./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_35-traces-ex-2_true.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_3b3c4c18-d988-45bf-a6e7-697952f21249/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c4c18-d988-45bf-a6e7-697952f21249/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_3b3c4c18-d988-45bf-a6e7-697952f21249/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c4c18-d988-45bf-a6e7-697952f21249/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_35-traces-ex-2_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c4c18-d988-45bf-a6e7-697952f21249/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_3b3c4c18-d988-45bf-a6e7-697952f21249/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 220a816bf9e56f0c812cf45d75f7f6a28e368f2a8b5a571904eea6b5b34fcf20 ................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:18:51,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:18:51,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:18:51,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:18:51,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:18:51,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:18:51,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:18:51,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:18:51,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:18:51,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:18:51,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:18:51,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:18:51,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:18:51,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:18:51,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:18:51,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:18:51,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:18:51,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:18:51,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:18:51,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:18:51,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:18:51,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:18:51,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:18:51,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:18:51,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:18:51,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:18:51,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:18:51,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:18:51,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:18:51,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:18:51,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:18:51,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:18:51,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:18:51,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:18:51,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:18:51,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:18:51,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:18:51,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:18:51,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:18:51,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:18:51,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:18:51,451 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c4c18-d988-45bf-a6e7-697952f21249/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:18:51,491 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:18:51,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:18:51,492 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:18:51,492 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:18:51,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:18:51,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:18:51,494 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:18:51,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:18:51,495 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:18:51,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:18:51,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:18:51,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:18:51,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:18:51,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:18:51,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:18:51,496 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:18:51,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:18:51,496 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:18:51,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:18:51,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:18:51,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:18:51,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:18:51,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:18:51,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:18:51,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:18:51,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:18:51,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:18:51,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:18:51,498 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:18:51,498 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:18:51,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:18:51,498 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:18:51,499 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_3b3c4c18-d988-45bf-a6e7-697952f21249/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c4c18-d988-45bf-a6e7-697952f21249/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 220a816bf9e56f0c812cf45d75f7f6a28e368f2a8b5a571904eea6b5b34fcf20 [2021-10-28 23:18:51,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:18:51,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:18:51,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:18:51,809 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:18:51,813 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:18:51,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c4c18-d988-45bf-a6e7-697952f21249/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/goblint-regression/13-privatized_35-traces-ex-2_true.i [2021-10-28 23:18:51,889 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c4c18-d988-45bf-a6e7-697952f21249/bin/uautomizer-GMMbpWq8iD/data/2eb6284b6/a17caa90d5fe448b955de2749718bc53/FLAG682a653c6 [2021-10-28 23:18:52,424 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:18:52,428 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c4c18-d988-45bf-a6e7-697952f21249/sv-benchmarks/c/goblint-regression/13-privatized_35-traces-ex-2_true.i [2021-10-28 23:18:52,451 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c4c18-d988-45bf-a6e7-697952f21249/bin/uautomizer-GMMbpWq8iD/data/2eb6284b6/a17caa90d5fe448b955de2749718bc53/FLAG682a653c6 [2021-10-28 23:18:52,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c4c18-d988-45bf-a6e7-697952f21249/bin/uautomizer-GMMbpWq8iD/data/2eb6284b6/a17caa90d5fe448b955de2749718bc53 [2021-10-28 23:18:52,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:18:52,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:18:52,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:18:52,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:18:52,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:18:52,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:18:52" (1/1) ... [2021-10-28 23:18:52,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@abdd3a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:52, skipping insertion in model container [2021-10-28 23:18:52,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:18:52" (1/1) ... [2021-10-28 23:18:52,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:18:53,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:18:53,190 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_3b3c4c18-d988-45bf-a6e7-697952f21249/sv-benchmarks/c/goblint-regression/13-privatized_35-traces-ex-2_true.i[826,839] [2021-10-28 23:18:53,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:18:53,417 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:18:53,434 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_3b3c4c18-d988-45bf-a6e7-697952f21249/sv-benchmarks/c/goblint-regression/13-privatized_35-traces-ex-2_true.i[826,839] [2021-10-28 23:18:53,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:18:53,524 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:18:53,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53 WrapperNode [2021-10-28 23:18:53,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:18:53,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:18:53,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:18:53,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:18:53,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,573 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:18:53,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:18:53,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:18:53,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:18:53,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:18:53,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:18:53,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:18:53,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:18:53,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,615 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:18:53,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c4c18-d988-45bf-a6e7-697952f21249/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:53,661 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c4c18-d988-45bf-a6e7-697952f21249/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:53,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c4c18-d988-45bf-a6e7-697952f21249/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:18:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:18:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-28 23:18:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:18:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-28 23:18:53,713 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-28 23:18:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:18:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:18:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:18:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:18:53,715 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 23:18:54,067 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:18:54,068 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 23:18:54,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:18:54 BoogieIcfgContainer [2021-10-28 23:18:54,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:18:54,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:18:54,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:18:54,083 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:18:54,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:18:52" (1/3) ... [2021-10-28 23:18:54,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24110523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:18:54, skipping insertion in model container [2021-10-28 23:18:54,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (2/3) ... [2021-10-28 23:18:54,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24110523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:18:54, skipping insertion in model container [2021-10-28 23:18:54,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:18:54" (3/3) ... [2021-10-28 23:18:54,087 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_35-traces-ex-2_true.i [2021-10-28 23:18:54,097 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 23:18:54,098 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:18:54,098 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:18:54,098 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 23:18:54,137 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,137 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,137 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,137 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,138 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,138 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,138 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,138 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,139 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,139 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,139 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,139 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,139 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,140 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,140 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,140 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,140 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,141 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,141 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,141 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,141 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,142 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,142 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,142 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,145 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,146 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,146 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,146 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,146 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,146 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,147 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:18:54,151 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-28 23:18:54,197 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:18:54,204 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 23:18:54,204 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-28 23:18:54,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 63 transitions, 131 flow [2021-10-28 23:18:54,255 INFO L129 PetriNetUnfolder]: 1/62 cut-off events. [2021-10-28 23:18:54,255 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:18:54,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 62 events. 1/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2021-10-28 23:18:54,258 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 63 transitions, 131 flow [2021-10-28 23:18:54,263 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2021-10-28 23:18:54,278 INFO L129 PetriNetUnfolder]: 0/47 cut-off events. [2021-10-28 23:18:54,278 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:18:54,278 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:18:54,279 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:18:54,280 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 23:18:54,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:54,285 INFO L85 PathProgramCache]: Analyzing trace with hash 2061653660, now seen corresponding path program 1 times [2021-10-28 23:18:54,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:54,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193564676] [2021-10-28 23:18:54,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:54,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:54,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:54,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:54,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193564676] [2021-10-28 23:18:54,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193564676] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:54,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:54,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:18:54,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834535057] [2021-10-28 23:18:54,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:18:54,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:54,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:18:54,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:18:54,811 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 63 [2021-10-28 23:18:54,817 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 54.0) internal successors, (270), 5 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:54,817 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:18:54,818 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 63 [2021-10-28 23:18:54,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:18:54,950 INFO L129 PetriNetUnfolder]: 8/95 cut-off events. [2021-10-28 23:18:54,952 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:18:54,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 95 events. 8/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 203 event pairs, 0 based on Foata normal form. 3/98 useless extension candidates. Maximal degree in co-relation 95. Up to 9 conditions per place. [2021-10-28 23:18:54,954 INFO L132 encePairwiseOnDemand]: 57/63 looper letters, 7 selfloop transitions, 3 changer transitions 9/64 dead transitions. [2021-10-28 23:18:54,954 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 64 transitions, 169 flow [2021-10-28 23:18:54,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:18:54,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 23:18:54,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 392 transitions. [2021-10-28 23:18:54,967 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-10-28 23:18:54,968 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 392 transitions. [2021-10-28 23:18:54,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 392 transitions. [2021-10-28 23:18:54,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:18:54,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 392 transitions. [2021-10-28 23:18:54,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:54,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 63.0) internal successors, (504), 8 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:54,988 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 63.0) internal successors, (504), 8 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:54,990 INFO L186 Difference]: Start difference. First operand has 56 places, 52 transitions, 107 flow. Second operand 7 states and 392 transitions. [2021-10-28 23:18:54,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 64 transitions, 169 flow [2021-10-28 23:18:54,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 64 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 23:18:55,000 INFO L242 Difference]: Finished difference. Result has 66 places, 52 transitions, 125 flow [2021-10-28 23:18:55,006 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=125, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2021-10-28 23:18:55,007 INFO L334 CegarLoopForPetriNet]: 56 programPoint places, 10 predicate places. [2021-10-28 23:18:55,007 INFO L470 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 125 flow [2021-10-28 23:18:55,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.0) internal successors, (270), 5 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:55,007 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:18:55,007 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:18:55,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:18:55,008 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 23:18:55,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:55,008 INFO L85 PathProgramCache]: Analyzing trace with hash -560163879, now seen corresponding path program 1 times [2021-10-28 23:18:55,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:55,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433291671] [2021-10-28 23:18:55,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:55,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:55,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:55,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433291671] [2021-10-28 23:18:55,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433291671] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:55,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:55,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 23:18:55,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598076897] [2021-10-28 23:18:55,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:18:55,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:55,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:18:55,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:18:55,145 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 63 [2021-10-28 23:18:55,147 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 125 flow. Second operand has 7 states, 7 states have (on average 39.285714285714285) internal successors, (275), 7 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:55,147 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:18:55,147 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 63 [2021-10-28 23:18:55,147 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:18:55,345 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2021-10-28 23:18:55,345 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-10-28 23:18:55,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 77 events. 3/77 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 109 event pairs, 0 based on Foata normal form. 12/88 useless extension candidates. Maximal degree in co-relation 117. Up to 12 conditions per place. [2021-10-28 23:18:55,346 INFO L132 encePairwiseOnDemand]: 54/63 looper letters, 12 selfloop transitions, 5 changer transitions 13/58 dead transitions. [2021-10-28 23:18:55,347 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 58 transitions, 191 flow [2021-10-28 23:18:55,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:18:55,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 23:18:55,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 291 transitions. [2021-10-28 23:18:55,350 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6598639455782312 [2021-10-28 23:18:55,350 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 291 transitions. [2021-10-28 23:18:55,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 291 transitions. [2021-10-28 23:18:55,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:18:55,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 291 transitions. [2021-10-28 23:18:55,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 41.57142857142857) internal successors, (291), 7 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:55,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 63.0) internal successors, (504), 8 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:55,357 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 63.0) internal successors, (504), 8 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:55,357 INFO L186 Difference]: Start difference. First operand has 66 places, 52 transitions, 125 flow. Second operand 7 states and 291 transitions. [2021-10-28 23:18:55,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 58 transitions, 191 flow [2021-10-28 23:18:55,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 58 transitions, 177 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-10-28 23:18:55,377 INFO L242 Difference]: Finished difference. Result has 62 places, 45 transitions, 106 flow [2021-10-28 23:18:55,377 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=106, PETRI_PLACES=62, PETRI_TRANSITIONS=45} [2021-10-28 23:18:55,378 INFO L334 CegarLoopForPetriNet]: 56 programPoint places, 6 predicate places. [2021-10-28 23:18:55,378 INFO L470 AbstractCegarLoop]: Abstraction has has 62 places, 45 transitions, 106 flow [2021-10-28 23:18:55,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 39.285714285714285) internal successors, (275), 7 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:55,378 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:18:55,379 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:18:55,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:18:55,379 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 23:18:55,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:55,380 INFO L85 PathProgramCache]: Analyzing trace with hash 297384682, now seen corresponding path program 1 times [2021-10-28 23:18:55,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:55,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387195736] [2021-10-28 23:18:55,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:55,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:55,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:55,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:55,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387195736] [2021-10-28 23:18:55,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387195736] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:55,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:55,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 23:18:55,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362296780] [2021-10-28 23:18:55,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:18:55,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:55,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:18:55,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:18:55,685 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 63 [2021-10-28 23:18:55,688 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 45 transitions, 106 flow. Second operand has 10 states, 10 states have (on average 28.7) internal successors, (287), 10 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:55,689 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:18:55,689 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 63 [2021-10-28 23:18:55,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:18:55,857 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-10-28 23:18:55,858 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 23:18:55,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 38 events. 0/38 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 1/39 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-10-28 23:18:55,859 INFO L132 encePairwiseOnDemand]: 57/63 looper letters, 0 selfloop transitions, 0 changer transitions 38/38 dead transitions. [2021-10-28 23:18:55,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 38 transitions, 134 flow [2021-10-28 23:18:55,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:18:55,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 23:18:55,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 205 transitions. [2021-10-28 23:18:55,865 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.46485260770975056 [2021-10-28 23:18:55,865 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 205 transitions. [2021-10-28 23:18:55,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 205 transitions. [2021-10-28 23:18:55,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:18:55,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 205 transitions. [2021-10-28 23:18:55,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 29.285714285714285) internal successors, (205), 7 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:55,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 63.0) internal successors, (504), 8 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:55,870 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 63.0) internal successors, (504), 8 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:55,885 INFO L186 Difference]: Start difference. First operand has 62 places, 45 transitions, 106 flow. Second operand 7 states and 205 transitions. [2021-10-28 23:18:55,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 38 transitions, 134 flow [2021-10-28 23:18:55,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 38 transitions, 126 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-28 23:18:55,891 INFO L242 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2021-10-28 23:18:55,891 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2021-10-28 23:18:55,892 INFO L334 CegarLoopForPetriNet]: 56 programPoint places, -7 predicate places. [2021-10-28 23:18:55,892 INFO L470 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2021-10-28 23:18:55,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 28.7) internal successors, (287), 10 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:55,895 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:18:55,895 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 23:18:55,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:18:55,900 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 23:18:55,904 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 23:18:55,905 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:18:55,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:18:55 BasicIcfg [2021-10-28 23:18:55,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:18:55,910 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:18:55,910 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:18:55,910 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:18:55,911 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:18:54" (3/4) ... [2021-10-28 23:18:55,916 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:18:55,925 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-10-28 23:18:55,930 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-28 23:18:55,931 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:18:55,931 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:18:55,931 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:18:55,976 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c4c18-d988-45bf-a6e7-697952f21249/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:18:55,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:18:55,978 INFO L168 Benchmark]: Toolchain (without parser) took 3068.07 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 54.3 MB in the beginning and 89.6 MB in the end (delta: -35.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:18:55,978 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory is still 72.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:18:55,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.06 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 54.1 MB in the beginning and 86.8 MB in the end (delta: -32.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:55,980 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.06 ms. Allocated memory is still 119.5 MB. Free memory was 86.8 MB in the beginning and 85.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:55,981 INFO L168 Benchmark]: Boogie Preprocessor took 26.22 ms. Allocated memory is still 119.5 MB. Free memory was 85.1 MB in the beginning and 83.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:55,982 INFO L168 Benchmark]: RCFGBuilder took 469.20 ms. Allocated memory is still 119.5 MB. Free memory was 83.5 MB in the beginning and 72.2 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:55,982 INFO L168 Benchmark]: TraceAbstraction took 1835.96 ms. Allocated memory is still 119.5 MB. Free memory was 71.7 MB in the beginning and 92.9 MB in the end (delta: -21.1 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:55,983 INFO L168 Benchmark]: Witness Printer took 66.60 ms. Allocated memory is still 119.5 MB. Free memory was 92.9 MB in the beginning and 89.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:55,987 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 92.3 MB. Free memory is still 72.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 615.06 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 54.1 MB in the beginning and 86.8 MB in the end (delta: -32.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.06 ms. Allocated memory is still 119.5 MB. Free memory was 86.8 MB in the beginning and 85.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.22 ms. Allocated memory is still 119.5 MB. Free memory was 85.1 MB in the beginning and 83.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 469.20 ms. Allocated memory is still 119.5 MB. Free memory was 83.5 MB in the beginning and 72.2 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1835.96 ms. Allocated memory is still 119.5 MB. Free memory was 71.7 MB in the beginning and 92.9 MB in the end (delta: -21.1 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. * Witness Printer took 66.60 ms. Allocated memory is still 119.5 MB. Free memory was 92.9 MB in the beginning and 89.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 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 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 79 locations, 2 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: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 61 SDslu, 78 SDs, 0 SdLazy, 159 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=1, InterpolantAutomatonStates: 21, 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, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 515 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 23:18:56,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c4c18-d988-45bf-a6e7-697952f21249/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...