./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c001e-f0a1-4ab7-b5e7-68afc388cc01/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c001e-f0a1-4ab7-b5e7-68afc388cc01/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c001e-f0a1-4ab7-b5e7-68afc388cc01/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c001e-f0a1-4ab7-b5e7-68afc388cc01/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c001e-f0a1-4ab7-b5e7-68afc388cc01/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c001e-f0a1-4ab7-b5e7-68afc388cc01/bin/uautomizer-DrprNOufMa --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 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:43:30,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:43:30,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:43:30,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:43:30,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:43:30,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:43:30,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:43:30,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:43:30,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:43:30,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:43:30,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:43:30,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:43:30,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:43:30,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:43:30,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:43:30,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:43:30,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:43:30,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:43:30,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:43:30,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:43:30,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:43:30,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:43:30,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:43:30,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:43:30,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:43:30,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:43:30,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:43:30,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:43:30,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:43:30,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:43:30,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:43:30,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:43:30,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:43:30,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:43:30,554 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:43:30,554 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:43:30,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:43:30,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:43:30,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:43:30,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:43:30,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:43:30,557 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c001e-f0a1-4ab7-b5e7-68afc388cc01/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 18:43:30,580 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:43:30,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:43:30,581 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:43:30,581 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:43:30,582 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:43:30,582 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:43:30,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:43:30,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:43:30,583 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:43:30,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:43:30,583 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:43:30,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:43:30,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:43:30,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:43:30,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:43:30,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:43:30,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:43:30,585 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:43:30,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:43:30,585 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:43:30,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:43:30,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:43:30,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:43:30,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:43:30,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:43:30,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:43:30,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:43:30,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:43:30,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:43:30,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:43:30,587 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 18:43:30,587 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 18:43:30,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:43:30,588 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:43:30,588 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_728c001e-f0a1-4ab7-b5e7-68afc388cc01/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c001e-f0a1-4ab7-b5e7-68afc388cc01/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 [2021-12-06 18:43:30,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:43:30,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:43:30,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:43:30,782 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:43:30,782 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:43:30,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c001e-f0a1-4ab7-b5e7-68afc388cc01/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2021-12-06 18:43:30,830 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c001e-f0a1-4ab7-b5e7-68afc388cc01/bin/uautomizer-DrprNOufMa/data/a273dda4f/f37d8ae6f27046f1ac296f830fcf6fe5/FLAG77e624fde [2021-12-06 18:43:31,253 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:43:31,253 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c001e-f0a1-4ab7-b5e7-68afc388cc01/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2021-12-06 18:43:31,266 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c001e-f0a1-4ab7-b5e7-68afc388cc01/bin/uautomizer-DrprNOufMa/data/a273dda4f/f37d8ae6f27046f1ac296f830fcf6fe5/FLAG77e624fde [2021-12-06 18:43:31,278 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c001e-f0a1-4ab7-b5e7-68afc388cc01/bin/uautomizer-DrprNOufMa/data/a273dda4f/f37d8ae6f27046f1ac296f830fcf6fe5 [2021-12-06 18:43:31,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:43:31,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:43:31,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:43:31,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:43:31,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:43:31,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:43:31" (1/1) ... [2021-12-06 18:43:31,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7deac34b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:31, skipping insertion in model container [2021-12-06 18:43:31,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:43:31" (1/1) ... [2021-12-06 18:43:31,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:43:31,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:43:31,463 WARN L230 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_728c001e-f0a1-4ab7-b5e7-68afc388cc01/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2021-12-06 18:43:31,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:43:31,557 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:43:31,565 WARN L230 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_728c001e-f0a1-4ab7-b5e7-68afc388cc01/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2021-12-06 18:43:31,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:43:31,614 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:43:31,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:31 WrapperNode [2021-12-06 18:43:31,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:43:31,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:43:31,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:43:31,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:43:31,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:31" (1/1) ... [2021-12-06 18:43:31,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:31" (1/1) ... [2021-12-06 18:43:31,650 INFO L137 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2021-12-06 18:43:31,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:43:31,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:43:31,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:43:31,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:43:31,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:31" (1/1) ... [2021-12-06 18:43:31,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:31" (1/1) ... [2021-12-06 18:43:31,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:31" (1/1) ... [2021-12-06 18:43:31,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:31" (1/1) ... [2021-12-06 18:43:31,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:31" (1/1) ... [2021-12-06 18:43:31,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:31" (1/1) ... [2021-12-06 18:43:31,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:31" (1/1) ... [2021-12-06 18:43:31,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:43:31,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:43:31,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:43:31,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:43:31,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:31" (1/1) ... [2021-12-06 18:43:31,681 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:43:31,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c001e-f0a1-4ab7-b5e7-68afc388cc01/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:43:31,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c001e-f0a1-4ab7-b5e7-68afc388cc01/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:43:31,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c001e-f0a1-4ab7-b5e7-68afc388cc01/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:43:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 18:43:31,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 18:43:31,731 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-06 18:43:31,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:43:31,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 18:43:31,731 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-06 18:43:31,731 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-06 18:43:31,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 18:43:31,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:43:31,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:43:31,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:43:31,732 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-06 18:43:31,815 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:43:31,817 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:43:31,927 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:43:31,934 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:43:31,934 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 18:43:31,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:43:31 BoogieIcfgContainer [2021-12-06 18:43:31,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:43:31,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:43:31,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:43:31,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:43:31,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:43:31" (1/3) ... [2021-12-06 18:43:31,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22b6db88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:43:31, skipping insertion in model container [2021-12-06 18:43:31,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:31" (2/3) ... [2021-12-06 18:43:31,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22b6db88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:43:31, skipping insertion in model container [2021-12-06 18:43:31,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:43:31" (3/3) ... [2021-12-06 18:43:31,944 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2021-12-06 18:43:31,949 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 18:43:31,949 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:43:31,950 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 18:43:31,950 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 18:43:31,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,974 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,974 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,974 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,975 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,975 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,975 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,975 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,976 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,976 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,976 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,976 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,977 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,977 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,977 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,977 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,978 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,978 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,978 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,979 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,979 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,979 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,979 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,980 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,980 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,980 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,980 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,981 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,981 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,981 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,981 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,981 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,982 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,982 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,983 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,983 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,983 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,983 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,986 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,986 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,986 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,986 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,986 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,987 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,987 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,987 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,987 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:43:31,992 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-06 18:43:32,037 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:43:32,042 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 [2021-12-06 18:43:32,043 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-06 18:43:32,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 64 transitions, 136 flow [2021-12-06 18:43:32,086 INFO L129 PetriNetUnfolder]: 2/63 cut-off events. [2021-12-06 18:43:32,086 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 18:43:32,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 63 events. 2/63 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2021-12-06 18:43:32,089 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 64 transitions, 136 flow [2021-12-06 18:43:32,094 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 47 transitions, 97 flow [2021-12-06 18:43:32,108 INFO L129 PetriNetUnfolder]: 1/46 cut-off events. [2021-12-06 18:43:32,108 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 18:43:32,108 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:43:32,109 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] [2021-12-06 18:43:32,110 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:43:32,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:43:32,115 INFO L85 PathProgramCache]: Analyzing trace with hash -392670942, now seen corresponding path program 1 times [2021-12-06 18:43:32,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:43:32,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701633611] [2021-12-06 18:43:32,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:43:32,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:43:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:43:32,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:43:32,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:43:32,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701633611] [2021-12-06 18:43:32,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701633611] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:43:32,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:43:32,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:43:32,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719163237] [2021-12-06 18:43:32,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:43:32,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:43:32,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:43:32,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:43:32,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:43:32,386 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 64 [2021-12-06 18:43:32,390 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 47 transitions, 97 flow. Second operand has 6 states, 6 states have (on average 49.5) internal successors, (297), 6 states have internal predecessors, (297), 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) [2021-12-06 18:43:32,390 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:43:32,390 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 64 [2021-12-06 18:43:32,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:43:32,444 INFO L129 PetriNetUnfolder]: 0/52 cut-off events. [2021-12-06 18:43:32,444 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 18:43:32,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 52 events. 0/52 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-12-06 18:43:32,445 INFO L132 encePairwiseOnDemand]: 58/64 looper letters, 8 selfloop transitions, 2 changer transitions 5/51 dead transitions. [2021-12-06 18:43:32,445 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 51 transitions, 135 flow [2021-12-06 18:43:32,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:43:32,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 18:43:32,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 304 transitions. [2021-12-06 18:43:32,460 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2021-12-06 18:43:32,461 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 304 transitions. [2021-12-06 18:43:32,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 304 transitions. [2021-12-06 18:43:32,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:43:32,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 304 transitions. [2021-12-06 18:43:32,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 50.666666666666664) internal successors, (304), 6 states have internal predecessors, (304), 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) [2021-12-06 18:43:32,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 64.0) internal successors, (448), 7 states have internal predecessors, (448), 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) [2021-12-06 18:43:32,476 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 64.0) internal successors, (448), 7 states have internal predecessors, (448), 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) [2021-12-06 18:43:32,477 INFO L186 Difference]: Start difference. First operand has 50 places, 47 transitions, 97 flow. Second operand 6 states and 304 transitions. [2021-12-06 18:43:32,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 51 transitions, 135 flow [2021-12-06 18:43:32,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 51 transitions, 134 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 18:43:32,482 INFO L242 Difference]: Finished difference. Result has 58 places, 46 transitions, 108 flow [2021-12-06 18:43:32,483 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=108, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2021-12-06 18:43:32,485 INFO L334 CegarLoopForPetriNet]: 50 programPoint places, 8 predicate places. [2021-12-06 18:43:32,486 INFO L470 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 108 flow [2021-12-06 18:43:32,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.5) internal successors, (297), 6 states have internal predecessors, (297), 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) [2021-12-06 18:43:32,486 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:43:32,486 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] [2021-12-06 18:43:32,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 18:43:32,487 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:43:32,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:43:32,487 INFO L85 PathProgramCache]: Analyzing trace with hash -140340200, now seen corresponding path program 1 times [2021-12-06 18:43:32,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:43:32,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177967163] [2021-12-06 18:43:32,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:43:32,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:43:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:43:32,509 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:43:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:43:32,540 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:43:32,540 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 18:43:32,542 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-12-06 18:43:32,543 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-12-06 18:43:32,543 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-12-06 18:43:32,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 18:43:32,546 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-06 18:43:32,550 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-06 18:43:32,550 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 18:43:32,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:43:32 BasicIcfg [2021-12-06 18:43:32,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 18:43:32,573 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 18:43:32,573 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 18:43:32,573 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 18:43:32,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:43:31" (3/4) ... [2021-12-06 18:43:32,574 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-06 18:43:32,605 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c001e-f0a1-4ab7-b5e7-68afc388cc01/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 18:43:32,606 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 18:43:32,606 INFO L158 Benchmark]: Toolchain (without parser) took 1324.29ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 66.9MB in the end (delta: 13.3MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2021-12-06 18:43:32,606 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory was 98.0MB in the beginning and 97.9MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:43:32,607 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.15ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 84.5MB in the end (delta: -4.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 18:43:32,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.53ms. Allocated memory is still 117.4MB. Free memory was 84.5MB in the beginning and 82.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:43:32,607 INFO L158 Benchmark]: Boogie Preprocessor took 21.15ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 81.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:43:32,608 INFO L158 Benchmark]: RCFGBuilder took 262.73ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 69.8MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 18:43:32,608 INFO L158 Benchmark]: TraceAbstraction took 634.92ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 70.4MB in the end (delta: -1.0MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. [2021-12-06 18:43:32,608 INFO L158 Benchmark]: Witness Printer took 32.85ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 66.9MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:43:32,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory was 98.0MB in the beginning and 97.9MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.15ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 84.5MB in the end (delta: -4.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.53ms. Allocated memory is still 117.4MB. Free memory was 84.5MB in the beginning and 82.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.15ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 81.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 262.73ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 69.8MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 634.92ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 70.4MB in the end (delta: -1.0MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. * Witness Printer took 32.85ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 66.9MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int glob1 = 0; VAL [glob1=0] [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [glob1=0, mutex1={3:0}] [L697] 0 pthread_t id; VAL [glob1=0, id={5:0}, mutex1={3:0}] [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=42, arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=42] [L687] COND TRUE 1 t == 42 VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=42] [L688] 1 glob1 = 1 VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=42] [L690] 1 t = glob1 VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=1] [L691] CALL 1 __VERIFIER_assert(!(t == 1)) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] - UnprovableResult [Line: 698]: 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, 87 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 7 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-12-06 18:43:32,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c001e-f0a1-4ab7-b5e7-68afc388cc01/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE