./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_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_38d4439c-4733-42ae-822c-0bf89af60ac3/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d4439c-4733-42ae-822c-0bf89af60ac3/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_38d4439c-4733-42ae-822c-0bf89af60ac3/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d4439c-4733-42ae-822c-0bf89af60ac3/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d4439c-4733-42ae-822c-0bf89af60ac3/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_38d4439c-4733-42ae-822c-0bf89af60ac3/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 a1e06c2475844e8210b964f0d0bcd0ae869bce55dd577774b29bb0530fb73ad2 .............................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:13:58,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:13:58,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:13:58,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:13:58,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:13:58,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:13:58,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:13:58,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:13:59,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:13:59,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:13:59,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:13:59,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:13:59,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:13:59,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:13:59,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:13:59,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:13:59,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:13:59,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:13:59,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:13:59,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:13:59,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:13:59,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:13:59,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:13:59,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:13:59,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:13:59,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:13:59,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:13:59,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:13:59,055 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:13:59,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:13:59,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:13:59,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:13:59,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:13:59,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:13:59,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:13:59,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:13:59,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:13:59,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:13:59,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:13:59,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:13:59,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:13:59,069 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d4439c-4733-42ae-822c-0bf89af60ac3/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:13:59,098 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:13:59,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:13:59,099 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:13:59,099 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:13:59,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:13:59,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:13:59,101 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:13:59,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:13:59,102 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:13:59,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:13:59,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:13:59,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:13:59,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:13:59,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:13:59,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:13:59,104 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:13:59,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:13:59,104 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:13:59,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:13:59,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:13:59,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:13:59,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:13:59,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:13:59,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:13:59,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:13:59,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:13:59,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:13:59,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:13:59,107 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:13:59,107 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:13:59,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:13:59,108 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:13:59,108 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_38d4439c-4733-42ae-822c-0bf89af60ac3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d4439c-4733-42ae-822c-0bf89af60ac3/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1e06c2475844e8210b964f0d0bcd0ae869bce55dd577774b29bb0530fb73ad2 [2021-10-28 23:13:59,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:13:59,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:13:59,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:13:59,437 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:13:59,438 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:13:59,439 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d4439c-4733-42ae-822c-0bf89af60ac3/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2021-10-28 23:13:59,521 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d4439c-4733-42ae-822c-0bf89af60ac3/bin/uautomizer-GMMbpWq8iD/data/a00f94ea8/7e33c8466b5447f1b9906e16f7384ed5/FLAG918089aa1 [2021-10-28 23:14:00,138 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:14:00,138 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d4439c-4733-42ae-822c-0bf89af60ac3/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2021-10-28 23:14:00,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d4439c-4733-42ae-822c-0bf89af60ac3/bin/uautomizer-GMMbpWq8iD/data/a00f94ea8/7e33c8466b5447f1b9906e16f7384ed5/FLAG918089aa1 [2021-10-28 23:14:00,414 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d4439c-4733-42ae-822c-0bf89af60ac3/bin/uautomizer-GMMbpWq8iD/data/a00f94ea8/7e33c8466b5447f1b9906e16f7384ed5 [2021-10-28 23:14:00,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:14:00,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:14:00,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:14:00,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:14:00,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:14:00,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:14:00" (1/1) ... [2021-10-28 23:14:00,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1986975a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:00, skipping insertion in model container [2021-10-28 23:14:00,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:14:00" (1/1) ... [2021-10-28 23:14:00,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:14:00,513 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:14:00,702 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_38d4439c-4733-42ae-822c-0bf89af60ac3/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[841,854] [2021-10-28 23:14:00,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:14:00,963 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:14:00,980 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_38d4439c-4733-42ae-822c-0bf89af60ac3/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[841,854] [2021-10-28 23:14:01,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:14:01,068 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:14:01,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:01 WrapperNode [2021-10-28 23:14:01,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:14:01,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:14:01,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:14:01,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:14:01,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:01" (1/1) ... [2021-10-28 23:14:01,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:01" (1/1) ... [2021-10-28 23:14:01,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:14:01,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:14:01,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:14:01,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:14:01,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:01" (1/1) ... [2021-10-28 23:14:01,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:01" (1/1) ... [2021-10-28 23:14:01,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:01" (1/1) ... [2021-10-28 23:14:01,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:01" (1/1) ... [2021-10-28 23:14:01,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:01" (1/1) ... [2021-10-28 23:14:01,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:01" (1/1) ... [2021-10-28 23:14:01,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:01" (1/1) ... [2021-10-28 23:14:01,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:14:01,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:14:01,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:14:01,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:14:01,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:01" (1/1) ... [2021-10-28 23:14:01,181 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:14:01,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d4439c-4733-42ae-822c-0bf89af60ac3/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:14:01,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d4439c-4733-42ae-822c-0bf89af60ac3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:14:01,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d4439c-4733-42ae-822c-0bf89af60ac3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:14:01,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:14:01,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:14:01,265 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-28 23:14:01,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:14:01,266 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-28 23:14:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-28 23:14:01,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:14:01,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:14:01,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:14:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:14:01,268 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 23:14:01,674 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:14:01,674 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 23:14:01,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:14:01 BoogieIcfgContainer [2021-10-28 23:14:01,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:14:01,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:14:01,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:14:01,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:14:01,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:14:00" (1/3) ... [2021-10-28 23:14:01,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33caf69c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:14:01, skipping insertion in model container [2021-10-28 23:14:01,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:01" (2/3) ... [2021-10-28 23:14:01,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33caf69c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:14:01, skipping insertion in model container [2021-10-28 23:14:01,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:14:01" (3/3) ... [2021-10-28 23:14:01,687 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_neg.i [2021-10-28 23:14:01,693 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 23:14:01,694 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:14:01,694 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:14:01,694 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 23:14:01,722 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,723 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,723 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,723 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,723 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,724 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,724 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,724 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,724 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,725 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,725 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,725 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,725 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,726 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,726 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,726 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,727 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,727 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,727 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,727 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,728 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,728 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,728 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,729 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,731 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,732 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,732 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,732 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,732 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,732 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,733 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:14:01,740 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-28 23:14:01,798 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:14:01,805 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 23:14:01,806 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-28 23:14:01,820 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 63 transitions, 134 flow [2021-10-28 23:14:01,866 INFO L129 PetriNetUnfolder]: 1/62 cut-off events. [2021-10-28 23:14:01,866 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-28 23:14:01,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 62 events. 1/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2021-10-28 23:14:01,870 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 63 transitions, 134 flow [2021-10-28 23:14:01,876 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 50 transitions, 103 flow [2021-10-28 23:14:01,915 INFO L129 PetriNetUnfolder]: 0/44 cut-off events. [2021-10-28 23:14:01,916 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:14:01,916 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:14:01,917 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] [2021-10-28 23:14:01,917 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 23:14:01,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:14:01,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1459843338, now seen corresponding path program 1 times [2021-10-28 23:14:01,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:14:01,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056078272] [2021-10-28 23:14:01,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:14:01,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:14:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:14:02,324 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 23:14:02,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:14:02,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056078272] [2021-10-28 23:14:02,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056078272] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:14:02,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:14:02,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:14:02,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797102866] [2021-10-28 23:14:02,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:14:02,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:14:02,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:14:02,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:14:02,363 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 63 [2021-10-28 23:14:02,368 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 50 transitions, 103 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 23:14:02,368 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:14:02,368 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 63 [2021-10-28 23:14:02,370 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:14:02,449 INFO L129 PetriNetUnfolder]: 8/93 cut-off events. [2021-10-28 23:14:02,449 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:14:02,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 93 events. 8/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 209 event pairs, 0 based on Foata normal form. 3/96 useless extension candidates. Maximal degree in co-relation 93. Up to 9 conditions per place. [2021-10-28 23:14:02,452 INFO L132 encePairwiseOnDemand]: 57/63 looper letters, 7 selfloop transitions, 3 changer transitions 9/62 dead transitions. [2021-10-28 23:14:02,452 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 62 transitions, 165 flow [2021-10-28 23:14:02,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:14:02,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 23:14:02,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 392 transitions. [2021-10-28 23:14:02,480 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-10-28 23:14:02,481 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 392 transitions. [2021-10-28 23:14:02,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 392 transitions. [2021-10-28 23:14:02,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:14:02,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 392 transitions. [2021-10-28 23:14:02,492 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 23:14:02,500 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 23:14:02,500 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 23:14:02,503 INFO L186 Difference]: Start difference. First operand has 54 places, 50 transitions, 103 flow. Second operand 7 states and 392 transitions. [2021-10-28 23:14:02,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 62 transitions, 165 flow [2021-10-28 23:14:02,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 62 transitions, 164 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 23:14:02,511 INFO L242 Difference]: Finished difference. Result has 64 places, 50 transitions, 121 flow [2021-10-28 23:14:02,513 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=121, PETRI_PLACES=64, PETRI_TRANSITIONS=50} [2021-10-28 23:14:02,514 INFO L334 CegarLoopForPetriNet]: 54 programPoint places, 10 predicate places. [2021-10-28 23:14:02,515 INFO L470 AbstractCegarLoop]: Abstraction has has 64 places, 50 transitions, 121 flow [2021-10-28 23:14:02,515 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 23:14:02,516 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:14:02,516 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] [2021-10-28 23:14:02,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:14:02,517 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 23:14:02,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:14:02,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1396787847, now seen corresponding path program 1 times [2021-10-28 23:14:02,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:14:02,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153430587] [2021-10-28 23:14:02,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:14:02,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:14:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:14:02,656 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 23:14:02,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:14:02,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153430587] [2021-10-28 23:14:02,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153430587] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:14:02,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:14:02,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:14:02,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860524524] [2021-10-28 23:14:02,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:14:02,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:14:02,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:14:02,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:14:02,663 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 63 [2021-10-28 23:14:02,664 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 50 transitions, 121 flow. Second operand has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 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 23:14:02,664 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:14:02,665 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 63 [2021-10-28 23:14:02,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:14:02,781 INFO L129 PetriNetUnfolder]: 2/60 cut-off events. [2021-10-28 23:14:02,781 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-28 23:14:02,782 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 60 events. 2/60 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 4/63 useless extension candidates. Maximal degree in co-relation 96. Up to 11 conditions per place. [2021-10-28 23:14:02,782 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 15 selfloop transitions, 5 changer transitions 9/52 dead transitions. [2021-10-28 23:14:02,783 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 52 transitions, 175 flow [2021-10-28 23:14:02,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:14:02,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-28 23:14:02,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 208 transitions. [2021-10-28 23:14:02,786 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6603174603174603 [2021-10-28 23:14:02,787 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 208 transitions. [2021-10-28 23:14:02,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 208 transitions. [2021-10-28 23:14:02,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:14:02,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 208 transitions. [2021-10-28 23:14:02,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 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 23:14:02,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 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 23:14:02,792 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 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 23:14:02,792 INFO L186 Difference]: Start difference. First operand has 64 places, 50 transitions, 121 flow. Second operand 5 states and 208 transitions. [2021-10-28 23:14:02,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 52 transitions, 175 flow [2021-10-28 23:14:02,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 52 transitions, 161 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-10-28 23:14:02,796 INFO L242 Difference]: Finished difference. Result has 58 places, 43 transitions, 102 flow [2021-10-28 23:14:02,796 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=58, PETRI_TRANSITIONS=43} [2021-10-28 23:14:02,797 INFO L334 CegarLoopForPetriNet]: 54 programPoint places, 4 predicate places. [2021-10-28 23:14:02,797 INFO L470 AbstractCegarLoop]: Abstraction has has 58 places, 43 transitions, 102 flow [2021-10-28 23:14:02,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 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 23:14:02,798 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:14:02,798 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] [2021-10-28 23:14:02,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:14:02,799 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 23:14:02,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:14:02,800 INFO L85 PathProgramCache]: Analyzing trace with hash -150940430, now seen corresponding path program 1 times [2021-10-28 23:14:02,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:14:02,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087097116] [2021-10-28 23:14:02,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:14:02,801 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:14:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:14:02,839 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:14:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:14:02,901 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:14:02,902 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:14:02,903 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:14:02,909 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 23:14:02,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:14:02,926 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 23:14:02,932 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 23:14:02,933 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:14:03,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:14:03 BasicIcfg [2021-10-28 23:14:03,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:14:03,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:14:03,008 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:14:03,008 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:14:03,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:14:01" (3/4) ... [2021-10-28 23:14:03,011 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 23:14:03,082 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d4439c-4733-42ae-822c-0bf89af60ac3/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:14:03,082 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:14:03,084 INFO L168 Benchmark]: Toolchain (without parser) took 2664.81 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 43.4 MB in the beginning and 70.5 MB in the end (delta: -27.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:14:03,085 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 79.7 MB. Free memory is still 61.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:14:03,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 649.81 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 43.2 MB in the beginning and 70.9 MB in the end (delta: -27.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:14:03,087 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.14 ms. Allocated memory is still 102.8 MB. Free memory was 70.9 MB in the beginning and 68.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:14:03,087 INFO L168 Benchmark]: Boogie Preprocessor took 28.30 ms. Allocated memory is still 102.8 MB. Free memory was 68.9 MB in the beginning and 67.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:14:03,088 INFO L168 Benchmark]: RCFGBuilder took 507.62 ms. Allocated memory is still 102.8 MB. Free memory was 67.7 MB in the beginning and 56.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:14:03,089 INFO L168 Benchmark]: TraceAbstraction took 1328.72 ms. Allocated memory is still 102.8 MB. Free memory was 55.6 MB in the beginning and 75.4 MB in the end (delta: -19.8 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:14:03,090 INFO L168 Benchmark]: Witness Printer took 74.15 ms. Allocated memory is still 102.8 MB. Free memory was 75.4 MB in the beginning and 70.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:14:03,094 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 79.7 MB. Free memory is still 61.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 649.81 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 43.2 MB in the beginning and 70.9 MB in the end (delta: -27.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.14 ms. Allocated memory is still 102.8 MB. Free memory was 70.9 MB in the beginning and 68.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.30 ms. Allocated memory is still 102.8 MB. Free memory was 68.9 MB in the beginning and 67.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 507.62 ms. Allocated memory is still 102.8 MB. Free memory was 67.7 MB in the beginning and 56.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1328.72 ms. Allocated memory is still 102.8 MB. Free memory was 55.6 MB in the beginning and 75.4 MB in the end (delta: -19.8 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. * Witness Printer took 74.15 ms. Allocated memory is still 102.8 MB. Free memory was 75.4 MB in the beginning and 70.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 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: [L675] 0 int glob1 = 0; VAL [glob1=0] [L676] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [glob1=0, mutex1={7:0}] [L677] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [glob1=0, mutex1={7:0}, mutex2={9:0}] [L690] 0 pthread_t id; VAL [glob1=0, mutex1={7:0}, mutex2={9:0}] [L691] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, mutex1={7:0}, mutex2={9:0}] [L681] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={7:0}, mutex2={9:0}] [L13] COND TRUE 0 !(cond) VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={7:0}, mutex2={9:0}] [L13] 0 reach_error() VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={7:0}, mutex2={9:0}] - UnprovableResult [Line: 691]: 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, 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: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 25 SDslu, 24 SDs, 0 SdLazy, 79 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=1, InterpolantAutomatonStates: 12, 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, 0.3s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 271 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 23:14:03,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d4439c-4733-42ae-822c-0bf89af60ac3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...