./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.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_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/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_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/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_764580f0-0e36-46ee-9530-33ba0b0fb36f/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 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:54:51,908 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:54:51,985 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 07:54:51,991 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:54:51,992 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:54:52,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:54:52,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:54:52,023 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:54:52,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:54:52,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:54:52,026 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:54:52,026 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:54:52,027 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:54:52,028 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:54:52,028 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:54:52,029 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:54:52,029 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:54:52,030 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:54:52,031 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:54:52,031 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:54:52,032 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:54:52,032 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:54:52,033 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:54:52,033 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:54:52,034 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:54:52,034 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:54:52,035 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:54:52,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:54:52,036 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:54:52,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:54:52,037 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:54:52,037 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:54:52,037 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:54:52,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:54:52,038 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:54:52,039 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:54:52,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:54:52,040 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:54:52,040 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_764580f0-0e36-46ee-9530-33ba0b0fb36f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d [2023-11-19 07:54:52,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:54:52,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:54:52,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:54:52,338 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:54:52,339 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:54:52,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2023-11-19 07:54:55,514 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:54:55,867 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:54:55,868 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2023-11-19 07:54:55,890 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/data/6137229e5/3b0c310adccf48deb46d9a32b0660f11/FLAGd858c81d3 [2023-11-19 07:54:55,908 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/data/6137229e5/3b0c310adccf48deb46d9a32b0660f11 [2023-11-19 07:54:55,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:54:55,919 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:54:55,920 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:55,921 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:54:55,926 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:54:55,927 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:55" (1/1) ... [2023-11-19 07:54:55,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ebf6449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:55, skipping insertion in model container [2023-11-19 07:54:55,929 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:55" (1/1) ... [2023-11-19 07:54:55,975 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:54:56,347 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:56,362 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:54:56,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:56,504 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:54:56,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56 WrapperNode [2023-11-19 07:54:56,505 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:56,506 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:56,506 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:54:56,506 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:54:56,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,529 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,552 INFO L138 Inliner]: procedures = 162, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2023-11-19 07:54:56,552 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:56,553 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:54:56,553 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:54:56,553 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:54:56,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,574 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,590 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,596 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,599 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:54:56,603 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:54:56,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:54:56,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:54:56,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:54:56,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:56,644 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:56,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:54:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:54:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:54:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:54:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:54:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:54:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 07:54:56,683 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 07:54:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:54:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:54:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:54:56,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:54:56,685 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 07:54:56,819 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:54:56,822 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:54:57,057 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:54:57,066 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:54:57,066 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:54:57,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:57 BoogieIcfgContainer [2023-11-19 07:54:57,071 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:54:57,074 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:54:57,074 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:54:57,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:54:57,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:54:55" (1/3) ... [2023-11-19 07:54:57,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57b04d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:57, skipping insertion in model container [2023-11-19 07:54:57,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (2/3) ... [2023-11-19 07:54:57,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57b04d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:57, skipping insertion in model container [2023-11-19 07:54:57,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:57" (3/3) ... [2023-11-19 07:54:57,081 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_pos.i [2023-11-19 07:54:57,103 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:54:57,103 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 07:54:57,103 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:54:57,155 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:54:57,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 167 flow [2023-11-19 07:54:57,240 INFO L124 PetriNetUnfolderBase]: 2/79 cut-off events. [2023-11-19 07:54:57,241 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:54:57,245 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 07:54:57,246 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 80 transitions, 167 flow [2023-11-19 07:54:57,251 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 74 transitions, 154 flow [2023-11-19 07:54:57,255 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:54:57,266 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 74 transitions, 154 flow [2023-11-19 07:54:57,269 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 74 transitions, 154 flow [2023-11-19 07:54:57,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 74 transitions, 154 flow [2023-11-19 07:54:57,306 INFO L124 PetriNetUnfolderBase]: 2/74 cut-off events. [2023-11-19 07:54:57,310 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:54:57,311 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 07:54:57,314 INFO L119 LiptonReduction]: Number of co-enabled transitions 644 [2023-11-19 07:55:00,238 INFO L134 LiptonReduction]: Checked pairs total: 2216 [2023-11-19 07:55:00,240 INFO L136 LiptonReduction]: Total number of compositions: 69 [2023-11-19 07:55:00,293 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:55:00,301 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;@7ed3ecba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:55:00,301 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-19 07:55:00,303 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:55:00,303 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-19 07:55:00,304 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:55:00,304 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:00,305 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:55:00,305 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 07:55:00,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:00,311 INFO L85 PathProgramCache]: Analyzing trace with hash 285, now seen corresponding path program 1 times [2023-11-19 07:55:00,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:00,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232327107] [2023-11-19 07:55:00,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:00,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:00,443 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 07:55:00,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:00,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232327107] [2023-11-19 07:55:00,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232327107] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:00,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:00,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:55:00,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857882303] [2023-11-19 07:55:00,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:00,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:55:00,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:00,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:55:00,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:55:00,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 149 [2023-11-19 07:55:00,500 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 07:55:00,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:00,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 149 [2023-11-19 07:55:00,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:00,583 INFO L124 PetriNetUnfolderBase]: 20/88 cut-off events. [2023-11-19 07:55:00,584 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:55:00,585 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 07:55:00,588 INFO L140 encePairwiseOnDemand]: 145/149 looper letters, 12 selfloop transitions, 0 changer transitions 1/20 dead transitions. [2023-11-19 07:55:00,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 72 flow [2023-11-19 07:55:00,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:55:00,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:55:00,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 167 transitions. [2023-11-19 07:55:00,607 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5604026845637584 [2023-11-19 07:55:00,608 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 167 transitions. [2023-11-19 07:55:00,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 167 transitions. [2023-11-19 07:55:00,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:00,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 167 transitions. [2023-11-19 07:55:00,624 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 07:55:00,631 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 07:55:00,632 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 07:55:00,635 INFO L175 Difference]: Start difference. First operand has 27 places, 25 transitions, 56 flow. Second operand 2 states and 167 transitions. [2023-11-19 07:55:00,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 72 flow [2023-11-19 07:55:00,639 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 07:55:00,641 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 40 flow [2023-11-19 07:55:00,644 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 07:55:00,649 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -4 predicate places. [2023-11-19 07:55:00,649 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 40 flow [2023-11-19 07:55:00,650 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 07:55:00,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:00,650 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:55:00,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:55:00,651 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 07:55:00,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:00,652 INFO L85 PathProgramCache]: Analyzing trace with hash 8644747, now seen corresponding path program 1 times [2023-11-19 07:55:00,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:00,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783353408] [2023-11-19 07:55:00,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:00,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:00,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:00,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:00,777 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:00,778 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:55:00,780 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-11-19 07:55:00,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-11-19 07:55:00,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-11-19 07:55:00,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-11-19 07:55:00,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-11-19 07:55:00,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2023-11-19 07:55:00,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-11-19 07:55:00,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:55:00,785 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:55:00,791 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:55:00,791 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:55:00,814 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated [2023-11-19 07:55:00,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:55:00 BasicIcfg [2023-11-19 07:55:00,828 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:55:00,829 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:55:00,829 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:55:00,830 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:55:00,831 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:57" (3/4) ... [2023-11-19 07:55:00,833 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:55:00,835 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:55:00,836 INFO L158 Benchmark]: Toolchain (without parser) took 4917.06ms. Allocated memory was 115.3MB in the beginning and 151.0MB in the end (delta: 35.7MB). Free memory was 69.1MB in the beginning and 92.7MB in the end (delta: -23.7MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2023-11-19 07:55:00,838 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:00,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 584.76ms. Allocated memory was 115.3MB in the beginning and 151.0MB in the end (delta: 35.7MB). Free memory was 68.7MB in the beginning and 117.1MB in the end (delta: -48.4MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2023-11-19 07:55:00,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.54ms. Allocated memory is still 151.0MB. Free memory was 117.1MB in the beginning and 114.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:00,843 INFO L158 Benchmark]: Boogie Preprocessor took 49.18ms. Allocated memory is still 151.0MB. Free memory was 114.9MB in the beginning and 113.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:00,846 INFO L158 Benchmark]: RCFGBuilder took 468.08ms. Allocated memory is still 151.0MB. Free memory was 113.9MB in the beginning and 99.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 07:55:00,847 INFO L158 Benchmark]: TraceAbstraction took 3754.96ms. Allocated memory is still 151.0MB. Free memory was 99.2MB in the beginning and 92.7MB in the end (delta: 6.4MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2023-11-19 07:55:00,848 INFO L158 Benchmark]: Witness Printer took 5.92ms. Allocated memory is still 151.0MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:00,855 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 584.76ms. Allocated memory was 115.3MB in the beginning and 151.0MB in the end (delta: 35.7MB). Free memory was 68.7MB in the beginning and 117.1MB in the end (delta: -48.4MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.54ms. Allocated memory is still 151.0MB. Free memory was 117.1MB in the beginning and 114.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.18ms. Allocated memory is still 151.0MB. Free memory was 114.9MB in the beginning and 113.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 468.08ms. Allocated memory is still 151.0MB. Free memory was 113.9MB in the beginning and 99.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3754.96ms. Allocated memory is still 151.0MB. Free memory was 99.2MB in the beginning and 92.7MB in the end (delta: 6.4MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Witness Printer took 5.92ms. Allocated memory is still 151.0MB. Free memory is still 92.7MB. 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: 3.0s, 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={6:0}, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(glob1 == 5) [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_2_pos.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: 3.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, 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, 0.1s 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 07:55:00,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/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_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/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_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/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_764580f0-0e36-46ee-9530-33ba0b0fb36f/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 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:03,886 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:03,969 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-19 07:55:03,976 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:03,977 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:04,038 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:04,040 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:04,040 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:04,042 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:55:04,048 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:55:04,049 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:04,049 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:04,050 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:04,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:04,053 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:55:04,053 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:04,054 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:55:04,054 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:04,055 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:55:04,055 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:55:04,056 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:55:04,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:55:04,057 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:55:04,058 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:55:04,058 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:55:04,059 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:55:04,059 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:55:04,060 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:04,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:04,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:04,063 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:55:04,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:04,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:04,065 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:55:04,065 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:55:04,066 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:55:04,066 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:55:04,066 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:55:04,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:55:04,068 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:55:04,068 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:55:04,069 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_764580f0-0e36-46ee-9530-33ba0b0fb36f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d [2023-11-19 07:55:04,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:04,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:04,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:04,665 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:04,665 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:04,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2023-11-19 07:55:07,980 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:08,455 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:08,458 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2023-11-19 07:55:08,490 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/data/f3edfb6f2/45beb832ab044e1c93e2db0f94e53cf8/FLAG69db54f4c [2023-11-19 07:55:08,519 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/data/f3edfb6f2/45beb832ab044e1c93e2db0f94e53cf8 [2023-11-19 07:55:08,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:08,529 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:08,535 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:08,535 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:08,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:08,545 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:08" (1/1) ... [2023-11-19 07:55:08,547 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3199bd51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:08, skipping insertion in model container [2023-11-19 07:55:08,548 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:08" (1/1) ... [2023-11-19 07:55:08,624 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:09,181 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:09,207 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:55:09,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:09,340 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:55:09,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09 WrapperNode [2023-11-19 07:55:09,340 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:09,342 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:09,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:55:09,342 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:55:09,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,389 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,415 INFO L138 Inliner]: procedures = 166, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2023-11-19 07:55:09,415 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:09,416 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:55:09,416 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:55:09,417 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:55:09,427 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,433 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,442 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,448 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,450 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,455 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:55:09,456 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:55:09,456 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:55:09,456 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:55:09,457 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:09,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:09,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:09,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:55:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:55:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:55:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:55:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:55:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 07:55:09,566 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 07:55:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:55:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:55:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:55:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 07:55:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:55:09,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:55:09,568 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 07:55:09,716 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:55:09,718 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:55:10,003 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:55:10,013 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:55:10,014 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:55:10,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:10 BoogieIcfgContainer [2023-11-19 07:55:10,019 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:55:10,021 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:55:10,022 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:55:10,025 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:55:10,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:55:08" (1/3) ... [2023-11-19 07:55:10,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6812f007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:10, skipping insertion in model container [2023-11-19 07:55:10,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (2/3) ... [2023-11-19 07:55:10,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6812f007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:10, skipping insertion in model container [2023-11-19 07:55:10,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:10" (3/3) ... [2023-11-19 07:55:10,029 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_pos.i [2023-11-19 07:55:10,052 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:55:10,053 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 07:55:10,053 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:55:10,125 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:55:10,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 81 transitions, 169 flow [2023-11-19 07:55:10,239 INFO L124 PetriNetUnfolderBase]: 2/80 cut-off events. [2023-11-19 07:55:10,239 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:55:10,244 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 07:55:10,245 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 81 transitions, 169 flow [2023-11-19 07:55:10,250 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 75 transitions, 156 flow [2023-11-19 07:55:10,255 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:55:10,266 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 75 transitions, 156 flow [2023-11-19 07:55:10,270 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 75 transitions, 156 flow [2023-11-19 07:55:10,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 75 transitions, 156 flow [2023-11-19 07:55:10,297 INFO L124 PetriNetUnfolderBase]: 2/75 cut-off events. [2023-11-19 07:55:10,298 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:55:10,299 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 07:55:10,300 INFO L119 LiptonReduction]: Number of co-enabled transitions 644 [2023-11-19 07:55:16,407 INFO L134 LiptonReduction]: Checked pairs total: 1923 [2023-11-19 07:55:16,407 INFO L136 LiptonReduction]: Total number of compositions: 65 [2023-11-19 07:55:16,430 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:55:16,438 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;@21cdf9f5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:55:16,438 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-19 07:55:16,440 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:55:16,440 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:55:16,441 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:55:16,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:16,442 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:55:16,442 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 07:55:16,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:16,449 INFO L85 PathProgramCache]: Analyzing trace with hash 283, now seen corresponding path program 1 times [2023-11-19 07:55:16,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:55:16,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361588601] [2023-11-19 07:55:16,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:16,467 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 07:55:16,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:55:16,475 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/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 07:55:16,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/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 07:55:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:16,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:55:16,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:16,572 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 07:55:16,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:55:16,574 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:55:16,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361588601] [2023-11-19 07:55:16,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361588601] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:16,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:16,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:55:16,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729886181] [2023-11-19 07:55:16,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:16,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:55:16,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:55:16,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:55:16,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:55:16,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 146 [2023-11-19 07:55:16,630 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 07:55:16,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:16,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 146 [2023-11-19 07:55:16,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:16,718 INFO L124 PetriNetUnfolderBase]: 20/88 cut-off events. [2023-11-19 07:55:16,718 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:55:16,720 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 07:55:16,722 INFO L140 encePairwiseOnDemand]: 143/146 looper letters, 12 selfloop transitions, 0 changer transitions 1/20 dead transitions. [2023-11-19 07:55:16,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 72 flow [2023-11-19 07:55:16,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:55:16,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:55:16,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 168 transitions. [2023-11-19 07:55:16,753 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5753424657534246 [2023-11-19 07:55:16,754 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 168 transitions. [2023-11-19 07:55:16,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 168 transitions. [2023-11-19 07:55:16,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:16,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 168 transitions. [2023-11-19 07:55:16,772 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 07:55:16,781 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 07:55:16,782 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 07:55:16,785 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 52 flow. Second operand 2 states and 168 transitions. [2023-11-19 07:55:16,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 72 flow [2023-11-19 07:55:16,791 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 07:55:16,793 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 40 flow [2023-11-19 07:55:16,796 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 07:55:16,801 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -3 predicate places. [2023-11-19 07:55:16,801 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 40 flow [2023-11-19 07:55:16,802 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 07:55:16,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:16,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:55:16,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/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 07:55:17,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/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 07:55:17,006 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 07:55:17,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:17,009 INFO L85 PathProgramCache]: Analyzing trace with hash 8587248, now seen corresponding path program 1 times [2023-11-19 07:55:17,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:55:17,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627940616] [2023-11-19 07:55:17,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:17,015 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 07:55:17,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:55:17,017 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/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 07:55:17,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/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 07:55:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:17,131 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:17,211 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-19 07:55:17,212 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:55:17,215 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-11-19 07:55:17,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-11-19 07:55:17,219 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-11-19 07:55:17,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-11-19 07:55:17,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-11-19 07:55:17,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2023-11-19 07:55:17,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-11-19 07:55:17,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/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 07:55:17,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/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 07:55:17,430 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:55:17,435 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:55:17,435 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:55:17,456 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated [2023-11-19 07:55:17,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:55:17 BasicIcfg [2023-11-19 07:55:17,476 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:55:17,476 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:55:17,477 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:55:17,477 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:55:17,479 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:10" (3/4) ... [2023-11-19 07:55:17,482 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:55:17,485 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:55:17,487 INFO L158 Benchmark]: Toolchain (without parser) took 8956.81ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 76.0MB in the beginning and 89.3MB in the end (delta: -13.3MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2023-11-19 07:55:17,493 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 69.2MB. Free memory is still 45.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:17,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 806.06ms. Allocated memory is still 100.7MB. Free memory was 75.7MB in the beginning and 55.8MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:55:17,500 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.58ms. Allocated memory is still 100.7MB. Free memory was 55.8MB in the beginning and 78.8MB in the end (delta: -23.0MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2023-11-19 07:55:17,503 INFO L158 Benchmark]: Boogie Preprocessor took 39.03ms. Allocated memory is still 100.7MB. Free memory was 78.8MB in the beginning and 77.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:17,505 INFO L158 Benchmark]: RCFGBuilder took 563.02ms. Allocated memory is still 100.7MB. Free memory was 77.5MB in the beginning and 62.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 07:55:17,507 INFO L158 Benchmark]: TraceAbstraction took 7454.46ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 61.4MB in the beginning and 89.3MB in the end (delta: -27.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:17,507 INFO L158 Benchmark]: Witness Printer took 8.52ms. Allocated memory is still 121.6MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:17,511 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 69.2MB. Free memory is still 45.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 806.06ms. Allocated memory is still 100.7MB. Free memory was 75.7MB in the beginning and 55.8MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.58ms. Allocated memory is still 100.7MB. Free memory was 55.8MB in the beginning and 78.8MB in the end (delta: -23.0MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.03ms. Allocated memory is still 100.7MB. Free memory was 78.8MB in the beginning and 77.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 563.02ms. Allocated memory is still 100.7MB. Free memory was 77.5MB in the beginning and 62.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7454.46ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 61.4MB in the beginning and 89.3MB in the end (delta: -27.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.52ms. Allocated memory is still 121.6MB. Free memory is still 89.3MB. 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: 6.1s, 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 == 5) [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_2_pos.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: 7.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.3s, 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 07:55:17,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764580f0-0e36-46ee-9530-33ba0b0fb36f/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