./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i --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_e98f513c-f4d8-4373-98df-cf845bbd29c8/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e98f513c-f4d8-4373-98df-cf845bbd29c8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e98f513c-f4d8-4373-98df-cf845bbd29c8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e98f513c-f4d8-4373-98df-cf845bbd29c8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e98f513c-f4d8-4373-98df-cf845bbd29c8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e98f513c-f4d8-4373-98df-cf845bbd29c8/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f51b9b30e22bffeec62b3fe2d58bec4819b7724c .............................................................................................................................................................................................................................................................................................................................................................. 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 03:01:44,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:01:44,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:01:44,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:01:44,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:01:44,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:01:44,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:01:44,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:01:44,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:01:44,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:01:44,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:01:44,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:01:44,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:01:44,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:01:44,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:01:44,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:01:44,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:01:44,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:01:44,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:01:44,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:01:44,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:01:44,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:01:44,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:01:44,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:01:44,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:01:44,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:01:44,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:01:44,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:01:44,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:01:44,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:01:44,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:01:44,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:01:44,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:01:44,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:01:44,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:01:44,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:01:44,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:01:44,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:01:44,300 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:01:44,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:01:44,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:01:44,304 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e98f513c-f4d8-4373-98df-cf845bbd29c8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:01:44,333 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:01:44,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:01:44,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:01:44,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:01:44,336 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:01:44,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:01:44,337 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:01:44,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:01:44,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:01:44,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:01:44,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:01:44,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:01:44,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:01:44,339 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:01:44,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:01:44,339 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:01:44,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:01:44,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:01:44,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:01:44,341 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:01:44,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:01:44,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:01:44,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:01:44,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:01:44,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:01:44,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:01:44,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:01:44,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:01:44,343 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:01:44,344 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_e98f513c-f4d8-4373-98df-cf845bbd29c8/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e98f513c-f4d8-4373-98df-cf845bbd29c8/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f51b9b30e22bffeec62b3fe2d58bec4819b7724c [2020-11-28 03:01:44,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:01:44,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:01:44,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:01:44,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:01:44,763 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:01:44,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e98f513c-f4d8-4373-98df-cf845bbd29c8/bin/uautomizer/../../sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i [2020-11-28 03:01:44,859 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e98f513c-f4d8-4373-98df-cf845bbd29c8/bin/uautomizer/data/a6b7dba38/4993de479b4b40dbb2f29546484e2feb/FLAGf84ece01a [2020-11-28 03:01:45,437 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:01:45,438 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e98f513c-f4d8-4373-98df-cf845bbd29c8/sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i [2020-11-28 03:01:45,462 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e98f513c-f4d8-4373-98df-cf845bbd29c8/bin/uautomizer/data/a6b7dba38/4993de479b4b40dbb2f29546484e2feb/FLAGf84ece01a [2020-11-28 03:01:45,723 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e98f513c-f4d8-4373-98df-cf845bbd29c8/bin/uautomizer/data/a6b7dba38/4993de479b4b40dbb2f29546484e2feb [2020-11-28 03:01:45,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:01:45,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:01:45,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:45,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:01:45,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:01:45,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:45" (1/1) ... [2020-11-28 03:01:45,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4625695d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:45, skipping insertion in model container [2020-11-28 03:01:45,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:45" (1/1) ... [2020-11-28 03:01:45,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:01:45,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:01:46,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:46,343 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:01:46,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:46,533 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:01:46,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:46 WrapperNode [2020-11-28 03:01:46,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:46,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:01:46,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:01:46,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:01:46,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:46" (1/1) ... [2020-11-28 03:01:46,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:46" (1/1) ... [2020-11-28 03:01:46,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:01:46,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:01:46,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:01:46,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:01:46,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:46" (1/1) ... [2020-11-28 03:01:46,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:46" (1/1) ... [2020-11-28 03:01:46,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:46" (1/1) ... [2020-11-28 03:01:46,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:46" (1/1) ... [2020-11-28 03:01:46,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:46" (1/1) ... [2020-11-28 03:01:46,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:46" (1/1) ... [2020-11-28 03:01:46,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:46" (1/1) ... [2020-11-28 03:01:46,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:01:46,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:01:46,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:01:46,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:01:46,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e98f513c-f4d8-4373-98df-cf845bbd29c8/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:2000 [2020-11-28 03:01:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-11-28 03:01:46,732 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-11-28 03:01:46,733 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-11-28 03:01:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-11-28 03:01:46,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:01:46,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:01:46,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:01:46,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:01:46,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:01:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:01:46,736 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-28 03:01:47,213 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:01:47,213 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-11-28 03:01:47,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:47 BoogieIcfgContainer [2020-11-28 03:01:47,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:01:47,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:01:47,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:01:47,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:01:47,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:01:45" (1/3) ... [2020-11-28 03:01:47,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@faf95c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:01:47, skipping insertion in model container [2020-11-28 03:01:47,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:46" (2/3) ... [2020-11-28 03:01:47,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@faf95c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:01:47, skipping insertion in model container [2020-11-28 03:01:47,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:47" (3/3) ... [2020-11-28 03:01:47,228 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-2.i [2020-11-28 03:01:47,242 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-28 03:01:47,242 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:01:47,247 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:01:47,248 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-28 03:01:47,292 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,292 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,292 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,292 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,293 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,293 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,293 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,293 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,293 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,294 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,294 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,298 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,300 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,300 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,315 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,316 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:01:47,318 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-28 03:01:47,333 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-28 03:01:47,359 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:01:47,360 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:01:47,360 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:01:47,360 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:01:47,360 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:01:47,360 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:01:47,360 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:01:47,361 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:01:47,374 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-28 03:01:47,377 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 70 transitions, 150 flow [2020-11-28 03:01:47,380 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 70 transitions, 150 flow [2020-11-28 03:01:47,382 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 72 places, 70 transitions, 150 flow [2020-11-28 03:01:47,434 INFO L129 PetriNetUnfolder]: 5/80 cut-off events. [2020-11-28 03:01:47,435 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-28 03:01:47,440 INFO L80 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 80 events. 5/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 118 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 59. Up to 4 conditions per place. [2020-11-28 03:01:47,444 INFO L116 LiptonReduction]: Number of co-enabled transitions 942 [2020-11-28 03:01:49,304 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-28 03:01:49,745 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-11-28 03:01:50,243 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2020-11-28 03:01:50,412 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-28 03:01:50,415 INFO L131 LiptonReduction]: Checked pairs total: 895 [2020-11-28 03:01:50,416 INFO L133 LiptonReduction]: Total number of compositions: 73 [2020-11-28 03:01:50,422 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2020-11-28 03:01:50,432 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-11-28 03:01:50,434 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-11-28 03:01:50,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 03:01:50,439 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:50,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-28 03:01:50,440 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-28 03:01:50,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:50,446 INFO L82 PathProgramCache]: Analyzing trace with hash 283649, now seen corresponding path program 1 times [2020-11-28 03:01:50,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:50,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185746909] [2020-11-28 03:01:50,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:50,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:50,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185746909] [2020-11-28 03:01:50,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:50,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 03:01:50,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4916155] [2020-11-28 03:01:50,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:01:50,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:50,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:01:50,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:50,688 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-11-28 03:01:50,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:50,733 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2020-11-28 03:01:50,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:01:50,735 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-28 03:01:50,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:50,745 INFO L225 Difference]: With dead ends: 35 [2020-11-28 03:01:50,745 INFO L226 Difference]: Without dead ends: 31 [2020-11-28 03:01:50,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:50,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-28 03:01:50,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-28 03:01:50,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-28 03:01:50,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2020-11-28 03:01:50,794 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2020-11-28 03:01:50,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:50,795 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2020-11-28 03:01:50,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:01:50,795 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-11-28 03:01:50,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:01:50,796 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:50,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:50,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:01:50,798 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-28 03:01:50,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:50,802 INFO L82 PathProgramCache]: Analyzing trace with hash -68679350, now seen corresponding path program 1 times [2020-11-28 03:01:50,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:50,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299267848] [2020-11-28 03:01:50,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:50,873 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:50,912 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:50,969 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:01:50,970 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:01:50,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:01:50,971 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-11-28 03:01:50,981 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [246] [246] L714-->L715: Formula: (and (= 1 |ULTIMATE.start_assume_abort_if_not_#in~cond_Out-1594068669|) (= ULTIMATE.start_assume_abort_if_not_~cond_Out-1594068669 |ULTIMATE.start_assume_abort_if_not_#in~cond_Out-1594068669|) (= (store |#memory_int_In-1594068669| |ULTIMATE.start_main_~#t1~0.base_In-1594068669| (store (select |#memory_int_In-1594068669| |ULTIMATE.start_main_~#t1~0.base_In-1594068669|) |ULTIMATE.start_main_~#t1~0.offset_In-1594068669| 0)) |#memory_int_Out-1594068669|) (< 0 ~n~0_In-1594068669)) InVars {ULTIMATE.start_main_~#t1~0.base=|ULTIMATE.start_main_~#t1~0.base_In-1594068669|, #memory_int=|#memory_int_In-1594068669|, ~n~0=~n~0_In-1594068669, ULTIMATE.start_main_~#t1~0.offset=|ULTIMATE.start_main_~#t1~0.offset_In-1594068669|} OutVars{ULTIMATE.start_main_~#t1~0.base=|ULTIMATE.start_main_~#t1~0.base_In-1594068669|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_Out-1594068669|, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out-1594068669, #memory_int=|#memory_int_Out-1594068669|, ~n~0=~n~0_In-1594068669, ULTIMATE.start_main_~#t1~0.offset=|ULTIMATE.start_main_~#t1~0.offset_In-1594068669|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, #memory_int] because there is no mapped edge [2020-11-28 03:01:51,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:01:51 BasicIcfg [2020-11-28 03:01:51,032 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:01:51,032 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:01:51,033 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:01:51,033 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:01:51,033 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:47" (3/4) ... [2020-11-28 03:01:51,036 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:01:51,037 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [246] [246] L714-->L715: Formula: (and (= 1 |ULTIMATE.start_assume_abort_if_not_#in~cond_Out-1594068669|) (= ULTIMATE.start_assume_abort_if_not_~cond_Out-1594068669 |ULTIMATE.start_assume_abort_if_not_#in~cond_Out-1594068669|) (= (store |#memory_int_In-1594068669| |ULTIMATE.start_main_~#t1~0.base_In-1594068669| (store (select |#memory_int_In-1594068669| |ULTIMATE.start_main_~#t1~0.base_In-1594068669|) |ULTIMATE.start_main_~#t1~0.offset_In-1594068669| 0)) |#memory_int_Out-1594068669|) (< 0 ~n~0_In-1594068669)) InVars {ULTIMATE.start_main_~#t1~0.base=|ULTIMATE.start_main_~#t1~0.base_In-1594068669|, #memory_int=|#memory_int_In-1594068669|, ~n~0=~n~0_In-1594068669, ULTIMATE.start_main_~#t1~0.offset=|ULTIMATE.start_main_~#t1~0.offset_In-1594068669|} OutVars{ULTIMATE.start_main_~#t1~0.base=|ULTIMATE.start_main_~#t1~0.base_In-1594068669|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_Out-1594068669|, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out-1594068669, #memory_int=|#memory_int_Out-1594068669|, ~n~0=~n~0_In-1594068669, ULTIMATE.start_main_~#t1~0.offset=|ULTIMATE.start_main_~#t1~0.offset_In-1594068669|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, #memory_int] because there is no mapped edge [2020-11-28 03:01:51,092 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e98f513c-f4d8-4373-98df-cf845bbd29c8/bin/uautomizer/witness.graphml [2020-11-28 03:01:51,092 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:01:51,094 INFO L168 Benchmark]: Toolchain (without parser) took 5364.17 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 54.0 MB in the beginning and 47.5 MB in the end (delta: 6.4 MB). Peak memory consumption was 49.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:51,095 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 73.4 MB. Free memory was 53.7 MB in the beginning and 53.7 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:01:51,095 INFO L168 Benchmark]: CACSL2BoogieTranslator took 802.80 ms. Allocated memory is still 88.1 MB. Free memory was 53.7 MB in the beginning and 45.8 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:51,096 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.23 ms. Allocated memory is still 88.1 MB. Free memory was 45.8 MB in the beginning and 43.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:51,097 INFO L168 Benchmark]: Boogie Preprocessor took 32.18 ms. Allocated memory is still 88.1 MB. Free memory was 43.7 MB in the beginning and 42.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:51,098 INFO L168 Benchmark]: RCFGBuilder took 553.18 ms. Allocated memory is still 88.1 MB. Free memory was 42.3 MB in the beginning and 52.1 MB in the end (delta: -9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:51,099 INFO L168 Benchmark]: TraceAbstraction took 3811.85 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 51.6 MB in the beginning and 49.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:51,099 INFO L168 Benchmark]: Witness Printer took 59.79 ms. Allocated memory is still 130.0 MB. Free memory was 49.7 MB in the beginning and 47.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:51,104 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 73.4 MB. Free memory was 53.7 MB in the beginning and 53.7 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 802.80 ms. Allocated memory is still 88.1 MB. Free memory was 53.7 MB in the beginning and 45.8 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.23 ms. Allocated memory is still 88.1 MB. Free memory was 45.8 MB in the beginning and 43.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.18 ms. Allocated memory is still 88.1 MB. Free memory was 43.7 MB in the beginning and 42.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 553.18 ms. Allocated memory is still 88.1 MB. Free memory was 42.3 MB in the beginning and 52.1 MB in the end (delta: -9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3811.85 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 51.6 MB in the beginning and 49.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. * Witness Printer took 59.79 ms. Allocated memory is still 130.0 MB. Free memory was 49.7 MB in the beginning and 47.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 632 VarBasedMoverChecksPositive, 7 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 5 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 3 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.0s, 72 PlacesBefore, 18 PlacesAfterwards, 70 TransitionsBefore, 12 TransitionsAfterwards, 942 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 73 TotalNumberOfCompositions, 895 MoverChecksTotal - CounterExampleResult [Line: 683]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L697] 0 volatile int x; [L698] 0 volatile int n; [L710] 0 pthread_t t1, t2; [L711] 0 int i; [L712] 0 x = 0 [L713] 0 n = __VERIFIER_nondet_int() [L715] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [n=1, x=0] [L716] 0 i = 0 VAL [n=1, x=0] [L716] COND TRUE 0 i < n [L717] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [arg={0:0}, n=1, x=0] [L704] 2 int t; [L705] 2 t = x [L706] 2 x = t + 1 [L707] 2 return 0; [L689] COND TRUE 1 !(cond) [L683] COND FALSE 1 !(0) [L683] 1 __assert_fail ("0", "assert.h", 6, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, arg={0:0}, arg={0:0}, n=1, t=0, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 7 SDtfs, 7 SDslu, 2 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...