 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:24:06,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:24:06,295 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:24:06,295 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:24:06,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:24:06,296 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:24:06,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:24:06,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:24:06,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:24:06,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:24:06,298 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:24:06,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:24:06,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:24:06,300 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_800dc956-0680-433c-9278-f20b480e18d9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_800dc956-0680-433c-9278-f20b480e18d9/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b60d0a2361544de13d982747fad9d912bc87905e [2020-12-01 17:24:06,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:24:06,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:24:06,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:24:06,831 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:24:06,833 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:24:06,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_800dc956-0680-433c-9278-f20b480e18d9/bin/ukojak/../../sv-benchmarks/c/systemc/pc_sfifo_1.cil-1.c [2020-12-01 17:24:06,940 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_800dc956-0680-433c-9278-f20b480e18d9/bin/ukojak/data/d53456bc0/9214b3435cb845988e4d0f39f4fd2b84/FLAG0b46ed3f3 [2020-12-01 17:24:07,687 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:24:07,688 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_800dc956-0680-433c-9278-f20b480e18d9/sv-benchmarks/c/systemc/pc_sfifo_1.cil-1.c [2020-12-01 17:24:07,749 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_800dc956-0680-433c-9278-f20b480e18d9/bin/ukojak/data/d53456bc0/9214b3435cb845988e4d0f39f4fd2b84/FLAG0b46ed3f3 [2020-12-01 17:24:07,984 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_800dc956-0680-433c-9278-f20b480e18d9/bin/ukojak/data/d53456bc0/9214b3435cb845988e4d0f39f4fd2b84 [2020-12-01 17:24:07,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:24:07,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:24:07,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:24:07,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:24:07,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:24:07,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:24:07" (1/1) ... [2020-12-01 17:24:08,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@919a462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:24:07, skipping insertion in model container [2020-12-01 17:24:08,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:24:07" (1/1) ... [2020-12-01 17:24:08,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:24:08,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:24:08,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:24:08,392 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:24:08,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:24:08,482 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:24:08,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:24:08 WrapperNode [2020-12-01 17:24:08,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:24:08,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:24:08,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:24:08,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:24:08,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:24:08" (1/1) ... [2020-12-01 17:24:08,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:24:08" (1/1) ... [2020-12-01 17:24:08,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:24:08,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:24:08,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:24:08,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:24:08,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:24:08" (1/1) ... [2020-12-01 17:24:08,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:24:08" (1/1) ... [2020-12-01 17:24:08,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:24:08" (1/1) ... [2020-12-01 17:24:08,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:24:08" (1/1) ... [2020-12-01 17:24:08,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:24:08" (1/1) ... [2020-12-01 17:24:08,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:24:08" (1/1) ... [2020-12-01 17:24:08,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:24:08" (1/1) ... [2020-12-01 17:24:08,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:24:08,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:24:08,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:24:08,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:24:08,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:24:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_800dc956-0680-433c-9278-f20b480e18d9/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:24:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-12-01 17:24:08,754 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-12-01 17:24:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 17:24:08,755 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-12-01 17:24:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-12-01 17:24:08,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:24:08,756 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2020-12-01 17:24:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2020-12-01 17:24:08,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:24:08,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:24:09,890 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:24:09,890 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-12-01 17:24:09,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:24:09 BoogieIcfgContainer [2020-12-01 17:24:09,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:24:09,901 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:24:09,901 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:24:09,916 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:24:09,917 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:24:09" (1/1) ... [2020-12-01 17:24:09,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:24:09,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:24:09,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 50 states and 75 transitions. [2020-12-01 17:24:09,998 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 75 transitions. [2020-12-01 17:24:10,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 17:24:10,004 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:24:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:24:10,152 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:24:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:24:10,189 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:24:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:24:10,291 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:24:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:24:10,321 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:24:10,405 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2020-12-01 17:24:10,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:24:10 ImpRootNode [2020-12-01 17:24:10,470 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:24:10,471 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:24:10,472 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:24:10,472 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:24:10,473 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:24:09" (3/4) ... [2020-12-01 17:24:10,476 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 17:24:10,646 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_800dc956-0680-433c-9278-f20b480e18d9/bin/ukojak/witness.graphml [2020-12-01 17:24:10,650 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:24:10,653 INFO L168 Benchmark]: Toolchain (without parser) took 2662.50 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 56.8 MB in the beginning and 60.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2020-12-01 17:24:10,654 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 77.6 MB. Free memory was 43.8 MB in the beginning and 43.7 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:24:10,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 493.78 ms. Allocated memory is still 77.6 MB. Free memory was 56.7 MB in the beginning and 44.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:24:10,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.96 ms. Allocated memory is still 77.6 MB. Free memory was 44.9 MB in the beginning and 43.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:24:10,658 INFO L168 Benchmark]: Boogie Preprocessor took 46.88 ms. Allocated memory is still 77.6 MB. Free memory was 43.0 MB in the beginning and 41.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:24:10,659 INFO L168 Benchmark]: RCFGBuilder took 1268.03 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 41.6 MB in the beginning and 45.5 MB in the end (delta: -4.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-01 17:24:10,659 INFO L168 Benchmark]: CodeCheck took 569.76 ms. Allocated memory is still 94.4 MB. Free memory was 45.5 MB in the beginning and 64.0 MB in the end (delta: -18.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:24:10,660 INFO L168 Benchmark]: Witness Printer took 178.77 ms. Allocated memory is still 94.4 MB. Free memory was 64.0 MB in the beginning and 60.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 17:24:10,667 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 4 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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: [L16] int q_buf_0 ; [L17] int q_free ; [L18] int q_read_ev ; [L19] int q_write_ev ; [L20] int p_num_write ; [L21] int p_last_write ; [L22] int p_dw_st ; [L23] int p_dw_pc ; [L24] int p_dw_i ; [L25] int c_num_read ; [L26] int c_last_read ; [L27] int c_dr_st ; [L28] int c_dr_pc ; [L29] int c_dr_i ; [L136] static int a_t ; [L352] int __retres1 ; [L338] q_free = 1 [L339] q_write_ev = 2 [L340] q_read_ev = q_write_ev [L341] p_num_write = 0 [L342] p_dw_pc = 0 [L343] p_dw_i = 1 [L344] c_num_read = 0 [L345] c_dr_pc = 0 [L346] c_dr_i = 1 [L306] int kernel_st ; [L307] int tmp ; [L311] kernel_st = 0 [L198] COND TRUE (int )p_dw_i == 1 [L199] p_dw_st = 0 [L203] COND TRUE (int )c_dr_i == 1 [L204] c_dr_st = 0 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L315] COND TRUE 1 [L318] kernel_st = 1 [L233] int tmp ; [L234] int tmp___0 ; [L235] int tmp___1 ; VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L239] COND TRUE 1 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L242] CALL, EXPR exists_runnable_thread() VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L213] int __retres1 ; [L216] COND TRUE (int )p_dw_st == 0 [L217] __retres1 = 1 [L229] return (__retres1); [L242] RET, EXPR exists_runnable_thread() VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L242] tmp___1 = exists_runnable_thread() [L244] COND TRUE \read(tmp___1) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L249] COND TRUE (int )p_dw_st == 0 [L251] tmp = __VERIFIER_nondet_int() [L253] COND FALSE !(\read(tmp)) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L259] CALL error() VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L3] __assert_fail("0", "pc_sfifo_1.cil-1.c", 3, "reach_error") VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 77.6 MB. Free memory was 43.8 MB in the beginning and 43.7 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 493.78 ms. Allocated memory is still 77.6 MB. Free memory was 56.7 MB in the beginning and 44.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.96 ms. Allocated memory is still 77.6 MB. Free memory was 44.9 MB in the beginning and 43.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.88 ms. Allocated memory is still 77.6 MB. Free memory was 43.0 MB in the beginning and 41.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1268.03 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 41.6 MB in the beginning and 45.5 MB in the end (delta: -4.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * CodeCheck took 569.76 ms. Allocated memory is still 94.4 MB. Free memory was 45.5 MB in the beginning and 64.0 MB in the end (delta: -18.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 178.77 ms. Allocated memory is still 94.4 MB. Free memory was 64.0 MB in the beginning and 60.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...