./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/bin/uautomizer-GMMbpWq8iD --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 f63cf71edcde02dd3b46dcca5535f3ea4a873c298064fe307da2067f0af71187 ........................................................................................................................................................................................................................................................................................................ 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 0.2.1-dev-b2eff8b [2021-10-28 23:11:40,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:11:40,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:11:40,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:11:40,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:11:40,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:11:40,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:11:40,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:11:40,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:11:40,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:11:40,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:11:40,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:11:40,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:11:40,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:11:40,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:11:40,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:11:40,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:11:40,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:11:40,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:11:40,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:11:40,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:11:40,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:11:40,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:11:40,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:11:40,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:11:40,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:11:40,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:11:40,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:11:40,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:11:40,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:11:40,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:11:40,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:11:40,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:11:40,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:11:40,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:11:40,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:11:40,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:11:40,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:11:40,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:11:40,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:11:40,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:11:40,388 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:11:40,437 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:11:40,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:11:40,439 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:11:40,439 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:11:40,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:11:40,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:11:40,442 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:11:40,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:11:40,443 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:11:40,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:11:40,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:11:40,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:11:40,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:11:40,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:11:40,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:11:40,445 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:11:40,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:11:40,446 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:11:40,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:11:40,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:11:40,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:11:40,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:11:40,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:11:40,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:11:40,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:11:40,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:11:40,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:11:40,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:11:40,449 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:11:40,451 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:11:40,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:11:40,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:11:40,452 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_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f63cf71edcde02dd3b46dcca5535f3ea4a873c298064fe307da2067f0af71187 [2021-10-28 23:11:40,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:11:40,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:11:40,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:11:40,843 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:11:40,843 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:11:40,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2021-10-28 23:11:40,924 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/bin/uautomizer-GMMbpWq8iD/data/13a5a9f83/5bf47798abce4d0ba8cb112735b5bacc/FLAG9193536b3 [2021-10-28 23:11:41,659 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:11:41,668 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2021-10-28 23:11:41,697 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/bin/uautomizer-GMMbpWq8iD/data/13a5a9f83/5bf47798abce4d0ba8cb112735b5bacc/FLAG9193536b3 [2021-10-28 23:11:41,930 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/bin/uautomizer-GMMbpWq8iD/data/13a5a9f83/5bf47798abce4d0ba8cb112735b5bacc [2021-10-28 23:11:41,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:11:41,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:11:41,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:11:41,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:11:41,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:11:41,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:11:41" (1/1) ... [2021-10-28 23:11:41,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f3094e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:41, skipping insertion in model container [2021-10-28 23:11:41,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:11:41" (1/1) ... [2021-10-28 23:11:41,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:11:42,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:11:42,257 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[840,853] [2021-10-28 23:11:42,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:11:42,496 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:11:42,519 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[840,853] [2021-10-28 23:11:42,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:11:42,594 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:11:42,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:42 WrapperNode [2021-10-28 23:11:42,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:11:42,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:11:42,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:11:42,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:11:42,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:42" (1/1) ... [2021-10-28 23:11:42,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:42" (1/1) ... [2021-10-28 23:11:42,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:11:42,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:11:42,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:11:42,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:11:42,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:42" (1/1) ... [2021-10-28 23:11:42,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:42" (1/1) ... [2021-10-28 23:11:42,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:42" (1/1) ... [2021-10-28 23:11:42,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:42" (1/1) ... [2021-10-28 23:11:42,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:42" (1/1) ... [2021-10-28 23:11:42,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:42" (1/1) ... [2021-10-28 23:11:42,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:42" (1/1) ... [2021-10-28 23:11:42,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:11:42,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:11:42,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:11:42,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:11:42,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:42" (1/1) ... [2021-10-28 23:11:42,676 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:11:42,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:11:42,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:11:42,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:11:42,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:11:42,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:11:42,750 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-28 23:11:42,750 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-28 23:11:42,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:11:42,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:11:42,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:11:42,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:11:42,752 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 23:11:43,002 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:11:43,002 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 23:11:43,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:11:43 BoogieIcfgContainer [2021-10-28 23:11:43,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:11:43,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:11:43,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:11:43,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:11:43,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:11:41" (1/3) ... [2021-10-28 23:11:43,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22cc9eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:11:43, skipping insertion in model container [2021-10-28 23:11:43,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:42" (2/3) ... [2021-10-28 23:11:43,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22cc9eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:11:43, skipping insertion in model container [2021-10-28 23:11:43,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:11:43" (3/3) ... [2021-10-28 23:11:43,015 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2021-10-28 23:11:43,022 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 23:11:43,022 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:11:43,022 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:11:43,022 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 23:11:43,048 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,049 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,049 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,050 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,050 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,050 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,050 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,051 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,051 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,052 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,052 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,053 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,053 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,053 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,054 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,076 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,076 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,077 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,077 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,077 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,078 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,078 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,078 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,078 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,079 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,079 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,080 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,080 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,080 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,081 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,086 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,086 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,087 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,087 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,087 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,087 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:11:43,093 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-28 23:11:43,169 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:11:43,177 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:11:43,178 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 23:11:43,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions, 79 flow [2021-10-28 23:11:43,244 INFO L129 PetriNetUnfolder]: 1/36 cut-off events. [2021-10-28 23:11:43,245 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:11:43,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 1/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2021-10-28 23:11:43,248 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 37 transitions, 79 flow [2021-10-28 23:11:43,270 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 31 transitions, 65 flow [2021-10-28 23:11:43,305 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-10-28 23:11:43,317 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:11:43,318 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:11:43,320 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:11:43,321 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:11:43,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:11:43,330 INFO L85 PathProgramCache]: Analyzing trace with hash -802535493, now seen corresponding path program 1 times [2021-10-28 23:11:43,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:11:43,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475538417] [2021-10-28 23:11:43,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:11:43,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:11:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:11:43,503 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:11:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:11:43,594 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:11:43,597 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:11:43,598 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:11:43,601 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 23:11:43,601 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:11:43,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:11:43,606 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-28 23:11:43,611 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 23:11:43,612 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:11:43,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:11:43 BasicIcfg [2021-10-28 23:11:43,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:11:43,665 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:11:43,665 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:11:43,666 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:11:43,666 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:11:43" (3/4) ... [2021-10-28 23:11:43,669 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 23:11:43,742 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:11:43,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:11:43,745 INFO L168 Benchmark]: Toolchain (without parser) took 1804.85 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 55.2 MB in the beginning and 73.9 MB in the end (delta: -18.7 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:11:43,745 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 60.8 MB in the beginning and 60.8 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:11:43,747 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.00 ms. Allocated memory is still 90.2 MB. Free memory was 55.0 MB in the beginning and 56.7 MB in the end (delta: -1.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:11:43,751 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.56 ms. Allocated memory is still 90.2 MB. Free memory was 56.7 MB in the beginning and 54.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:11:43,751 INFO L168 Benchmark]: Boogie Preprocessor took 23.25 ms. Allocated memory is still 90.2 MB. Free memory was 54.6 MB in the beginning and 53.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:11:43,755 INFO L168 Benchmark]: RCFGBuilder took 339.31 ms. Allocated memory is still 90.2 MB. Free memory was 53.5 MB in the beginning and 43.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:11:43,757 INFO L168 Benchmark]: TraceAbstraction took 656.42 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 43.5 MB in the beginning and 76.9 MB in the end (delta: -33.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:11:43,758 INFO L168 Benchmark]: Witness Printer took 77.03 ms. Allocated memory is still 117.4 MB. Free memory was 76.9 MB in the beginning and 73.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:11:43,765 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 60.8 MB in the beginning and 60.8 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 652.00 ms. Allocated memory is still 90.2 MB. Free memory was 55.0 MB in the beginning and 56.7 MB in the end (delta: -1.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.56 ms. Allocated memory is still 90.2 MB. Free memory was 56.7 MB in the beginning and 54.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.25 ms. Allocated memory is still 90.2 MB. Free memory was 54.6 MB in the beginning and 53.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 339.31 ms. Allocated memory is still 90.2 MB. Free memory was 53.5 MB in the beginning and 43.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 656.42 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 43.5 MB in the beginning and 76.9 MB in the end (delta: -33.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 77.03 ms. Allocated memory is still 117.4 MB. Free memory was 76.9 MB in the beginning and 73.9 MB in the end (delta: 3.0 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: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int x = 3; [L683] 0 pthread_t id; [L684] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) [L677] 1 int x = __VERIFIER_nondet_int(); [L13] COND TRUE 1 !(cond) [L13] 1 reach_error() - UnprovableResult [Line: 684]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 52 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2021-10-28 23:11:43,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517f34cb-13da-40b4-986b-8c13b6938eb2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...