./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:54:46,629 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:54:46,705 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 07:54:46,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:54:46,712 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:54:46,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:54:46,738 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:54:46,739 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:54:46,740 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:54:46,741 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:54:46,742 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:54:46,742 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:54:46,743 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:54:46,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:54:46,744 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:54:46,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:54:46,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:54:46,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:54:46,747 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:54:46,747 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:54:46,748 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:54:46,749 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:54:46,749 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:54:46,750 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:54:46,750 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:54:46,751 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:54:46,752 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:54:46,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:54:46,753 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:54:46,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:54:46,754 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:54:46,754 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:54:46,755 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:54:46,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:54:46,756 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:54:46,756 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:54:46,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:54:46,757 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:54:46,758 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 [2023-11-19 07:54:47,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:54:47,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:54:47,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:54:47,085 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:54:47,087 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:54:47,088 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2023-11-19 07:54:50,425 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:54:50,769 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:54:50,769 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2023-11-19 07:54:50,788 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/data/bda9183b3/3626b609049c420db0d5136c789bebf3/FLAG51210495b [2023-11-19 07:54:50,800 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/data/bda9183b3/3626b609049c420db0d5136c789bebf3 [2023-11-19 07:54:50,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:54:50,804 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:54:50,806 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:50,806 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:54:50,812 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:54:50,813 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:50" (1/1) ... [2023-11-19 07:54:50,814 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69938c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:50, skipping insertion in model container [2023-11-19 07:54:50,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:50" (1/1) ... [2023-11-19 07:54:50,862 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:54:51,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:51,253 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:54:51,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:51,383 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:54:51,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:51 WrapperNode [2023-11-19 07:54:51,384 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:51,385 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:51,385 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:54:51,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:54:51,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:51" (1/1) ... [2023-11-19 07:54:51,427 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:51" (1/1) ... [2023-11-19 07:54:51,466 INFO L138 Inliner]: procedures = 162, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2023-11-19 07:54:51,467 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:51,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:54:51,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:54:51,469 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:54:51,479 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:51" (1/1) ... [2023-11-19 07:54:51,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:51" (1/1) ... [2023-11-19 07:54:51,488 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:51" (1/1) ... [2023-11-19 07:54:51,489 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:51" (1/1) ... [2023-11-19 07:54:51,506 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:51" (1/1) ... [2023-11-19 07:54:51,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:51" (1/1) ... [2023-11-19 07:54:51,513 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:51" (1/1) ... [2023-11-19 07:54:51,520 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:51" (1/1) ... [2023-11-19 07:54:51,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:54:51,528 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:54:51,528 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:54:51,529 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:54:51,530 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:51" (1/1) ... [2023-11-19 07:54:51,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:54:51,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:51,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:51,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:54:51,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:54:51,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:54:51,616 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:54:51,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:54:51,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:54:51,616 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 07:54:51,617 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 07:54:51,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:54:51,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:54:51,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:54:51,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:54:51,619 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:54:51,752 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:54:51,755 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:54:51,951 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:54:51,960 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:54:51,960 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:54:51,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:51 BoogieIcfgContainer [2023-11-19 07:54:51,999 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:54:52,002 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:54:52,002 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:54:52,006 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:54:52,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:54:50" (1/3) ... [2023-11-19 07:54:52,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ad207a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:52, skipping insertion in model container [2023-11-19 07:54:52,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:51" (2/3) ... [2023-11-19 07:54:52,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ad207a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:52, skipping insertion in model container [2023-11-19 07:54:52,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:51" (3/3) ... [2023-11-19 07:54:52,025 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_neg.i [2023-11-19 07:54:52,060 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:54:52,060 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 07:54:52,060 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:54:52,145 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:54:52,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 167 flow [2023-11-19 07:54:52,228 INFO L124 PetriNetUnfolderBase]: 2/79 cut-off events. [2023-11-19 07:54:52,228 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:54:52,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 79 events. 2/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2023-11-19 07:54:52,233 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 80 transitions, 167 flow [2023-11-19 07:54:52,237 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 74 transitions, 154 flow [2023-11-19 07:54:52,241 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:54:52,252 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 74 transitions, 154 flow [2023-11-19 07:54:52,255 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 74 transitions, 154 flow [2023-11-19 07:54:52,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 74 transitions, 154 flow [2023-11-19 07:54:52,303 INFO L124 PetriNetUnfolderBase]: 2/74 cut-off events. [2023-11-19 07:54:52,304 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:54:52,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 74 events. 2/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 68 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2023-11-19 07:54:52,307 INFO L119 LiptonReduction]: Number of co-enabled transitions 644 [2023-11-19 07:54:55,184 INFO L134 LiptonReduction]: Checked pairs total: 2216 [2023-11-19 07:54:55,184 INFO L136 LiptonReduction]: Total number of compositions: 69 [2023-11-19 07:54:55,213 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:54:55,220 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27996f1a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:54:55,220 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-19 07:54:55,222 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:54:55,223 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-19 07:54:55,223 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:54:55,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:54:55,224 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:54:55,224 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-19 07:54:55,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:55,230 INFO L85 PathProgramCache]: Analyzing trace with hash 285, now seen corresponding path program 1 times [2023-11-19 07:54:55,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:55,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596819739] [2023-11-19 07:54:55,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:55,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:55,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:55,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:55,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596819739] [2023-11-19 07:54:55,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596819739] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:55,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:55,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:54:55,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927669633] [2023-11-19 07:54:55,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:55,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:54:55,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:55,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:54:55,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:54:55,380 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 149 [2023-11-19 07:54:55,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 25 transitions, 56 flow. Second operand has 2 states, 2 states have (on average 75.5) internal successors, (151), 2 states have internal predecessors, (151), 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) [2023-11-19 07:54:55,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:54:55,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 149 [2023-11-19 07:54:55,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:54:55,437 INFO L124 PetriNetUnfolderBase]: 20/88 cut-off events. [2023-11-19 07:54:55,437 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:54:55,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 88 events. 20/88 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 305 event pairs, 20 based on Foata normal form. 5/71 useless extension candidates. Maximal degree in co-relation 133. Up to 54 conditions per place. [2023-11-19 07:54:55,440 INFO L140 encePairwiseOnDemand]: 145/149 looper letters, 12 selfloop transitions, 0 changer transitions 1/20 dead transitions. [2023-11-19 07:54:55,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 72 flow [2023-11-19 07:54:55,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:54:55,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:54:55,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 167 transitions. [2023-11-19 07:54:55,454 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5604026845637584 [2023-11-19 07:54:55,455 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 167 transitions. [2023-11-19 07:54:55,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 167 transitions. [2023-11-19 07:54:55,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:54:55,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 167 transitions. [2023-11-19 07:54:55,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 83.5) internal successors, (167), 2 states have internal predecessors, (167), 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) [2023-11-19 07:54:55,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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) [2023-11-19 07:54:55,468 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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) [2023-11-19 07:54:55,470 INFO L175 Difference]: Start difference. First operand has 27 places, 25 transitions, 56 flow. Second operand 2 states and 167 transitions. [2023-11-19 07:54:55,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 72 flow [2023-11-19 07:54:55,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 68 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:54:55,475 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 40 flow [2023-11-19 07:54:55,477 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2023-11-19 07:54:55,481 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -4 predicate places. [2023-11-19 07:54:55,481 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 40 flow [2023-11-19 07:54:55,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 75.5) internal successors, (151), 2 states have internal predecessors, (151), 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) [2023-11-19 07:54:55,482 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:54:55,482 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:54:55,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:54:55,483 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-19 07:54:55,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:55,483 INFO L85 PathProgramCache]: Analyzing trace with hash 8644747, now seen corresponding path program 1 times [2023-11-19 07:54:55,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:55,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289786232] [2023-11-19 07:54:55,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:55,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:55,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:54:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:55,590 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:54:55,590 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:54:55,592 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-11-19 07:54:55,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-11-19 07:54:55,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-11-19 07:54:55,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-11-19 07:54:55,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-11-19 07:54:55,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2023-11-19 07:54:55,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-11-19 07:54:55,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:54:55,597 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:54:55,605 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:54:55,605 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:54:55,622 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated [2023-11-19 07:54:55,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:54:55 BasicIcfg [2023-11-19 07:54:55,635 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:54:55,635 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:54:55,636 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:54:55,636 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:54:55,637 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:51" (3/4) ... [2023-11-19 07:54:55,639 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:54:55,640 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:54:55,641 INFO L158 Benchmark]: Toolchain (without parser) took 4836.64ms. Allocated memory was 178.3MB in the beginning and 220.2MB in the end (delta: 41.9MB). Free memory was 134.2MB in the beginning and 134.0MB in the end (delta: 240.5kB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2023-11-19 07:54:55,643 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory was 63.3MB in the beginning and 63.2MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:54:55,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 578.35ms. Allocated memory is still 178.3MB. Free memory was 134.2MB in the beginning and 115.2MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:54:55,647 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.44ms. Allocated memory is still 178.3MB. Free memory was 115.2MB in the beginning and 113.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:54:55,647 INFO L158 Benchmark]: Boogie Preprocessor took 59.18ms. Allocated memory is still 178.3MB. Free memory was 113.0MB in the beginning and 111.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:54:55,651 INFO L158 Benchmark]: RCFGBuilder took 471.37ms. Allocated memory is still 178.3MB. Free memory was 111.6MB in the beginning and 150.4MB in the end (delta: -38.8MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2023-11-19 07:54:55,652 INFO L158 Benchmark]: TraceAbstraction took 3632.69ms. Allocated memory was 178.3MB in the beginning and 220.2MB in the end (delta: 41.9MB). Free memory was 149.7MB in the beginning and 135.0MB in the end (delta: 14.7MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2023-11-19 07:54:55,652 INFO L158 Benchmark]: Witness Printer took 4.50ms. Allocated memory is still 220.2MB. Free memory was 135.0MB in the beginning and 134.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:54:55,660 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory was 63.3MB in the beginning and 63.2MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 578.35ms. Allocated memory is still 178.3MB. Free memory was 134.2MB in the beginning and 115.2MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.44ms. Allocated memory is still 178.3MB. Free memory was 115.2MB in the beginning and 113.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.18ms. Allocated memory is still 178.3MB. Free memory was 113.0MB in the beginning and 111.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 471.37ms. Allocated memory is still 178.3MB. Free memory was 111.6MB in the beginning and 150.4MB in the end (delta: -38.8MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3632.69ms. Allocated memory was 178.3MB in the beginning and 220.2MB in the end (delta: 41.9MB). Free memory was 149.7MB in the beginning and 135.0MB in the end (delta: 14.7MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. * Witness Printer took 4.50ms. Allocated memory is still 220.2MB. Free memory was 135.0MB in the beginning and 134.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 76 PlacesBefore, 27 PlacesAfterwards, 74 TransitionsBefore, 25 TransitionsAfterwards, 644 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 0 ChoiceCompositions, 69 TotalNumberOfCompositions, 2216 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1014, independent: 860, independent conditional: 0, independent unconditional: 860, dependent: 154, dependent conditional: 0, dependent unconditional: 154, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 389, independent: 358, independent conditional: 0, independent unconditional: 358, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1014, independent: 502, independent conditional: 0, independent unconditional: 502, dependent: 123, dependent conditional: 0, dependent unconditional: 123, unknown: 389, unknown conditional: 0, unknown unconditional: 389] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 34, Positive conditional cache size: 0, Positive unconditional cache size: 34, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 0)) [L19] COND TRUE 0 !(cond) [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) [L18] 0 __assert_fail ("0", "13-privatized_19-publish-precision_unknown_1_neg.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [arg={0:0}, glob1=0, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 95 locations, 7 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: 3.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 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 could not prove your program: unable to determine feasibility of some traces [2023-11-19 07:54:55,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:54:58,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:54:58,463 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-19 07:54:58,471 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:54:58,472 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:54:58,515 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:54:58,516 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:54:58,517 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:54:58,518 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:54:58,523 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:54:58,524 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:54:58,524 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:54:58,525 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:54:58,527 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:54:58,527 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:54:58,528 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:54:58,528 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:54:58,528 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:54:58,529 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:54:58,529 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:54:58,530 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:54:58,530 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:54:58,531 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:54:58,531 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:54:58,531 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:54:58,532 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:54:58,532 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:54:58,533 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:54:58,534 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:54:58,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:54:58,535 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:54:58,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:54:58,536 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:54:58,537 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:54:58,537 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:54:58,537 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:54:58,537 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:54:58,538 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:54:58,538 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:54:58,539 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:54:58,539 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:54:58,540 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 [2023-11-19 07:54:59,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:54:59,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:54:59,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:54:59,039 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:54:59,039 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:54:59,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2023-11-19 07:55:02,153 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:02,497 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:02,498 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2023-11-19 07:55:02,517 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/data/457e77a5a/2464a1cc45164672a71c316493fd6634/FLAG2accab278 [2023-11-19 07:55:02,533 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/data/457e77a5a/2464a1cc45164672a71c316493fd6634 [2023-11-19 07:55:02,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:02,537 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:02,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:02,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:02,544 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:02,545 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:02" (1/1) ... [2023-11-19 07:55:02,547 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@487c2844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:02, skipping insertion in model container [2023-11-19 07:55:02,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:02" (1/1) ... [2023-11-19 07:55:02,595 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:03,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:03,081 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:55:03,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:03,218 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:55:03,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:03 WrapperNode [2023-11-19 07:55:03,219 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:03,220 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:03,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:55:03,221 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:55:03,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:03" (1/1) ... [2023-11-19 07:55:03,262 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:03" (1/1) ... [2023-11-19 07:55:03,292 INFO L138 Inliner]: procedures = 166, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2023-11-19 07:55:03,292 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:03,293 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:55:03,293 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:55:03,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:55:03,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:03" (1/1) ... [2023-11-19 07:55:03,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:03" (1/1) ... [2023-11-19 07:55:03,311 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:03" (1/1) ... [2023-11-19 07:55:03,312 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:03" (1/1) ... [2023-11-19 07:55:03,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:03" (1/1) ... [2023-11-19 07:55:03,325 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:03" (1/1) ... [2023-11-19 07:55:03,328 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:03" (1/1) ... [2023-11-19 07:55:03,330 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:03" (1/1) ... [2023-11-19 07:55:03,334 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:55:03,335 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:55:03,335 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:55:03,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:55:03,336 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:03" (1/1) ... [2023-11-19 07:55:03,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:03,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:03,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:03,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:55:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:55:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:55:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:55:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:55:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 07:55:03,421 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 07:55:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:55:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:55:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:55:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 07:55:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:55:03,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:55:03,424 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:55:03,675 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:55:03,679 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:55:03,984 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:55:03,993 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:55:03,993 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:55:03,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:03 BoogieIcfgContainer [2023-11-19 07:55:03,998 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:55:04,001 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:55:04,001 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:55:04,018 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:55:04,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:55:02" (1/3) ... [2023-11-19 07:55:04,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41fdde92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:04, skipping insertion in model container [2023-11-19 07:55:04,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:03" (2/3) ... [2023-11-19 07:55:04,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41fdde92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:04, skipping insertion in model container [2023-11-19 07:55:04,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:03" (3/3) ... [2023-11-19 07:55:04,022 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_neg.i [2023-11-19 07:55:04,040 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:55:04,041 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 07:55:04,041 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:55:04,091 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:55:04,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 81 transitions, 169 flow [2023-11-19 07:55:04,166 INFO L124 PetriNetUnfolderBase]: 2/80 cut-off events. [2023-11-19 07:55:04,166 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:55:04,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 80 events. 2/80 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2023-11-19 07:55:04,171 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 81 transitions, 169 flow [2023-11-19 07:55:04,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 75 transitions, 156 flow [2023-11-19 07:55:04,179 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:55:04,189 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 75 transitions, 156 flow [2023-11-19 07:55:04,192 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 75 transitions, 156 flow [2023-11-19 07:55:04,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 75 transitions, 156 flow [2023-11-19 07:55:04,212 INFO L124 PetriNetUnfolderBase]: 2/75 cut-off events. [2023-11-19 07:55:04,212 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:55:04,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 75 events. 2/75 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 68 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2023-11-19 07:55:04,214 INFO L119 LiptonReduction]: Number of co-enabled transitions 644 [2023-11-19 07:55:09,926 INFO L134 LiptonReduction]: Checked pairs total: 1923 [2023-11-19 07:55:09,927 INFO L136 LiptonReduction]: Total number of compositions: 65 [2023-11-19 07:55:09,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:55:09,968 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4a8cff7e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:55:09,968 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-19 07:55:09,970 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:55:09,970 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:55:09,971 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:55:09,971 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:09,971 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:55:09,972 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-19 07:55:09,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:09,977 INFO L85 PathProgramCache]: Analyzing trace with hash 283, now seen corresponding path program 1 times [2023-11-19 07:55:09,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:55:09,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994094144] [2023-11-19 07:55:09,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:09,991 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:55:09,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:55:09,994 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:55:10,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 07:55:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:10,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:55:10,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:10,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:10,074 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:55:10,075 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:55:10,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994094144] [2023-11-19 07:55:10,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994094144] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:10,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:10,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:55:10,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026536440] [2023-11-19 07:55:10,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:10,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:55:10,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:55:10,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:55:10,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:55:10,128 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 146 [2023-11-19 07:55:10,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 52 flow. Second operand has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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) [2023-11-19 07:55:10,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:10,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 146 [2023-11-19 07:55:10,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:10,214 INFO L124 PetriNetUnfolderBase]: 20/88 cut-off events. [2023-11-19 07:55:10,214 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:55:10,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 88 events. 20/88 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 303 event pairs, 20 based on Foata normal form. 5/71 useless extension candidates. Maximal degree in co-relation 133. Up to 54 conditions per place. [2023-11-19 07:55:10,216 INFO L140 encePairwiseOnDemand]: 143/146 looper letters, 12 selfloop transitions, 0 changer transitions 1/20 dead transitions. [2023-11-19 07:55:10,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 72 flow [2023-11-19 07:55:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:55:10,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:55:10,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 168 transitions. [2023-11-19 07:55:10,238 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5753424657534246 [2023-11-19 07:55:10,239 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 168 transitions. [2023-11-19 07:55:10,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 168 transitions. [2023-11-19 07:55:10,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:10,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 168 transitions. [2023-11-19 07:55:10,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 84.0) internal successors, (168), 2 states have internal predecessors, (168), 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) [2023-11-19 07:55:10,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 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) [2023-11-19 07:55:10,253 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 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) [2023-11-19 07:55:10,255 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 52 flow. Second operand 2 states and 168 transitions. [2023-11-19 07:55:10,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 72 flow [2023-11-19 07:55:10,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 68 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:55:10,260 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 40 flow [2023-11-19 07:55:10,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2023-11-19 07:55:10,267 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -3 predicate places. [2023-11-19 07:55:10,267 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 40 flow [2023-11-19 07:55:10,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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) [2023-11-19 07:55:10,267 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:10,268 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:55:10,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:10,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:55:10,470 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-19 07:55:10,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:10,471 INFO L85 PathProgramCache]: Analyzing trace with hash 8587248, now seen corresponding path program 1 times [2023-11-19 07:55:10,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:55:10,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524881324] [2023-11-19 07:55:10,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:10,472 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:55:10,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:55:10,474 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:55:10,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 07:55:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:10,568 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:10,615 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-19 07:55:10,615 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:55:10,617 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-11-19 07:55:10,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-11-19 07:55:10,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-11-19 07:55:10,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-11-19 07:55:10,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-11-19 07:55:10,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2023-11-19 07:55:10,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-11-19 07:55:10,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:10,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:55:10,822 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:55:10,828 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:55:10,828 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:55:10,843 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated [2023-11-19 07:55:10,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:55:10 BasicIcfg [2023-11-19 07:55:10,851 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:55:10,852 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:55:10,852 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:55:10,853 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:55:10,853 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:03" (3/4) ... [2023-11-19 07:55:10,856 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:55:10,857 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:55:10,858 INFO L158 Benchmark]: Toolchain (without parser) took 8320.43ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 41.8MB in the beginning and 48.5MB in the end (delta: -6.8MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2023-11-19 07:55:10,859 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 67.1MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:10,859 INFO L158 Benchmark]: CACSL2BoogieTranslator took 680.24ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 41.6MB in the beginning and 59.8MB in the end (delta: -18.2MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:10,860 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.26ms. Allocated memory is still 90.2MB. Free memory was 59.8MB in the beginning and 57.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:10,861 INFO L158 Benchmark]: Boogie Preprocessor took 41.01ms. Allocated memory is still 90.2MB. Free memory was 57.8MB in the beginning and 56.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:10,862 INFO L158 Benchmark]: RCFGBuilder took 663.56ms. Allocated memory is still 90.2MB. Free memory was 56.1MB in the beginning and 41.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 07:55:10,862 INFO L158 Benchmark]: TraceAbstraction took 6850.81ms. Allocated memory is still 90.2MB. Free memory was 40.5MB in the beginning and 49.2MB in the end (delta: -8.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:10,863 INFO L158 Benchmark]: Witness Printer took 5.06ms. Allocated memory is still 90.2MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:10,866 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 67.1MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 680.24ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 41.6MB in the beginning and 59.8MB in the end (delta: -18.2MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.26ms. Allocated memory is still 90.2MB. Free memory was 59.8MB in the beginning and 57.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.01ms. Allocated memory is still 90.2MB. Free memory was 57.8MB in the beginning and 56.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 663.56ms. Allocated memory is still 90.2MB. Free memory was 56.1MB in the beginning and 41.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6850.81ms. Allocated memory is still 90.2MB. Free memory was 40.5MB in the beginning and 49.2MB in the end (delta: -8.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.06ms. Allocated memory is still 90.2MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.7s, 77 PlacesBefore, 26 PlacesAfterwards, 75 TransitionsBefore, 23 TransitionsAfterwards, 644 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 65 TotalNumberOfCompositions, 1923 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 829, independent: 690, independent conditional: 0, independent unconditional: 690, dependent: 139, dependent conditional: 0, dependent unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 357, independent: 327, independent conditional: 0, independent unconditional: 327, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 829, independent: 363, independent conditional: 0, independent unconditional: 363, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 357, unknown conditional: 0, unknown unconditional: 357] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={7:0}, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 0)) [L19] COND TRUE 0 !(cond) [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) [L18] 0 __assert_fail ("0", "13-privatized_19-publish-precision_unknown_1_neg.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [arg={0:0}, glob1=0, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 96 locations, 7 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: 6.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3 ConjunctsInSsa, 1 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 could not prove your program: unable to determine feasibility of some traces [2023-11-19 07:55:10,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ee4acc-e366-4a64-af72-c9f12ada65bd/bin/uautomizer-verify-uCwYo4JHxu/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 Result: UNKNOWN: Overapproximated counterexample