./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 e04fb08f 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_1e8a1cc7-c689-4486-aaa4-891694cace72/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8a1cc7-c689-4486-aaa4-891694cace72/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8a1cc7-c689-4486-aaa4-891694cace72/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8a1cc7-c689-4486-aaa4-891694cace72/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8a1cc7-c689-4486-aaa4-891694cace72/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8a1cc7-c689-4486-aaa4-891694cace72/bin/uautomizer-tPACEb0tL8 --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-e04fb08 [2022-11-16 12:46:05,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:46:05,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:46:05,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:46:05,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:46:05,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:46:05,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:46:05,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:46:05,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:46:05,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:46:05,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:46:05,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:46:05,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:46:05,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:46:05,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:46:05,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:46:05,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:46:05,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:46:05,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:46:05,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:46:05,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:46:05,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:46:05,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:46:05,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:46:05,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:46:05,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:46:05,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:46:05,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:46:05,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:46:05,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:46:05,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:46:05,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:46:05,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:46:05,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:46:05,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:46:05,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:46:05,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:46:05,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:46:05,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:46:05,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:46:05,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:46:05,709 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8a1cc7-c689-4486-aaa4-891694cace72/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-16 12:46:05,742 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:46:05,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:46:05,743 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:46:05,743 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:46:05,744 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:46:05,744 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:46:05,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:46:05,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:46:05,746 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:46:05,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:46:05,747 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:46:05,747 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:46:05,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:46:05,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:46:05,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:46:05,748 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 12:46:05,748 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 12:46:05,749 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 12:46:05,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:46:05,749 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:46:05,749 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:46:05,750 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:46:05,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:46:05,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:46:05,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:46:05,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:46:05,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:46:05,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:46:05,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:46:05,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:46:05,753 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_1e8a1cc7-c689-4486-aaa4-891694cace72/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8a1cc7-c689-4486-aaa4-891694cace72/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 115e066856baca443b44a0f6b5ce54f74ba2b2820e5612bf4393c0e893767d55 [2022-11-16 12:46:06,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:46:06,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:46:06,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:46:06,043 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:46:06,043 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:46:06,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8a1cc7-c689-4486-aaa4-891694cace72/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2022-11-16 12:46:06,118 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8a1cc7-c689-4486-aaa4-891694cace72/bin/uautomizer-tPACEb0tL8/data/d155470a1/5729f47e8bb2408ca1325a5bd64432bb/FLAG474166d66 [2022-11-16 12:46:06,674 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:46:06,675 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8a1cc7-c689-4486-aaa4-891694cace72/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2022-11-16 12:46:06,697 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8a1cc7-c689-4486-aaa4-891694cace72/bin/uautomizer-tPACEb0tL8/data/d155470a1/5729f47e8bb2408ca1325a5bd64432bb/FLAG474166d66 [2022-11-16 12:46:06,926 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8a1cc7-c689-4486-aaa4-891694cace72/bin/uautomizer-tPACEb0tL8/data/d155470a1/5729f47e8bb2408ca1325a5bd64432bb [2022-11-16 12:46:06,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:46:06,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:46:06,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:46:06,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:46:06,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:46:06,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:46:06" (1/1) ... [2022-11-16 12:46:06,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc625a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:06, skipping insertion in model container [2022-11-16 12:46:06,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:46:06" (1/1) ... [2022-11-16 12:46:06,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:46:07,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:46:07,899 WARN L229 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_1e8a1cc7-c689-4486-aaa4-891694cace72/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i[63494,63507] [2022-11-16 12:46:07,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:46:07,960 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:46:08,036 WARN L229 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_1e8a1cc7-c689-4486-aaa4-891694cace72/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i[63494,63507] [2022-11-16 12:46:08,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:46:08,144 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:46:08,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:08 WrapperNode [2022-11-16 12:46:08,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:46:08,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:46:08,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:46:08,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:46:08,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:08" (1/1) ... [2022-11-16 12:46:08,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:08" (1/1) ... [2022-11-16 12:46:08,352 INFO L138 Inliner]: procedures = 397, calls = 214, calls flagged for inlining = 52, calls inlined = 211, statements flattened = 3713 [2022-11-16 12:46:08,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:46:08,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:46:08,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:46:08,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:46:08,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:08" (1/1) ... [2022-11-16 12:46:08,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:08" (1/1) ... [2022-11-16 12:46:08,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:08" (1/1) ... [2022-11-16 12:46:08,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:08" (1/1) ... [2022-11-16 12:46:08,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:08" (1/1) ... [2022-11-16 12:46:08,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:08" (1/1) ... [2022-11-16 12:46:08,507 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:08" (1/1) ... [2022-11-16 12:46:08,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:08" (1/1) ... [2022-11-16 12:46:08,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:46:08,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:46:08,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:46:08,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:46:08,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:08" (1/1) ... [2022-11-16 12:46:08,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:46:08,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8a1cc7-c689-4486-aaa4-891694cace72/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:46:08,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8a1cc7-c689-4486-aaa4-891694cace72/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:46:08,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8a1cc7-c689-4486-aaa4-891694cace72/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:46:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:46:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:46:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:46:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:46:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:46:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:46:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2022-11-16 12:46:08,650 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2022-11-16 12:46:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2022-11-16 12:46:08,650 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2022-11-16 12:46:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2022-11-16 12:46:08,651 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2022-11-16 12:46:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:46:08,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:46:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:46:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:46:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:46:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:46:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2022-11-16 12:46:08,652 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2022-11-16 12:46:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2022-11-16 12:46:08,652 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2022-11-16 12:46:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2022-11-16 12:46:08,653 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2022-11-16 12:46:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2022-11-16 12:46:08,653 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2022-11-16 12:46:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:46:08,656 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:46:09,181 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:46:09,183 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:46:14,168 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:46:20,405 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:46:20,405 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:46:20,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:46:20 BoogieIcfgContainer [2022-11-16 12:46:20,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:46:20,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:46:20,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:46:20,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:46:20,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:46:06" (1/3) ... [2022-11-16 12:46:20,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2a337d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:46:20, skipping insertion in model container [2022-11-16 12:46:20,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:08" (2/3) ... [2022-11-16 12:46:20,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2a337d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:46:20, skipping insertion in model container [2022-11-16 12:46:20,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:46:20" (3/3) ... [2022-11-16 12:46:20,429 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_backoff_stack.i [2022-11-16 12:46:20,450 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:46:20,451 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1344 error locations. [2022-11-16 12:46:20,451 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:46:22,804 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:46:22,899 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 12:46:22,916 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 3786 places, 3911 transitions, 7857 flow [2022-11-16 12:46:22,924 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 3786 places, 3911 transitions, 7857 flow [2022-11-16 12:46:22,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 3786 places, 3911 transitions, 7857 flow [2022-11-16 12:46:32,469 INFO L130 PetriNetUnfolder]: 147/3904 cut-off events. [2022-11-16 12:46:32,470 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:46:33,099 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. [2022-11-16 12:46:36,375 INFO L119 LiptonReduction]: Number of co-enabled transitions 12477512 [2022-11-16 12:48:11,329 WARN L233 SmtUtils]: Spent 9.73s 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) [2022-11-16 12:48:28,245 WARN L233 SmtUtils]: Spent 12.64s 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) [2022-11-16 12:48:33,634 WARN L233 SmtUtils]: Spent 5.39s 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) [2022-11-16 12:50:54,924 WARN L233 SmtUtils]: Spent 2.35m 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) [2022-11-16 12:52:00,799 WARN L233 SmtUtils]: Spent 1.10m 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) [2022-11-16 12:54:15,576 WARN L233 SmtUtils]: Spent 2.25m 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) [2022-11-16 12:55:20,864 WARN L233 SmtUtils]: Spent 1.09m 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) [2022-11-16 12:56:30,019 WARN L233 SmtUtils]: Spent 10.11s 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) [2022-11-16 12:56:48,326 WARN L233 SmtUtils]: Spent 13.84s 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) [2022-11-16 12:56:54,068 WARN L233 SmtUtils]: Spent 5.74s 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) [2022-11-16 12:58:33,483 WARN L233 SmtUtils]: Spent 1.66m 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) [2022-11-16 12:59:18,793 WARN L233 SmtUtils]: Spent 45.30s 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) [2022-11-16 13:01:14,849 WARN L233 SmtUtils]: Spent 1.93m 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)