./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --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 115e066856baca443b44a0f6b5ce54f74ba2b2820e5612bf4393c0e893767d55 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:26:01,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:26:01,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:26:01,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:26:01,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:26:01,493 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:26:01,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:26:01,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:26:01,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:26:01,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:26:01,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:26:01,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:26:01,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:26:01,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:26:01,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:26:01,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:26:01,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:26:01,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:26:01,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:26:01,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:26:01,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:26:01,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:26:01,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:26:01,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:26:01,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:26:01,535 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:26:01,535 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:26:01,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:26:01,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:26:01,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:26:01,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:26:01,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:26:01,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:26:01,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:26:01,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:26:01,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:26:01,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:26:01,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:26:01,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:26:01,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:26:01,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:26:01,551 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 20:26:01,585 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:26:01,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:26:01,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:26:01,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:26:01,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:26:01,588 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:26:01,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:26:01,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:26:01,589 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:26:01,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:26:01,590 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:26:01,591 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:26:01,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:26:01,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:26:01,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:26:01,591 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 20:26:01,592 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 20:26:01,592 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 20:26:01,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:26:01,592 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:26:01,592 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:26:01,593 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:26:01,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:26:01,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:26:01,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:26:01,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:26:01,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:26:01,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:26:01,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:26:01,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:26:01,595 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 115e066856baca443b44a0f6b5ce54f74ba2b2820e5612bf4393c0e893767d55 [2022-11-18 20:26:01,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:26:01,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:26:01,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:26:01,949 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:26:01,950 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:26:01,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2022-11-18 20:26:02,028 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/bin/uautomizer-TMbwUNV5ro/data/3eaa5e32e/c1abafd4c73a456a8f5ebeb18ee49e42/FLAGadb1afbac [2022-11-18 20:26:02,586 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:26:02,587 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2022-11-18 20:26:02,605 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/bin/uautomizer-TMbwUNV5ro/data/3eaa5e32e/c1abafd4c73a456a8f5ebeb18ee49e42/FLAGadb1afbac [2022-11-18 20:26:02,844 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/bin/uautomizer-TMbwUNV5ro/data/3eaa5e32e/c1abafd4c73a456a8f5ebeb18ee49e42 [2022-11-18 20:26:02,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:26:02,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:26:02,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:26:02,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:26:02,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:26:02,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:26:02" (1/1) ... [2022-11-18 20:26:02,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57fff369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:02, skipping insertion in model container [2022-11-18 20:26:02,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:26:02" (1/1) ... [2022-11-18 20:26:02,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:26:02,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:26:03,596 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i[63494,63507] [2022-11-18 20:26:03,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:26:03,632 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:26:03,688 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i[63494,63507] [2022-11-18 20:26:03,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:26:03,788 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:26:03,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:03 WrapperNode [2022-11-18 20:26:03,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:26:03,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:26:03,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:26:03,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:26:03,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:03" (1/1) ... [2022-11-18 20:26:03,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:03" (1/1) ... [2022-11-18 20:26:03,963 INFO L138 Inliner]: procedures = 397, calls = 214, calls flagged for inlining = 52, calls inlined = 211, statements flattened = 3713 [2022-11-18 20:26:03,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:26:03,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:26:03,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:26:03,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:26:03,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:03" (1/1) ... [2022-11-18 20:26:03,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:03" (1/1) ... [2022-11-18 20:26:04,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:03" (1/1) ... [2022-11-18 20:26:04,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:03" (1/1) ... [2022-11-18 20:26:04,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:03" (1/1) ... [2022-11-18 20:26:04,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:03" (1/1) ... [2022-11-18 20:26:04,153 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:03" (1/1) ... [2022-11-18 20:26:04,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:03" (1/1) ... [2022-11-18 20:26:04,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:26:04,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:26:04,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:26:04,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:26:04,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:03" (1/1) ... [2022-11-18 20:26:04,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:26:04,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:26:04,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:26:04,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67773cf6-9fcb-4644-9f72-28530edd9f0e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:26:04,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:26:04,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:26:04,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:26:04,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:26:04,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:26:04,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:26:04,284 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2022-11-18 20:26:04,284 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2022-11-18 20:26:04,285 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2022-11-18 20:26:04,285 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2022-11-18 20:26:04,285 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2022-11-18 20:26:04,285 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2022-11-18 20:26:04,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:26:04,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:26:04,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:26:04,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:26:04,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:26:04,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:26:04,287 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2022-11-18 20:26:04,287 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2022-11-18 20:26:04,287 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2022-11-18 20:26:04,287 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2022-11-18 20:26:04,287 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2022-11-18 20:26:04,288 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2022-11-18 20:26:04,288 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2022-11-18 20:26:04,288 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2022-11-18 20:26:04,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:26:04,291 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:26:04,791 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:26:04,793 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:26:10,310 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:26:16,280 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:26:16,280 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:26:16,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:26:16 BoogieIcfgContainer [2022-11-18 20:26:16,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:26:16,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:26:16,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:26:16,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:26:16,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:26:02" (1/3) ... [2022-11-18 20:26:16,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae8bddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:26:16, skipping insertion in model container [2022-11-18 20:26:16,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:03" (2/3) ... [2022-11-18 20:26:16,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae8bddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:26:16, skipping insertion in model container [2022-11-18 20:26:16,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:26:16" (3/3) ... [2022-11-18 20:26:16,305 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_backoff_stack.i [2022-11-18 20:26:16,325 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:26:16,326 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1344 error locations. [2022-11-18 20:26:16,326 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:26:18,900 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:26:18,978 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 20:26:18,995 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 3786 places, 3911 transitions, 7857 flow [2022-11-18 20:26:18,998 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 3786 places, 3911 transitions, 7857 flow [2022-11-18 20:26:19,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 3786 places, 3911 transitions, 7857 flow [2022-11-18 20:26:30,693 INFO L130 PetriNetUnfolder]: 147/3904 cut-off events. [2022-11-18 20:26:30,693 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:26:31,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3926 conditions, 3904 events. 147/3904 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 31761 event pairs, 0 based on Foata normal form. 0/2413 useless extension candidates. Maximal degree in co-relation 3844. Up to 6 conditions per place. [2022-11-18 20:26:34,605 INFO L119 LiptonReduction]: Number of co-enabled transitions 12477512 [2022-11-18 20:28:14,815 WARN L233 SmtUtils]: Spent 10.18s on a formula simplification. DAG size of input: 274 DAG size of output: 239 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:28:32,542 WARN L233 SmtUtils]: Spent 13.24s on a formula simplification. DAG size of input: 292 DAG size of output: 254 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:28:38,219 WARN L233 SmtUtils]: Spent 5.67s on a formula simplification that was a NOOP. DAG size: 249 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:31:09,282 WARN L233 SmtUtils]: Spent 2.52m on a formula simplification. DAG size of input: 469 DAG size of output: 409 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:32:28,314 WARN L233 SmtUtils]: Spent 1.32m on a formula simplification that was a NOOP. DAG size: 402 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:34:47,432 WARN L233 SmtUtils]: Spent 2.32m on a formula simplification. DAG size of input: 519 DAG size of output: 457 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:35:53,914 WARN L233 SmtUtils]: Spent 1.11m on a formula simplification that was a NOOP. DAG size: 449 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:37:08,268 WARN L233 SmtUtils]: Spent 12.34s on a formula simplification. DAG size of input: 274 DAG size of output: 239 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:37:14,133 WARN L233 SmtUtils]: Spent 5.86s on a formula simplification that was a NOOP. DAG size: 236 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:37:27,288 WARN L233 SmtUtils]: Spent 13.15s on a formula simplification. DAG size of input: 292 DAG size of output: 254 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:37:33,184 WARN L233 SmtUtils]: Spent 5.89s on a formula simplification that was a NOOP. DAG size: 249 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:38:50,992 WARN L233 SmtUtils]: Spent 1.30m on a formula simplification. DAG size of input: 441 DAG size of output: 397 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:39:28,166 WARN L233 SmtUtils]: Spent 37.17s on a formula simplification that was a NOOP. DAG size: 392 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:41:09,575 WARN L233 SmtUtils]: Spent 1.69m on a formula simplification. DAG size of input: 480 DAG size of output: 432 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)