./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix037.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix037.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB --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 be02b321ccd6bac38d207cd4c595c173c1a2ce3b705272ff0087ad749834a1ef --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:20:47,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:20:47,830 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 03:20:47,839 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:20:47,841 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:20:47,878 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:20:47,879 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:20:47,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:20:47,879 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:20:47,879 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:20:47,879 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:20:47,880 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:20:47,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:20:47,880 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:20:47,880 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:20:47,880 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:20:47,880 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:20:47,880 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:20:47,881 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:20:47,881 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:20:47,881 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 03:20:47,881 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 03:20:47,881 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 03:20:47,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:20:47,881 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:20:47,881 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:20:47,881 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:20:47,881 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:20:47,882 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:20:47,882 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:20:47,882 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:20:47,882 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:20:47,882 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:20:47,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:20:47,882 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:20:47,882 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:20:47,882 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:20:47,882 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:20:47,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:20:47,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:20:47,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:20:47,883 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:20:47,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:20:47,883 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:20:47,883 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:20:47,883 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:20:47,883 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:20:47,883 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB 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 -> be02b321ccd6bac38d207cd4c595c173c1a2ce3b705272ff0087ad749834a1ef [2024-11-28 03:20:48,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:20:48,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:20:48,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:20:48,191 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:20:48,191 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:20:48,192 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/mix037.opt.i [2024-11-28 03:20:51,331 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/data/41084ab61/3e3346a6518342e08a5a20b707d19e0d/FLAG8ea537cb4 [2024-11-28 03:20:51,703 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:20:51,707 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/sv-benchmarks/c/pthread-wmm/mix037.opt.i [2024-11-28 03:20:51,730 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/data/41084ab61/3e3346a6518342e08a5a20b707d19e0d/FLAG8ea537cb4 [2024-11-28 03:20:51,907 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/data/41084ab61/3e3346a6518342e08a5a20b707d19e0d [2024-11-28 03:20:51,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:20:51,912 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:20:51,913 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:20:51,914 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:20:51,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:20:51,919 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:51" (1/1) ... [2024-11-28 03:20:51,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43b89eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:51, skipping insertion in model container [2024-11-28 03:20:51,922 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:51" (1/1) ... [2024-11-28 03:20:51,973 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:20:52,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:20:52,334 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:20:52,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:20:52,435 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:20:52,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:52 WrapperNode [2024-11-28 03:20:52,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:20:52,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:20:52,437 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:20:52,437 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:20:52,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:52" (1/1) ... [2024-11-28 03:20:52,461 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:52" (1/1) ... [2024-11-28 03:20:52,483 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 139 [2024-11-28 03:20:52,483 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:20:52,484 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:20:52,484 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:20:52,484 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:20:52,494 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:52" (1/1) ... [2024-11-28 03:20:52,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:52" (1/1) ... [2024-11-28 03:20:52,502 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:52" (1/1) ... [2024-11-28 03:20:52,533 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:20:52,533 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:52" (1/1) ... [2024-11-28 03:20:52,534 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:52" (1/1) ... [2024-11-28 03:20:52,548 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:52" (1/1) ... [2024-11-28 03:20:52,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:52" (1/1) ... [2024-11-28 03:20:52,551 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:52" (1/1) ... [2024-11-28 03:20:52,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:52" (1/1) ... [2024-11-28 03:20:52,562 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:52" (1/1) ... [2024-11-28 03:20:52,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:20:52,568 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:20:52,568 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:20:52,568 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:20:52,569 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:52" (1/1) ... [2024-11-28 03:20:52,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:20:52,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:52,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:20:52,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:20:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 03:20:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:20:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 03:20:52,642 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 03:20:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 03:20:52,642 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 03:20:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-28 03:20:52,642 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-28 03:20:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-28 03:20:52,643 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-28 03:20:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:20:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 03:20:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:20:52,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:20:52,644 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:20:52,842 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:20:52,844 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:20:53,314 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:20:53,315 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:20:53,647 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:20:53,649 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:20:53,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:53 BoogieIcfgContainer [2024-11-28 03:20:53,650 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:20:53,652 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:20:53,654 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:20:53,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:20:53,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:20:51" (1/3) ... [2024-11-28 03:20:53,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@602cad17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:53, skipping insertion in model container [2024-11-28 03:20:53,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:52" (2/3) ... [2024-11-28 03:20:53,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@602cad17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:53, skipping insertion in model container [2024-11-28 03:20:53,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:53" (3/3) ... [2024-11-28 03:20:53,664 INFO L128 eAbstractionObserver]: Analyzing ICFG mix037.opt.i [2024-11-28 03:20:53,680 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:20:53,682 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix037.opt.i that has 5 procedures, 54 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-11-28 03:20:53,683 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:20:53,768 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:20:53,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-28 03:20:53,875 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-28 03:20:53,877 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:20:53,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 106 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-11-28 03:20:53,881 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-28 03:20:53,886 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-28 03:20:53,896 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:20:53,917 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@272c2d40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:20:53,917 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-28 03:20:53,935 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:20:53,936 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-28 03:20:53,936 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:20:53,936 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:53,936 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:53,939 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:20:53,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:53,948 INFO L85 PathProgramCache]: Analyzing trace with hash -2059415119, now seen corresponding path program 1 times [2024-11-28 03:20:53,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:53,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055532959] [2024-11-28 03:20:53,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:53,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:54,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:54,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:54,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055532959] [2024-11-28 03:20:54,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055532959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:54,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:54,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 03:20:54,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947629279] [2024-11-28 03:20:54,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:54,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:20:54,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:54,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:20:54,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:20:54,801 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 55 [2024-11-28 03:20:54,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-11-28 03:20:54,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:54,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 55 [2024-11-28 03:20:54,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:55,489 INFO L124 PetriNetUnfolderBase]: 931/1851 cut-off events. [2024-11-28 03:20:55,490 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:20:55,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3247 conditions, 1851 events. 931/1851 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 14072 event pairs, 199 based on Foata normal form. 96/1918 useless extension candidates. Maximal degree in co-relation 3235. Up to 1021 conditions per place. [2024-11-28 03:20:55,517 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 29 selfloop transitions, 2 changer transitions 2/58 dead transitions. [2024-11-28 03:20:55,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 58 transitions, 194 flow [2024-11-28 03:20:55,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:20:55,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:20:55,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2024-11-28 03:20:55,537 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7575757575757576 [2024-11-28 03:20:55,539 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 125 transitions. [2024-11-28 03:20:55,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 58 transitions, 194 flow [2024-11-28 03:20:55,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 58 transitions, 190 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 03:20:55,552 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-28 03:20:55,554 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-11-28 03:20:55,560 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-28 03:20:55,560 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-28 03:20:55,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-11-28 03:20:55,560 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:55,560 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:55,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:20:55,561 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:20:55,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:55,562 INFO L85 PathProgramCache]: Analyzing trace with hash -279928531, now seen corresponding path program 1 times [2024-11-28 03:20:55,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:55,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730466336] [2024-11-28 03:20:55,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:55,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:55,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:55,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:55,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730466336] [2024-11-28 03:20:55,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730466336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:55,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:55,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 03:20:55,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832839801] [2024-11-28 03:20:55,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:55,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:20:55,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:55,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:20:55,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:20:55,686 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 55 [2024-11-28 03:20:55,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-28 03:20:55,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:55,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 55 [2024-11-28 03:20:55,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:56,051 INFO L124 PetriNetUnfolderBase]: 815/1519 cut-off events. [2024-11-28 03:20:56,051 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-11-28 03:20:56,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2833 conditions, 1519 events. 815/1519 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 11021 event pairs, 815 based on Foata normal form. 48/1502 useless extension candidates. Maximal degree in co-relation 2823. Up to 1188 conditions per place. [2024-11-28 03:20:56,062 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 19 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-28 03:20:56,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 144 flow [2024-11-28 03:20:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:20:56,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:20:56,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-11-28 03:20:56,065 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6424242424242425 [2024-11-28 03:20:56,065 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 106 transitions. [2024-11-28 03:20:56,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 144 flow [2024-11-28 03:20:56,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 140 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:20:56,068 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-28 03:20:56,068 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-11-28 03:20:56,068 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-28 03:20:56,068 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-28 03:20:56,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-28 03:20:56,069 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:56,069 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:56,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:20:56,069 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:20:56,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:56,070 INFO L85 PathProgramCache]: Analyzing trace with hash -279927368, now seen corresponding path program 1 times [2024-11-28 03:20:56,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:56,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781358581] [2024-11-28 03:20:56,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:56,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:56,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:56,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:56,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781358581] [2024-11-28 03:20:56,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781358581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:56,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:56,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:20:56,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959083695] [2024-11-28 03:20:56,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:56,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:20:56,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:56,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:20:56,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:20:56,514 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-11-28 03:20:56,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 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) [2024-11-28 03:20:56,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:56,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-11-28 03:20:56,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:57,215 INFO L124 PetriNetUnfolderBase]: 1327/2247 cut-off events. [2024-11-28 03:20:57,215 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:20:57,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4217 conditions, 2247 events. 1327/2247 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 16231 event pairs, 307 based on Foata normal form. 0/2170 useless extension candidates. Maximal degree in co-relation 4211. Up to 853 conditions per place. [2024-11-28 03:20:57,230 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 27 selfloop transitions, 2 changer transitions 36/86 dead transitions. [2024-11-28 03:20:57,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 86 transitions, 312 flow [2024-11-28 03:20:57,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:20:57,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 03:20:57,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 275 transitions. [2024-11-28 03:20:57,232 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-28 03:20:57,232 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 8 states and 275 transitions. [2024-11-28 03:20:57,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 86 transitions, 312 flow [2024-11-28 03:20:57,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 86 transitions, 311 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:20:57,235 INFO L231 Difference]: Finished difference. Result has 66 places, 43 transitions, 111 flow [2024-11-28 03:20:57,235 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=111, PETRI_PLACES=66, PETRI_TRANSITIONS=43} [2024-11-28 03:20:57,236 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 4 predicate places. [2024-11-28 03:20:57,236 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 43 transitions, 111 flow [2024-11-28 03:20:57,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 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) [2024-11-28 03:20:57,237 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:57,237 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:57,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:20:57,237 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:20:57,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:57,238 INFO L85 PathProgramCache]: Analyzing trace with hash -917487499, now seen corresponding path program 1 times [2024-11-28 03:20:57,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:57,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825342892] [2024-11-28 03:20:57,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:57,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:57,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:57,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:57,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825342892] [2024-11-28 03:20:57,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825342892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:57,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:57,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:20:57,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931375896] [2024-11-28 03:20:57,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:57,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:20:57,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:57,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:20:57,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:20:57,650 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-28 03:20:57,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 43 transitions, 111 flow. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-11-28 03:20:57,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:57,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-28 03:20:57,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:58,596 INFO L124 PetriNetUnfolderBase]: 2135/3719 cut-off events. [2024-11-28 03:20:58,596 INFO L125 PetriNetUnfolderBase]: For 612/612 co-relation queries the response was YES. [2024-11-28 03:20:58,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7370 conditions, 3719 events. 2135/3719 cut-off events. For 612/612 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 25449 event pairs, 1096 based on Foata normal form. 81/3728 useless extension candidates. Maximal degree in co-relation 7358. Up to 2383 conditions per place. [2024-11-28 03:20:58,631 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 36 selfloop transitions, 3 changer transitions 31/90 dead transitions. [2024-11-28 03:20:58,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 90 transitions, 361 flow [2024-11-28 03:20:58,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:20:58,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:20:58,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 247 transitions. [2024-11-28 03:20:58,634 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6415584415584416 [2024-11-28 03:20:58,634 INFO L175 Difference]: Start difference. First operand has 66 places, 43 transitions, 111 flow. Second operand 7 states and 247 transitions. [2024-11-28 03:20:58,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 90 transitions, 361 flow [2024-11-28 03:20:58,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 90 transitions, 341 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-28 03:20:58,664 INFO L231 Difference]: Finished difference. Result has 65 places, 45 transitions, 134 flow [2024-11-28 03:20:58,664 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=134, PETRI_PLACES=65, PETRI_TRANSITIONS=45} [2024-11-28 03:20:58,666 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 3 predicate places. [2024-11-28 03:20:58,666 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 45 transitions, 134 flow [2024-11-28 03:20:58,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-11-28 03:20:58,667 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:58,668 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:58,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:20:58,668 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:20:58,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:58,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1686555084, now seen corresponding path program 1 times [2024-11-28 03:20:58,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:58,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185351088] [2024-11-28 03:20:58,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:58,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:58,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:58,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:58,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185351088] [2024-11-28 03:20:58,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185351088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:58,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:58,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:20:58,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613961408] [2024-11-28 03:20:58,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:58,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:20:58,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:58,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:20:58,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:20:58,962 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-28 03:20:58,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 45 transitions, 134 flow. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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) [2024-11-28 03:20:58,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:58,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-28 03:20:58,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:00,130 INFO L124 PetriNetUnfolderBase]: 4874/7543 cut-off events. [2024-11-28 03:21:00,131 INFO L125 PetriNetUnfolderBase]: For 1938/1938 co-relation queries the response was YES. [2024-11-28 03:21:00,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16328 conditions, 7543 events. 4874/7543 cut-off events. For 1938/1938 co-relation queries the response was YES. Maximal size of possible extension queue 473. Compared 52097 event pairs, 738 based on Foata normal form. 220/7532 useless extension candidates. Maximal degree in co-relation 16315. Up to 4068 conditions per place. [2024-11-28 03:21:00,283 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 45 selfloop transitions, 6 changer transitions 0/71 dead transitions. [2024-11-28 03:21:00,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 71 transitions, 294 flow [2024-11-28 03:21:00,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:21:00,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:21:00,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 149 transitions. [2024-11-28 03:21:00,284 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6772727272727272 [2024-11-28 03:21:00,284 INFO L175 Difference]: Start difference. First operand has 65 places, 45 transitions, 134 flow. Second operand 4 states and 149 transitions. [2024-11-28 03:21:00,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 71 transitions, 294 flow [2024-11-28 03:21:00,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 71 transitions, 287 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-28 03:21:00,306 INFO L231 Difference]: Finished difference. Result has 63 places, 50 transitions, 173 flow [2024-11-28 03:21:00,306 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=173, PETRI_PLACES=63, PETRI_TRANSITIONS=50} [2024-11-28 03:21:00,310 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 1 predicate places. [2024-11-28 03:21:00,310 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 50 transitions, 173 flow [2024-11-28 03:21:00,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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) [2024-11-28 03:21:00,310 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:00,310 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:00,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:21:00,311 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:00,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:00,311 INFO L85 PathProgramCache]: Analyzing trace with hash -2012598194, now seen corresponding path program 1 times [2024-11-28 03:21:00,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:00,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163251384] [2024-11-28 03:21:00,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:00,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:00,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:00,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:00,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163251384] [2024-11-28 03:21:00,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163251384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:00,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:00,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:21:00,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049155912] [2024-11-28 03:21:00,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:00,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:21:00,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:00,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:21:00,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:21:00,640 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-28 03:21:00,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 50 transitions, 173 flow. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-11-28 03:21:00,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:00,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-28 03:21:00,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:02,570 INFO L124 PetriNetUnfolderBase]: 6382/10763 cut-off events. [2024-11-28 03:21:02,570 INFO L125 PetriNetUnfolderBase]: For 4423/4573 co-relation queries the response was YES. [2024-11-28 03:21:02,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25098 conditions, 10763 events. 6382/10763 cut-off events. For 4423/4573 co-relation queries the response was YES. Maximal size of possible extension queue 660. Compared 87043 event pairs, 2744 based on Foata normal form. 229/9861 useless extension candidates. Maximal degree in co-relation 25084. Up to 3879 conditions per place. [2024-11-28 03:21:02,771 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 62 selfloop transitions, 8 changer transitions 2/97 dead transitions. [2024-11-28 03:21:02,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 97 transitions, 445 flow [2024-11-28 03:21:02,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:21:02,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:21:02,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 248 transitions. [2024-11-28 03:21:02,773 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6441558441558441 [2024-11-28 03:21:02,773 INFO L175 Difference]: Start difference. First operand has 63 places, 50 transitions, 173 flow. Second operand 7 states and 248 transitions. [2024-11-28 03:21:02,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 97 transitions, 445 flow [2024-11-28 03:21:02,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 97 transitions, 437 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-28 03:21:02,777 INFO L231 Difference]: Finished difference. Result has 73 places, 55 transitions, 234 flow [2024-11-28 03:21:02,778 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=234, PETRI_PLACES=73, PETRI_TRANSITIONS=55} [2024-11-28 03:21:02,778 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 11 predicate places. [2024-11-28 03:21:02,779 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 55 transitions, 234 flow [2024-11-28 03:21:02,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-11-28 03:21:02,779 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:02,779 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:02,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:21:02,779 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:02,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:02,780 INFO L85 PathProgramCache]: Analyzing trace with hash 502362422, now seen corresponding path program 1 times [2024-11-28 03:21:02,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:02,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225121768] [2024-11-28 03:21:02,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:02,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:03,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:03,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:03,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225121768] [2024-11-28 03:21:03,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225121768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:03,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:03,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:21:03,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140058386] [2024-11-28 03:21:03,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:03,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:21:03,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:03,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:21:03,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:21:03,066 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-28 03:21:03,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 55 transitions, 234 flow. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 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) [2024-11-28 03:21:03,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:03,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-28 03:21:03,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:04,828 INFO L124 PetriNetUnfolderBase]: 7589/11708 cut-off events. [2024-11-28 03:21:04,828 INFO L125 PetriNetUnfolderBase]: For 8180/8392 co-relation queries the response was YES. [2024-11-28 03:21:04,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30230 conditions, 11708 events. 7589/11708 cut-off events. For 8180/8392 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 85319 event pairs, 647 based on Foata normal form. 338/11828 useless extension candidates. Maximal degree in co-relation 30211. Up to 5741 conditions per place. [2024-11-28 03:21:04,915 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 56 selfloop transitions, 10 changer transitions 5/93 dead transitions. [2024-11-28 03:21:04,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 93 transitions, 478 flow [2024-11-28 03:21:04,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:21:04,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:21:04,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 190 transitions. [2024-11-28 03:21:04,916 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6909090909090909 [2024-11-28 03:21:04,917 INFO L175 Difference]: Start difference. First operand has 73 places, 55 transitions, 234 flow. Second operand 5 states and 190 transitions. [2024-11-28 03:21:04,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 93 transitions, 478 flow [2024-11-28 03:21:05,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 93 transitions, 459 flow, removed 8 selfloop flow, removed 1 redundant places. [2024-11-28 03:21:05,024 INFO L231 Difference]: Finished difference. Result has 78 places, 55 transitions, 254 flow [2024-11-28 03:21:05,024 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=254, PETRI_PLACES=78, PETRI_TRANSITIONS=55} [2024-11-28 03:21:05,025 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 16 predicate places. [2024-11-28 03:21:05,025 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 55 transitions, 254 flow [2024-11-28 03:21:05,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 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) [2024-11-28 03:21:05,025 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:05,025 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:05,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:21:05,026 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:05,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:05,028 INFO L85 PathProgramCache]: Analyzing trace with hash 521945827, now seen corresponding path program 1 times [2024-11-28 03:21:05,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:05,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382606979] [2024-11-28 03:21:05,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:05,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:05,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:05,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:05,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382606979] [2024-11-28 03:21:05,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382606979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:05,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:05,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:21:05,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671581353] [2024-11-28 03:21:05,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:05,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:21:05,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:05,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:21:05,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:21:05,499 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-28 03:21:05,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 55 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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) [2024-11-28 03:21:05,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:05,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-28 03:21:05,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:06,610 INFO L124 PetriNetUnfolderBase]: 4153/6342 cut-off events. [2024-11-28 03:21:06,611 INFO L125 PetriNetUnfolderBase]: For 7641/7749 co-relation queries the response was YES. [2024-11-28 03:21:06,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18355 conditions, 6342 events. 4153/6342 cut-off events. For 7641/7749 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 39720 event pairs, 173 based on Foata normal form. 284/6502 useless extension candidates. Maximal degree in co-relation 18333. Up to 2169 conditions per place. [2024-11-28 03:21:06,641 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 66 selfloop transitions, 14 changer transitions 1/103 dead transitions. [2024-11-28 03:21:06,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 103 transitions, 561 flow [2024-11-28 03:21:06,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:21:06,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:21:06,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 227 transitions. [2024-11-28 03:21:06,644 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6878787878787879 [2024-11-28 03:21:06,644 INFO L175 Difference]: Start difference. First operand has 78 places, 55 transitions, 254 flow. Second operand 6 states and 227 transitions. [2024-11-28 03:21:06,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 103 transitions, 561 flow [2024-11-28 03:21:06,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 103 transitions, 517 flow, removed 9 selfloop flow, removed 7 redundant places. [2024-11-28 03:21:06,675 INFO L231 Difference]: Finished difference. Result has 76 places, 59 transitions, 291 flow [2024-11-28 03:21:06,675 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=291, PETRI_PLACES=76, PETRI_TRANSITIONS=59} [2024-11-28 03:21:06,679 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 14 predicate places. [2024-11-28 03:21:06,679 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 59 transitions, 291 flow [2024-11-28 03:21:06,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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) [2024-11-28 03:21:06,679 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:06,680 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:06,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:21:06,680 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:06,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:06,680 INFO L85 PathProgramCache]: Analyzing trace with hash -527458578, now seen corresponding path program 1 times [2024-11-28 03:21:06,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:06,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146738227] [2024-11-28 03:21:06,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:06,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:07,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:07,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:07,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146738227] [2024-11-28 03:21:07,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146738227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:07,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:07,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:21:07,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053893438] [2024-11-28 03:21:07,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:07,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:21:07,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:07,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:21:07,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:21:07,049 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-28 03:21:07,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 59 transitions, 291 flow. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2024-11-28 03:21:07,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:07,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-28 03:21:07,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:08,249 INFO L124 PetriNetUnfolderBase]: 4686/8127 cut-off events. [2024-11-28 03:21:08,249 INFO L125 PetriNetUnfolderBase]: For 7903/8418 co-relation queries the response was YES. [2024-11-28 03:21:08,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21578 conditions, 8127 events. 4686/8127 cut-off events. For 7903/8418 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 59788 event pairs, 1563 based on Foata normal form. 171/7808 useless extension candidates. Maximal degree in co-relation 21558. Up to 3581 conditions per place. [2024-11-28 03:21:08,279 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 49 selfloop transitions, 2 changer transitions 19/104 dead transitions. [2024-11-28 03:21:08,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 104 transitions, 581 flow [2024-11-28 03:21:08,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:21:08,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:21:08,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 218 transitions. [2024-11-28 03:21:08,281 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6606060606060606 [2024-11-28 03:21:08,282 INFO L175 Difference]: Start difference. First operand has 76 places, 59 transitions, 291 flow. Second operand 6 states and 218 transitions. [2024-11-28 03:21:08,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 104 transitions, 581 flow [2024-11-28 03:21:08,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 104 transitions, 534 flow, removed 11 selfloop flow, removed 5 redundant places. [2024-11-28 03:21:08,327 INFO L231 Difference]: Finished difference. Result has 80 places, 58 transitions, 251 flow [2024-11-28 03:21:08,327 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=251, PETRI_PLACES=80, PETRI_TRANSITIONS=58} [2024-11-28 03:21:08,327 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 18 predicate places. [2024-11-28 03:21:08,327 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 58 transitions, 251 flow [2024-11-28 03:21:08,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2024-11-28 03:21:08,328 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:08,328 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:08,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:21:08,328 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:08,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:08,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1008953624, now seen corresponding path program 2 times [2024-11-28 03:21:08,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:08,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145821065] [2024-11-28 03:21:08,329 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:21:08,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:08,379 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:21:08,379 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:21:08,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:08,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:08,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145821065] [2024-11-28 03:21:08,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145821065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:08,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:08,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:21:08,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910737903] [2024-11-28 03:21:08,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:08,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:21:08,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:08,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:21:08,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:21:08,595 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-28 03:21:08,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 58 transitions, 251 flow. Second operand has 7 states, 7 states have (on average 26.714285714285715) internal successors, (187), 7 states have internal predecessors, (187), 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) [2024-11-28 03:21:08,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:08,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-28 03:21:08,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:09,528 INFO L124 PetriNetUnfolderBase]: 4343/6306 cut-off events. [2024-11-28 03:21:09,528 INFO L125 PetriNetUnfolderBase]: For 5576/7237 co-relation queries the response was YES. [2024-11-28 03:21:09,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16913 conditions, 6306 events. 4343/6306 cut-off events. For 5576/7237 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 36215 event pairs, 119 based on Foata normal form. 314/6389 useless extension candidates. Maximal degree in co-relation 16891. Up to 2344 conditions per place. [2024-11-28 03:21:09,546 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 48 selfloop transitions, 18 changer transitions 13/100 dead transitions. [2024-11-28 03:21:09,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 100 transitions, 506 flow [2024-11-28 03:21:09,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:21:09,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:21:09,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 249 transitions. [2024-11-28 03:21:09,548 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6467532467532467 [2024-11-28 03:21:09,548 INFO L175 Difference]: Start difference. First operand has 80 places, 58 transitions, 251 flow. Second operand 7 states and 249 transitions. [2024-11-28 03:21:09,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 100 transitions, 506 flow [2024-11-28 03:21:09,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 100 transitions, 483 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-11-28 03:21:09,569 INFO L231 Difference]: Finished difference. Result has 76 places, 58 transitions, 281 flow [2024-11-28 03:21:09,569 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=281, PETRI_PLACES=76, PETRI_TRANSITIONS=58} [2024-11-28 03:21:09,570 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 14 predicate places. [2024-11-28 03:21:09,570 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 58 transitions, 281 flow [2024-11-28 03:21:09,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.714285714285715) internal successors, (187), 7 states have internal predecessors, (187), 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) [2024-11-28 03:21:09,571 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:09,571 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:09,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:21:09,571 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:09,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:09,573 INFO L85 PathProgramCache]: Analyzing trace with hash -424278239, now seen corresponding path program 1 times [2024-11-28 03:21:09,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:09,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100455264] [2024-11-28 03:21:09,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:09,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:09,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:09,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:09,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100455264] [2024-11-28 03:21:09,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100455264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:09,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:09,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:21:09,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344479938] [2024-11-28 03:21:09,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:09,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:21:09,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:09,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:21:09,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:21:09,926 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-28 03:21:09,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 58 transitions, 281 flow. Second operand has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 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) [2024-11-28 03:21:09,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:09,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-28 03:21:09,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:11,090 INFO L124 PetriNetUnfolderBase]: 5131/8833 cut-off events. [2024-11-28 03:21:11,090 INFO L125 PetriNetUnfolderBase]: For 6807/7255 co-relation queries the response was YES. [2024-11-28 03:21:11,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21907 conditions, 8833 events. 5131/8833 cut-off events. For 6807/7255 co-relation queries the response was YES. Maximal size of possible extension queue 611. Compared 68633 event pairs, 883 based on Foata normal form. 16/7976 useless extension candidates. Maximal degree in co-relation 21889. Up to 3149 conditions per place. [2024-11-28 03:21:11,150 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 40 selfloop transitions, 2 changer transitions 12/89 dead transitions. [2024-11-28 03:21:11,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 89 transitions, 469 flow [2024-11-28 03:21:11,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:21:11,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:21:11,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 205 transitions. [2024-11-28 03:21:11,152 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6212121212121212 [2024-11-28 03:21:11,152 INFO L175 Difference]: Start difference. First operand has 76 places, 58 transitions, 281 flow. Second operand 6 states and 205 transitions. [2024-11-28 03:21:11,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 89 transitions, 469 flow [2024-11-28 03:21:11,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 89 transitions, 363 flow, removed 22 selfloop flow, removed 10 redundant places. [2024-11-28 03:21:11,258 INFO L231 Difference]: Finished difference. Result has 75 places, 59 transitions, 202 flow [2024-11-28 03:21:11,258 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=202, PETRI_PLACES=75, PETRI_TRANSITIONS=59} [2024-11-28 03:21:11,259 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 13 predicate places. [2024-11-28 03:21:11,259 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 59 transitions, 202 flow [2024-11-28 03:21:11,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 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) [2024-11-28 03:21:11,259 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:11,259 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:11,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:21:11,260 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:11,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:11,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1969190041, now seen corresponding path program 2 times [2024-11-28 03:21:11,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:11,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143392025] [2024-11-28 03:21:11,261 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:21:11,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:11,307 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:21:11,307 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:21:12,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:12,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:12,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143392025] [2024-11-28 03:21:12,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143392025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:12,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:12,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:21:12,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917853783] [2024-11-28 03:21:12,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:12,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:21:12,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:12,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:21:12,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:21:12,269 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2024-11-28 03:21:12,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 59 transitions, 202 flow. Second operand has 8 states, 8 states have (on average 29.125) internal successors, (233), 8 states have internal predecessors, (233), 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) [2024-11-28 03:21:12,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:12,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2024-11-28 03:21:12,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:13,516 INFO L124 PetriNetUnfolderBase]: 5681/10248 cut-off events. [2024-11-28 03:21:13,516 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2024-11-28 03:21:13,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20222 conditions, 10248 events. 5681/10248 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 756. Compared 84691 event pairs, 1484 based on Foata normal form. 16/9230 useless extension candidates. Maximal degree in co-relation 20206. Up to 3759 conditions per place. [2024-11-28 03:21:13,572 INFO L140 encePairwiseOnDemand]: 47/55 looper letters, 35 selfloop transitions, 6 changer transitions 17/96 dead transitions. [2024-11-28 03:21:13,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 96 transitions, 402 flow [2024-11-28 03:21:13,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:21:13,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:21:13,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 302 transitions. [2024-11-28 03:21:13,575 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6101010101010101 [2024-11-28 03:21:13,575 INFO L175 Difference]: Start difference. First operand has 75 places, 59 transitions, 202 flow. Second operand 9 states and 302 transitions. [2024-11-28 03:21:13,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 96 transitions, 402 flow [2024-11-28 03:21:13,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 96 transitions, 395 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-28 03:21:13,586 INFO L231 Difference]: Finished difference. Result has 84 places, 63 transitions, 236 flow [2024-11-28 03:21:13,586 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=236, PETRI_PLACES=84, PETRI_TRANSITIONS=63} [2024-11-28 03:21:13,587 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 22 predicate places. [2024-11-28 03:21:13,587 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 63 transitions, 236 flow [2024-11-28 03:21:13,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.125) internal successors, (233), 8 states have internal predecessors, (233), 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) [2024-11-28 03:21:13,588 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:13,588 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:13,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:21:13,588 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:13,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:13,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1566069667, now seen corresponding path program 3 times [2024-11-28 03:21:13,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:13,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364803763] [2024-11-28 03:21:13,589 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:21:13,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:13,658 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 03:21:13,658 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-28 03:21:13,658 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:21:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:21:13,767 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:21:13,767 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:21:13,768 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-11-28 03:21:13,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2024-11-28 03:21:13,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2024-11-28 03:21:13,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2024-11-28 03:21:13,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-11-28 03:21:13,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-11-28 03:21:13,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-11-28 03:21:13,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2024-11-28 03:21:13,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:21:13,771 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:13,894 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 03:21:13,894 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:21:13,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:21:13 BasicIcfg [2024-11-28 03:21:13,906 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:21:13,906 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:21:13,906 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:21:13,906 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:21:13,910 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:53" (3/4) ... [2024-11-28 03:21:13,912 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:21:13,913 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:21:13,914 INFO L158 Benchmark]: Toolchain (without parser) took 22002.11ms. Allocated memory was 117.4MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 91.2MB in the beginning and 625.5MB in the end (delta: -534.4MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-28 03:21:13,914 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:21:13,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 523.08ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 67.9MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 03:21:13,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.32ms. Allocated memory is still 117.4MB. Free memory was 67.9MB in the beginning and 65.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:21:13,915 INFO L158 Benchmark]: Boogie Preprocessor took 83.41ms. Allocated memory is still 117.4MB. Free memory was 65.6MB in the beginning and 62.9MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:21:13,916 INFO L158 Benchmark]: RCFGBuilder took 1082.84ms. Allocated memory is still 117.4MB. Free memory was 62.7MB in the beginning and 68.1MB in the end (delta: -5.5MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2024-11-28 03:21:13,917 INFO L158 Benchmark]: TraceAbstraction took 20253.40ms. Allocated memory was 117.4MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 67.6MB in the beginning and 625.7MB in the end (delta: -558.0MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-28 03:21:13,917 INFO L158 Benchmark]: Witness Printer took 6.70ms. Allocated memory is still 1.7GB. Free memory was 625.7MB in the beginning and 625.5MB in the end (delta: 111.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:21:13,920 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 523.08ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 67.9MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.32ms. Allocated memory is still 117.4MB. Free memory was 67.9MB in the beginning and 65.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 83.41ms. Allocated memory is still 117.4MB. Free memory was 65.6MB in the beginning and 62.9MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1082.84ms. Allocated memory is still 117.4MB. Free memory was 62.7MB in the beginning and 68.1MB in the end (delta: -5.5MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * TraceAbstraction took 20253.40ms. Allocated memory was 117.4MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 67.6MB in the beginning and 625.7MB in the end (delta: -558.0MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 6.70ms. Allocated memory is still 1.7GB. Free memory was 625.7MB in the beginning and 625.5MB in the end (delta: 111.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p1_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; [L718] 0 int __unbuffered_p3_EBX = 0; [L720] 0 int a = 0; [L722] 0 int b = 0; [L723] 0 _Bool main$tmp_guard0; [L724] 0 _Bool main$tmp_guard1; [L726] 0 int x = 0; [L728] 0 int y = 0; [L730] 0 int z = 0; [L731] 0 _Bool z$flush_delayed; [L732] 0 int z$mem_tmp; [L733] 0 _Bool z$r_buff0_thd0; [L734] 0 _Bool z$r_buff0_thd1; [L735] 0 _Bool z$r_buff0_thd2; [L736] 0 _Bool z$r_buff0_thd3; [L737] 0 _Bool z$r_buff0_thd4; [L738] 0 _Bool z$r_buff1_thd0; [L739] 0 _Bool z$r_buff1_thd1; [L740] 0 _Bool z$r_buff1_thd2; [L741] 0 _Bool z$r_buff1_thd3; [L742] 0 _Bool z$r_buff1_thd4; [L743] 0 _Bool z$read_delayed; [L744] 0 int *z$read_delayed_var; [L745] 0 int z$w_buff0; [L746] 0 _Bool z$w_buff0_used; [L747] 0 int z$w_buff1; [L748] 0 _Bool z$w_buff1_used; [L749] 0 _Bool weak$$choice0; [L750] 0 _Bool weak$$choice2; [L856] 0 pthread_t t973; [L857] FCALL, FORK 0 pthread_create(&t973, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t973=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L858] 0 pthread_t t974; [L859] FCALL, FORK 0 pthread_create(&t974, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t973=0, t974=1, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L860] 0 pthread_t t975; [L861] FCALL, FORK 0 pthread_create(&t975, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t973=0, t974=1, t975=2, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L862] 0 pthread_t t976; [L863] FCALL, FORK 0 pthread_create(&t976, ((void *)0), P3, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t973=0, t974=1, t975=2, t976=3, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L812] 4 z$w_buff1 = z$w_buff0 [L813] 4 z$w_buff0 = 1 [L814] 4 z$w_buff1_used = z$w_buff0_used [L815] 4 z$w_buff0_used = (_Bool)1 [L816] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L816] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L817] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L818] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L819] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L820] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L821] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L822] 4 z$r_buff0_thd4 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L825] 4 a = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L828] 4 __unbuffered_p3_EAX = a VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L831] 4 __unbuffered_p3_EBX = b VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L754] 1 b = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L757] 1 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L769] 2 x = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L772] 2 __unbuffered_p1_EAX = y VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L784] 3 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L787] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L788] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L789] 3 z$flush_delayed = weak$$choice2 [L790] 3 z$mem_tmp = z [L791] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L792] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L793] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L794] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L795] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L796] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L797] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L798] 3 __unbuffered_p2_EAX = z [L799] 3 z = z$flush_delayed ? z$mem_tmp : z [L800] 3 z$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L834] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L835] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L836] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L837] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L838] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L762] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L805] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L777] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L841] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L865] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t973=0, t974=1, t975=2, t976=3, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L867] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L867] RET 0 assume_abort_if_not(main$tmp_guard0) [L869] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L870] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L871] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L872] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L873] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t973=0, t974=1, t975=2, t976=3, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L876] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t973=0, t974=1, t975=2, t976=3, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L878] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L17] 0 __assert_fail ("0", "mix037.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 857]: 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. - UnprovableResult [Line: 863]: 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. - UnprovableResult [Line: 861]: 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. - UnprovableResult [Line: 859]: 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 9 procedures, 89 locations, 8 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: 20.0s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 14.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 614 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 579 mSDsluCounter, 95 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 72 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1520 IncrementalHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 23 mSDtfsCounter, 1520 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=291occurred in iteration=8, InterpolantAutomatonStates: 71, 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: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 354 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 303 ConstructedInterpolants, 0 QuantifiedInterpolants, 1074 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 03:21:13,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix037.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB --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 be02b321ccd6bac38d207cd4c595c173c1a2ce3b705272ff0087ad749834a1ef --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:21:16,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:21:16,930 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-28 03:21:16,941 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:21:16,942 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:21:17,029 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:21:17,030 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:21:17,031 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:21:17,033 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:21:17,034 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:21:17,037 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:21:17,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:21:17,038 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:21:17,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:21:17,038 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:21:17,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:21:17,038 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:21:17,038 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:21:17,038 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:21:17,038 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:21:17,038 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 03:21:17,038 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 03:21:17,039 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 03:21:17,039 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:21:17,039 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:21:17,039 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:21:17,039 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:21:17,039 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:21:17,039 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:21:17,039 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:21:17,039 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:21:17,039 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:21:17,039 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:21:17,040 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:21:17,040 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:21:17,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:21:17,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:21:17,045 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:21:17,045 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:21:17,045 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:21:17,045 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:21:17,046 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:21:17,046 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:21:17,046 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:21:17,046 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:21:17,046 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:21:17,046 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:21:17,046 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:21:17,046 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:21:17,046 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB 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 -> be02b321ccd6bac38d207cd4c595c173c1a2ce3b705272ff0087ad749834a1ef [2024-11-28 03:21:17,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:21:17,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:21:17,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:21:17,356 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:21:17,357 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:21:17,358 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/mix037.opt.i [2024-11-28 03:21:20,502 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/data/364df4f91/e77e3a33be06435b84a7411b4dd5b791/FLAG1a95fdba5 [2024-11-28 03:21:20,937 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:21:20,941 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/sv-benchmarks/c/pthread-wmm/mix037.opt.i [2024-11-28 03:21:20,962 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/data/364df4f91/e77e3a33be06435b84a7411b4dd5b791/FLAG1a95fdba5 [2024-11-28 03:21:20,984 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/data/364df4f91/e77e3a33be06435b84a7411b4dd5b791 [2024-11-28 03:21:20,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:21:20,990 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:21:20,991 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:21:20,991 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:21:20,998 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:21:20,999 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:20" (1/1) ... [2024-11-28 03:21:21,002 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2322c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:21, skipping insertion in model container [2024-11-28 03:21:21,002 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:20" (1/1) ... [2024-11-28 03:21:21,052 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:21:21,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:21:21,571 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:21:21,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:21:21,725 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:21:21,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:21 WrapperNode [2024-11-28 03:21:21,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:21:21,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:21:21,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:21:21,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:21:21,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:21" (1/1) ... [2024-11-28 03:21:21,775 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:21" (1/1) ... [2024-11-28 03:21:21,805 INFO L138 Inliner]: procedures = 177, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 140 [2024-11-28 03:21:21,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:21:21,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:21:21,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:21:21,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:21:21,818 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:21" (1/1) ... [2024-11-28 03:21:21,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:21" (1/1) ... [2024-11-28 03:21:21,822 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:21" (1/1) ... [2024-11-28 03:21:21,840 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:21:21,840 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:21" (1/1) ... [2024-11-28 03:21:21,841 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:21" (1/1) ... [2024-11-28 03:21:21,860 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:21" (1/1) ... [2024-11-28 03:21:21,861 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:21" (1/1) ... [2024-11-28 03:21:21,869 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:21" (1/1) ... [2024-11-28 03:21:21,875 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:21" (1/1) ... [2024-11-28 03:21:21,876 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:21" (1/1) ... [2024-11-28 03:21:21,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:21:21,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:21:21,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:21:21,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:21:21,890 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:21" (1/1) ... [2024-11-28 03:21:21,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:21:21,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:21,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:21:21,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:21:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 03:21:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:21:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:21:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 03:21:21,976 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 03:21:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 03:21:21,976 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 03:21:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-28 03:21:21,976 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-28 03:21:21,977 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-28 03:21:21,977 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-28 03:21:21,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 03:21:21,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:21:21,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:21:21,979 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:21:22,223 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:21:22,226 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:21:22,736 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:21:22,736 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:21:23,070 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:21:23,071 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:21:23,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:23 BoogieIcfgContainer [2024-11-28 03:21:23,071 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:21:23,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:21:23,074 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:21:23,083 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:21:23,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:21:20" (1/3) ... [2024-11-28 03:21:23,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1564e174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:23, skipping insertion in model container [2024-11-28 03:21:23,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:21" (2/3) ... [2024-11-28 03:21:23,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1564e174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:23, skipping insertion in model container [2024-11-28 03:21:23,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:23" (3/3) ... [2024-11-28 03:21:23,088 INFO L128 eAbstractionObserver]: Analyzing ICFG mix037.opt.i [2024-11-28 03:21:23,105 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:21:23,108 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix037.opt.i that has 5 procedures, 54 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-11-28 03:21:23,109 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:21:23,241 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:21:23,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-28 03:21:23,341 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-28 03:21:23,348 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:21:23,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 106 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-11-28 03:21:23,354 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-28 03:21:23,363 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-28 03:21:23,378 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:21:23,400 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@38fd6e5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:21:23,400 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-28 03:21:23,425 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:21:23,425 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-28 03:21:23,426 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:21:23,426 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:23,426 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:23,427 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:23,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:23,434 INFO L85 PathProgramCache]: Analyzing trace with hash -747556111, now seen corresponding path program 1 times [2024-11-28 03:21:23,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:21:23,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1717855905] [2024-11-28 03:21:23,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:23,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:23,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:23,456 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:23,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:21:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:23,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:21:23,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:23,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:23,700 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:21:23,701 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:21:23,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717855905] [2024-11-28 03:21:23,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717855905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:23,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:23,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 03:21:23,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512489878] [2024-11-28 03:21:23,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:23,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:21:23,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:21:23,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:21:23,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:21:23,742 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 55 [2024-11-28 03:21:23,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-11-28 03:21:23,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:23,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 55 [2024-11-28 03:21:23,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:24,447 INFO L124 PetriNetUnfolderBase]: 931/1851 cut-off events. [2024-11-28 03:21:24,449 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:21:24,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3247 conditions, 1851 events. 931/1851 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 14072 event pairs, 199 based on Foata normal form. 96/1918 useless extension candidates. Maximal degree in co-relation 3235. Up to 1021 conditions per place. [2024-11-28 03:21:24,484 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 29 selfloop transitions, 2 changer transitions 2/58 dead transitions. [2024-11-28 03:21:24,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 58 transitions, 194 flow [2024-11-28 03:21:24,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:21:24,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:21:24,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2024-11-28 03:21:24,502 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7575757575757576 [2024-11-28 03:21:24,504 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 125 transitions. [2024-11-28 03:21:24,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 58 transitions, 194 flow [2024-11-28 03:21:24,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 58 transitions, 190 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 03:21:24,516 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-28 03:21:24,519 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-11-28 03:21:24,524 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-28 03:21:24,525 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-28 03:21:24,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-11-28 03:21:24,525 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:24,525 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:24,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:21:24,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:24,727 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:24,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:24,728 INFO L85 PathProgramCache]: Analyzing trace with hash 798924591, now seen corresponding path program 1 times [2024-11-28 03:21:24,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:21:24,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [926021712] [2024-11-28 03:21:24,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:24,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:24,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:24,732 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:24,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:21:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:24,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:21:24,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:24,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:24,923 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:21:24,923 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:21:24,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926021712] [2024-11-28 03:21:24,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926021712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:24,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:24,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 03:21:24,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564972676] [2024-11-28 03:21:24,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:24,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:21:24,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:21:24,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:21:24,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:21:24,929 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 55 [2024-11-28 03:21:24,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-28 03:21:24,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:24,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 55 [2024-11-28 03:21:24,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:25,350 INFO L124 PetriNetUnfolderBase]: 815/1519 cut-off events. [2024-11-28 03:21:25,350 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-11-28 03:21:25,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2833 conditions, 1519 events. 815/1519 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 11075 event pairs, 815 based on Foata normal form. 48/1502 useless extension candidates. Maximal degree in co-relation 2823. Up to 1188 conditions per place. [2024-11-28 03:21:25,365 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 19 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-28 03:21:25,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 144 flow [2024-11-28 03:21:25,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:21:25,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:21:25,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-11-28 03:21:25,369 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6424242424242425 [2024-11-28 03:21:25,369 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 106 transitions. [2024-11-28 03:21:25,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 144 flow [2024-11-28 03:21:25,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 140 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:21:25,376 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-28 03:21:25,377 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-11-28 03:21:25,378 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-28 03:21:25,378 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-28 03:21:25,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-28 03:21:25,378 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:25,379 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:25,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:21:25,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:25,579 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:25,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:25,580 INFO L85 PathProgramCache]: Analyzing trace with hash 798925754, now seen corresponding path program 1 times [2024-11-28 03:21:25,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:21:25,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1362176818] [2024-11-28 03:21:25,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:25,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:25,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:25,585 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:25,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:21:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:25,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:21:25,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:25,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:25,757 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:21:25,757 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:21:25,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362176818] [2024-11-28 03:21:25,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362176818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:25,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:25,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:21:25,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121743300] [2024-11-28 03:21:25,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:25,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:21:25,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:21:25,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:21:25,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:21:25,776 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-28 03:21:25,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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) [2024-11-28 03:21:25,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:25,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-28 03:21:25,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:26,820 INFO L124 PetriNetUnfolderBase]: 3857/6079 cut-off events. [2024-11-28 03:21:26,820 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:21:26,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11545 conditions, 6079 events. 3857/6079 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 42275 event pairs, 536 based on Foata normal form. 180/6243 useless extension candidates. Maximal degree in co-relation 11539. Up to 3346 conditions per place. [2024-11-28 03:21:26,871 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 44 selfloop transitions, 6 changer transitions 1/70 dead transitions. [2024-11-28 03:21:26,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 70 transitions, 258 flow [2024-11-28 03:21:26,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:21:26,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:21:26,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 149 transitions. [2024-11-28 03:21:26,873 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6772727272727272 [2024-11-28 03:21:26,873 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 4 states and 149 transitions. [2024-11-28 03:21:26,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 70 transitions, 258 flow [2024-11-28 03:21:26,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 70 transitions, 257 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:21:26,876 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 139 flow [2024-11-28 03:21:26,876 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=139, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-11-28 03:21:26,877 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -3 predicate places. [2024-11-28 03:21:26,877 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 139 flow [2024-11-28 03:21:26,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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) [2024-11-28 03:21:26,877 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:26,878 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:26,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:21:27,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:27,078 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:27,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:27,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1064913395, now seen corresponding path program 1 times [2024-11-28 03:21:27,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:21:27,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [654826628] [2024-11-28 03:21:27,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:27,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:27,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:27,084 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:27,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:21:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:27,191 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:21:27,193 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:27,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:27,253 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:21:27,253 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:21:27,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654826628] [2024-11-28 03:21:27,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654826628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:27,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:27,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:21:27,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038814267] [2024-11-28 03:21:27,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:27,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:21:27,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:21:27,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:21:27,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:21:27,266 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-28 03:21:27,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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) [2024-11-28 03:21:27,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:27,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-28 03:21:27,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:28,185 INFO L124 PetriNetUnfolderBase]: 3272/5182 cut-off events. [2024-11-28 03:21:28,186 INFO L125 PetriNetUnfolderBase]: For 1395/1395 co-relation queries the response was YES. [2024-11-28 03:21:28,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11814 conditions, 5182 events. 3272/5182 cut-off events. For 1395/1395 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 34779 event pairs, 192 based on Foata normal form. 174/5342 useless extension candidates. Maximal degree in co-relation 11805. Up to 2581 conditions per place. [2024-11-28 03:21:28,235 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 56 selfloop transitions, 10 changer transitions 1/86 dead transitions. [2024-11-28 03:21:28,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 86 transitions, 378 flow [2024-11-28 03:21:28,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:21:28,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:21:28,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 189 transitions. [2024-11-28 03:21:28,238 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6872727272727273 [2024-11-28 03:21:28,238 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 139 flow. Second operand 5 states and 189 transitions. [2024-11-28 03:21:28,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 86 transitions, 378 flow [2024-11-28 03:21:28,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 86 transitions, 367 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-28 03:21:28,245 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 191 flow [2024-11-28 03:21:28,245 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=191, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2024-11-28 03:21:28,246 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 1 predicate places. [2024-11-28 03:21:28,247 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 191 flow [2024-11-28 03:21:28,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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) [2024-11-28 03:21:28,247 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:28,247 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:28,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:21:28,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:28,448 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:28,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:28,449 INFO L85 PathProgramCache]: Analyzing trace with hash 996644896, now seen corresponding path program 1 times [2024-11-28 03:21:28,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:21:28,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1457795516] [2024-11-28 03:21:28,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:28,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:28,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:28,454 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:28,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:21:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:28,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:21:28,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:28,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:28,638 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:21:28,638 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:21:28,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457795516] [2024-11-28 03:21:28,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457795516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:28,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:28,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:21:28,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612479453] [2024-11-28 03:21:28,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:28,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:21:28,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:21:28,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:21:28,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:21:28,666 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-28 03:21:28,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 191 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2024-11-28 03:21:28,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:28,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-28 03:21:28,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:29,421 INFO L124 PetriNetUnfolderBase]: 2201/3465 cut-off events. [2024-11-28 03:21:29,421 INFO L125 PetriNetUnfolderBase]: For 2772/2772 co-relation queries the response was YES. [2024-11-28 03:21:29,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8968 conditions, 3465 events. 2201/3465 cut-off events. For 2772/2772 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 20504 event pairs, 69 based on Foata normal form. 140/3591 useless extension candidates. Maximal degree in co-relation 8957. Up to 1221 conditions per place. [2024-11-28 03:21:29,449 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 66 selfloop transitions, 14 changer transitions 1/100 dead transitions. [2024-11-28 03:21:29,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 100 transitions, 497 flow [2024-11-28 03:21:29,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:21:29,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:21:29,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 227 transitions. [2024-11-28 03:21:29,451 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6878787878787879 [2024-11-28 03:21:29,451 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 191 flow. Second operand 6 states and 227 transitions. [2024-11-28 03:21:29,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 100 transitions, 497 flow [2024-11-28 03:21:29,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 100 transitions, 467 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-28 03:21:29,462 INFO L231 Difference]: Finished difference. Result has 66 places, 56 transitions, 241 flow [2024-11-28 03:21:29,463 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=66, PETRI_TRANSITIONS=56} [2024-11-28 03:21:29,463 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 4 predicate places. [2024-11-28 03:21:29,463 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 56 transitions, 241 flow [2024-11-28 03:21:29,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2024-11-28 03:21:29,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:29,464 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:29,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:21:29,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:29,669 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:29,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:29,670 INFO L85 PathProgramCache]: Analyzing trace with hash 375542143, now seen corresponding path program 1 times [2024-11-28 03:21:29,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:21:29,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1097792418] [2024-11-28 03:21:29,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:29,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:29,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:29,673 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:29,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:21:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:29,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:21:29,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:29,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:29,883 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:21:29,883 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:21:29,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097792418] [2024-11-28 03:21:29,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097792418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:29,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:29,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:21:29,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391318569] [2024-11-28 03:21:29,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:29,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:21:29,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:21:29,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:21:29,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:21:29,894 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-28 03:21:29,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 56 transitions, 241 flow. Second operand has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 7 states have internal predecessors, (186), 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) [2024-11-28 03:21:29,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:29,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-28 03:21:29,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:30,472 INFO L124 PetriNetUnfolderBase]: 1353/2045 cut-off events. [2024-11-28 03:21:30,473 INFO L125 PetriNetUnfolderBase]: For 3118/3118 co-relation queries the response was YES. [2024-11-28 03:21:30,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6057 conditions, 2045 events. 1353/2045 cut-off events. For 3118/3118 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 9954 event pairs, 39 based on Foata normal form. 72/2103 useless extension candidates. Maximal degree in co-relation 6045. Up to 668 conditions per place. [2024-11-28 03:21:30,487 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 60 selfloop transitions, 18 changer transitions 1/98 dead transitions. [2024-11-28 03:21:30,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 98 transitions, 499 flow [2024-11-28 03:21:30,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:21:30,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:21:30,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 249 transitions. [2024-11-28 03:21:30,488 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6467532467532467 [2024-11-28 03:21:30,488 INFO L175 Difference]: Start difference. First operand has 66 places, 56 transitions, 241 flow. Second operand 7 states and 249 transitions. [2024-11-28 03:21:30,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 98 transitions, 499 flow [2024-11-28 03:21:30,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 98 transitions, 453 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-28 03:21:30,501 INFO L231 Difference]: Finished difference. Result has 69 places, 56 transitions, 251 flow [2024-11-28 03:21:30,501 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=251, PETRI_PLACES=69, PETRI_TRANSITIONS=56} [2024-11-28 03:21:30,502 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 7 predicate places. [2024-11-28 03:21:30,502 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 56 transitions, 251 flow [2024-11-28 03:21:30,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 7 states have internal predecessors, (186), 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) [2024-11-28 03:21:30,502 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:30,503 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:30,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 03:21:30,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:30,706 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:30,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:30,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1034812573, now seen corresponding path program 1 times [2024-11-28 03:21:30,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:21:30,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [600373866] [2024-11-28 03:21:30,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:30,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:30,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:30,711 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:30,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:21:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:30,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 03:21:30,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:31,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:31,161 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:21:31,161 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:21:31,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600373866] [2024-11-28 03:21:31,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600373866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:31,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:31,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:21:31,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101183149] [2024-11-28 03:21:31,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:31,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:21:31,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:21:31,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:21:31,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:21:31,195 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-28 03:21:31,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 56 transitions, 251 flow. Second operand has 9 states, 9 states have (on average 23.666666666666668) internal successors, (213), 9 states have internal predecessors, (213), 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) [2024-11-28 03:21:31,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:31,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-28 03:21:31,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:32,040 INFO L124 PetriNetUnfolderBase]: 2713/3998 cut-off events. [2024-11-28 03:21:32,041 INFO L125 PetriNetUnfolderBase]: For 5036/5040 co-relation queries the response was YES. [2024-11-28 03:21:32,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11525 conditions, 3998 events. 2713/3998 cut-off events. For 5036/5040 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 21097 event pairs, 747 based on Foata normal form. 20/4007 useless extension candidates. Maximal degree in co-relation 11512. Up to 2581 conditions per place. [2024-11-28 03:21:32,066 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 56 selfloop transitions, 9 changer transitions 44/125 dead transitions. [2024-11-28 03:21:32,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 125 transitions, 763 flow [2024-11-28 03:21:32,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:21:32,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:21:32,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 283 transitions. [2024-11-28 03:21:32,068 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5717171717171717 [2024-11-28 03:21:32,068 INFO L175 Difference]: Start difference. First operand has 69 places, 56 transitions, 251 flow. Second operand 9 states and 283 transitions. [2024-11-28 03:21:32,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 125 transitions, 763 flow [2024-11-28 03:21:32,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 125 transitions, 562 flow, removed 34 selfloop flow, removed 10 redundant places. [2024-11-28 03:21:32,107 INFO L231 Difference]: Finished difference. Result has 73 places, 60 transitions, 209 flow [2024-11-28 03:21:32,107 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=209, PETRI_PLACES=73, PETRI_TRANSITIONS=60} [2024-11-28 03:21:32,108 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 11 predicate places. [2024-11-28 03:21:32,108 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 60 transitions, 209 flow [2024-11-28 03:21:32,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 23.666666666666668) internal successors, (213), 9 states have internal predecessors, (213), 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) [2024-11-28 03:21:32,108 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:32,108 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:32,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 03:21:32,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:32,309 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:32,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:32,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1636066247, now seen corresponding path program 2 times [2024-11-28 03:21:32,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:21:32,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122439433] [2024-11-28 03:21:32,311 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:21:32,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:32,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:32,313 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:32,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:21:32,425 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:21:32,425 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:21:32,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:21:32,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:32,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:32,527 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:21:32,527 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:21:32,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122439433] [2024-11-28 03:21:32,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122439433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:32,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:32,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:21:32,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776311550] [2024-11-28 03:21:32,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:32,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:21:32,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:21:32,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:21:32,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:21:32,547 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-28 03:21:32,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 60 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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) [2024-11-28 03:21:32,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:32,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-28 03:21:32,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:33,164 INFO L124 PetriNetUnfolderBase]: 2291/4022 cut-off events. [2024-11-28 03:21:33,165 INFO L125 PetriNetUnfolderBase]: For 192/192 co-relation queries the response was YES. [2024-11-28 03:21:33,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8131 conditions, 4022 events. 2291/4022 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 27243 event pairs, 1050 based on Foata normal form. 16/3637 useless extension candidates. Maximal degree in co-relation 8117. Up to 1638 conditions per place. [2024-11-28 03:21:33,195 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 36 selfloop transitions, 2 changer transitions 19/92 dead transitions. [2024-11-28 03:21:33,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 92 transitions, 398 flow [2024-11-28 03:21:33,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:21:33,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:21:33,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 207 transitions. [2024-11-28 03:21:33,198 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6272727272727273 [2024-11-28 03:21:33,198 INFO L175 Difference]: Start difference. First operand has 73 places, 60 transitions, 209 flow. Second operand 6 states and 207 transitions. [2024-11-28 03:21:33,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 92 transitions, 398 flow [2024-11-28 03:21:33,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 92 transitions, 368 flow, removed 7 selfloop flow, removed 6 redundant places. [2024-11-28 03:21:33,205 INFO L231 Difference]: Finished difference. Result has 71 places, 60 transitions, 198 flow [2024-11-28 03:21:33,205 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=198, PETRI_PLACES=71, PETRI_TRANSITIONS=60} [2024-11-28 03:21:33,206 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 9 predicate places. [2024-11-28 03:21:33,207 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 60 transitions, 198 flow [2024-11-28 03:21:33,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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) [2024-11-28 03:21:33,208 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:33,208 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:33,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 03:21:33,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:33,408 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:33,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:33,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1682633363, now seen corresponding path program 3 times [2024-11-28 03:21:33,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:21:33,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [326461330] [2024-11-28 03:21:33,410 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:21:33,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:33,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:33,413 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:33,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:21:33,538 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 03:21:33,538 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:21:33,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 03:21:33,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:33,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:33,808 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:21:33,808 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:21:33,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326461330] [2024-11-28 03:21:33,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326461330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:33,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:33,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:21:33,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514687828] [2024-11-28 03:21:33,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:33,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:21:33,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:21:33,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:21:33,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:21:33,842 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-28 03:21:33,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 60 transitions, 198 flow. Second operand has 9 states, 9 states have (on average 23.666666666666668) internal successors, (213), 9 states have internal predecessors, (213), 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) [2024-11-28 03:21:33,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:33,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-28 03:21:33,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:34,943 INFO L124 PetriNetUnfolderBase]: 7055/10445 cut-off events. [2024-11-28 03:21:34,943 INFO L125 PetriNetUnfolderBase]: For 1826/1892 co-relation queries the response was YES. [2024-11-28 03:21:34,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24352 conditions, 10445 events. 7055/10445 cut-off events. For 1826/1892 co-relation queries the response was YES. Maximal size of possible extension queue 497. Compared 64629 event pairs, 2097 based on Foata normal form. 24/10286 useless extension candidates. Maximal degree in co-relation 24339. Up to 6099 conditions per place. [2024-11-28 03:21:34,995 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 51 selfloop transitions, 12 changer transitions 52/133 dead transitions. [2024-11-28 03:21:34,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 133 transitions, 647 flow [2024-11-28 03:21:34,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:21:34,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:21:34,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 284 transitions. [2024-11-28 03:21:34,998 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5737373737373738 [2024-11-28 03:21:34,998 INFO L175 Difference]: Start difference. First operand has 71 places, 60 transitions, 198 flow. Second operand 9 states and 284 transitions. [2024-11-28 03:21:34,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 133 transitions, 647 flow [2024-11-28 03:21:35,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 133 transitions, 635 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-28 03:21:35,002 INFO L231 Difference]: Finished difference. Result has 78 places, 65 transitions, 261 flow [2024-11-28 03:21:35,002 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=261, PETRI_PLACES=78, PETRI_TRANSITIONS=65} [2024-11-28 03:21:35,003 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 16 predicate places. [2024-11-28 03:21:35,003 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 65 transitions, 261 flow [2024-11-28 03:21:35,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 23.666666666666668) internal successors, (213), 9 states have internal predecessors, (213), 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) [2024-11-28 03:21:35,003 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:35,004 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:35,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 03:21:35,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:35,208 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:35,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:35,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1257780147, now seen corresponding path program 4 times [2024-11-28 03:21:35,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:21:35,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [824507727] [2024-11-28 03:21:35,209 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:21:35,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:35,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:35,215 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:35,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:21:35,321 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:21:35,321 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:21:35,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:21:35,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:35,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:35,579 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:21:35,579 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:21:35,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824507727] [2024-11-28 03:21:35,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824507727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:35,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:35,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:21:35,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923892386] [2024-11-28 03:21:35,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:35,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:21:35,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:21:35,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:21:35,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:21:35,594 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2024-11-28 03:21:35,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 65 transitions, 261 flow. Second operand has 8 states, 8 states have (on average 29.25) internal successors, (234), 8 states have internal predecessors, (234), 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) [2024-11-28 03:21:35,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:35,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2024-11-28 03:21:35,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:36,604 INFO L124 PetriNetUnfolderBase]: 3355/6038 cut-off events. [2024-11-28 03:21:36,604 INFO L125 PetriNetUnfolderBase]: For 399/404 co-relation queries the response was YES. [2024-11-28 03:21:36,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12295 conditions, 6038 events. 3355/6038 cut-off events. For 399/404 co-relation queries the response was YES. Maximal size of possible extension queue 452. Compared 45207 event pairs, 1049 based on Foata normal form. 16/5480 useless extension candidates. Maximal degree in co-relation 12278. Up to 1873 conditions per place. [2024-11-28 03:21:36,652 INFO L140 encePairwiseOnDemand]: 47/55 looper letters, 37 selfloop transitions, 5 changer transitions 21/106 dead transitions. [2024-11-28 03:21:36,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 106 transitions, 483 flow [2024-11-28 03:21:36,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:21:36,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:21:36,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 307 transitions. [2024-11-28 03:21:36,655 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6202020202020202 [2024-11-28 03:21:36,655 INFO L175 Difference]: Start difference. First operand has 78 places, 65 transitions, 261 flow. Second operand 9 states and 307 transitions. [2024-11-28 03:21:36,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 106 transitions, 483 flow [2024-11-28 03:21:36,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 106 transitions, 456 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-28 03:21:36,662 INFO L231 Difference]: Finished difference. Result has 83 places, 69 transitions, 283 flow [2024-11-28 03:21:36,662 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=283, PETRI_PLACES=83, PETRI_TRANSITIONS=69} [2024-11-28 03:21:36,663 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 21 predicate places. [2024-11-28 03:21:36,663 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 69 transitions, 283 flow [2024-11-28 03:21:36,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.25) internal successors, (234), 8 states have internal predecessors, (234), 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) [2024-11-28 03:21:36,664 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:36,664 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:36,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 03:21:36,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:36,865 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:36,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:36,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1448746997, now seen corresponding path program 5 times [2024-11-28 03:21:36,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:21:36,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [799781881] [2024-11-28 03:21:36,866 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:21:36,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:36,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:36,869 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:36,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 03:21:36,981 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:21:36,981 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:21:36,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 03:21:36,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:37,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:37,132 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:21:37,132 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:21:37,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799781881] [2024-11-28 03:21:37,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799781881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:37,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:37,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:21:37,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643145566] [2024-11-28 03:21:37,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:37,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:21:37,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:21:37,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:21:37,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:21:37,160 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-28 03:21:37,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 69 transitions, 283 flow. Second operand has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 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) [2024-11-28 03:21:37,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:21:37,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-28 03:21:37,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:21:38,875 INFO L124 PetriNetUnfolderBase]: 11219/17549 cut-off events. [2024-11-28 03:21:38,875 INFO L125 PetriNetUnfolderBase]: For 8434/8747 co-relation queries the response was YES. [2024-11-28 03:21:38,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43811 conditions, 17549 events. 11219/17549 cut-off events. For 8434/8747 co-relation queries the response was YES. Maximal size of possible extension queue 994. Compared 127433 event pairs, 1221 based on Foata normal form. 48/17321 useless extension candidates. Maximal degree in co-relation 43791. Up to 8314 conditions per place. [2024-11-28 03:21:38,962 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 76 selfloop transitions, 11 changer transitions 41/146 dead transitions. [2024-11-28 03:21:38,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 146 transitions, 811 flow [2024-11-28 03:21:38,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:21:38,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:21:38,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 285 transitions. [2024-11-28 03:21:38,964 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2024-11-28 03:21:38,964 INFO L175 Difference]: Start difference. First operand has 83 places, 69 transitions, 283 flow. Second operand 9 states and 285 transitions. [2024-11-28 03:21:38,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 146 transitions, 811 flow [2024-11-28 03:21:39,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 146 transitions, 797 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-11-28 03:21:39,004 INFO L231 Difference]: Finished difference. Result has 88 places, 66 transitions, 292 flow [2024-11-28 03:21:39,004 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=292, PETRI_PLACES=88, PETRI_TRANSITIONS=66} [2024-11-28 03:21:39,004 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 26 predicate places. [2024-11-28 03:21:39,005 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 66 transitions, 292 flow [2024-11-28 03:21:39,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 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) [2024-11-28 03:21:39,005 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:21:39,005 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:39,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 03:21:39,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:39,206 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:21:39,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:39,207 INFO L85 PathProgramCache]: Analyzing trace with hash -321702401, now seen corresponding path program 6 times [2024-11-28 03:21:39,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:21:39,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1418970134] [2024-11-28 03:21:39,207 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 03:21:39,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:39,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:39,210 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:39,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 03:21:39,320 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 03:21:39,321 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-28 03:21:39,321 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:21:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:21:39,470 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-28 03:21:39,470 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:21:39,471 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-11-28 03:21:39,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2024-11-28 03:21:39,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2024-11-28 03:21:39,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2024-11-28 03:21:39,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-11-28 03:21:39,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-11-28 03:21:39,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-11-28 03:21:39,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2024-11-28 03:21:39,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 03:21:39,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:39,679 INFO L422 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:39,826 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 03:21:39,829 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:21:39,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:21:39 BasicIcfg [2024-11-28 03:21:39,838 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:21:39,838 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:21:39,839 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:21:39,839 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:21:39,840 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:23" (3/4) ... [2024-11-28 03:21:39,843 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:21:39,844 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:21:39,845 INFO L158 Benchmark]: Toolchain (without parser) took 18854.85ms. Allocated memory was 117.4MB in the beginning and 645.9MB in the end (delta: 528.5MB). Free memory was 91.5MB in the beginning and 202.8MB in the end (delta: -111.2MB). Peak memory consumption was 414.1MB. Max. memory is 16.1GB. [2024-11-28 03:21:39,845 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:21:39,845 INFO L158 Benchmark]: CACSL2BoogieTranslator took 736.00ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 67.9MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 03:21:39,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.72ms. Allocated memory is still 117.4MB. Free memory was 67.9MB in the beginning and 65.6MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:21:39,846 INFO L158 Benchmark]: Boogie Preprocessor took 77.82ms. Allocated memory is still 117.4MB. Free memory was 65.6MB in the beginning and 62.9MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:21:39,846 INFO L158 Benchmark]: RCFGBuilder took 1186.55ms. Allocated memory is still 117.4MB. Free memory was 62.9MB in the beginning and 45.3MB in the end (delta: 17.6MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2024-11-28 03:21:39,847 INFO L158 Benchmark]: TraceAbstraction took 16764.60ms. Allocated memory was 117.4MB in the beginning and 645.9MB in the end (delta: 528.5MB). Free memory was 44.3MB in the beginning and 202.8MB in the end (delta: -158.5MB). Peak memory consumption was 367.4MB. Max. memory is 16.1GB. [2024-11-28 03:21:39,847 INFO L158 Benchmark]: Witness Printer took 5.72ms. Allocated memory is still 645.9MB. Free memory was 202.8MB in the beginning and 202.8MB in the end (delta: 18.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:21:39,849 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 736.00ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 67.9MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.72ms. Allocated memory is still 117.4MB. Free memory was 67.9MB in the beginning and 65.6MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 77.82ms. Allocated memory is still 117.4MB. Free memory was 65.6MB in the beginning and 62.9MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1186.55ms. Allocated memory is still 117.4MB. Free memory was 62.9MB in the beginning and 45.3MB in the end (delta: 17.6MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * TraceAbstraction took 16764.60ms. Allocated memory was 117.4MB in the beginning and 645.9MB in the end (delta: 528.5MB). Free memory was 44.3MB in the beginning and 202.8MB in the end (delta: -158.5MB). Peak memory consumption was 367.4MB. Max. memory is 16.1GB. * Witness Printer took 5.72ms. Allocated memory is still 645.9MB. Free memory was 202.8MB in the beginning and 202.8MB in the end (delta: 18.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p1_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; [L718] 0 int __unbuffered_p3_EBX = 0; [L720] 0 int a = 0; [L722] 0 int b = 0; [L723] 0 _Bool main$tmp_guard0; [L724] 0 _Bool main$tmp_guard1; [L726] 0 int x = 0; [L728] 0 int y = 0; [L730] 0 int z = 0; [L731] 0 _Bool z$flush_delayed; [L732] 0 int z$mem_tmp; [L733] 0 _Bool z$r_buff0_thd0; [L734] 0 _Bool z$r_buff0_thd1; [L735] 0 _Bool z$r_buff0_thd2; [L736] 0 _Bool z$r_buff0_thd3; [L737] 0 _Bool z$r_buff0_thd4; [L738] 0 _Bool z$r_buff1_thd0; [L739] 0 _Bool z$r_buff1_thd1; [L740] 0 _Bool z$r_buff1_thd2; [L741] 0 _Bool z$r_buff1_thd3; [L742] 0 _Bool z$r_buff1_thd4; [L743] 0 _Bool z$read_delayed; [L744] 0 int *z$read_delayed_var; [L745] 0 int z$w_buff0; [L746] 0 _Bool z$w_buff0_used; [L747] 0 int z$w_buff1; [L748] 0 _Bool z$w_buff1_used; [L749] 0 _Bool weak$$choice0; [L750] 0 _Bool weak$$choice2; [L856] 0 pthread_t t973; [L857] FCALL, FORK 0 pthread_create(&t973, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t973=-3, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L858] 0 pthread_t t974; [L859] FCALL, FORK 0 pthread_create(&t974, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t973=-3, t974=-2, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L860] 0 pthread_t t975; [L861] FCALL, FORK 0 pthread_create(&t975, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t973=-3, t974=-2, t975=-1, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L862] 0 pthread_t t976; [L863] FCALL, FORK 0 pthread_create(&t976, ((void *)0), P3, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t973=-3, t974=-2, t975=-1, t976=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L812] 4 z$w_buff1 = z$w_buff0 [L813] 4 z$w_buff0 = 1 [L814] 4 z$w_buff1_used = z$w_buff0_used [L815] 4 z$w_buff0_used = (_Bool)1 [L816] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L816] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L817] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L818] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L819] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L820] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L821] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L822] 4 z$r_buff0_thd4 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L825] 4 a = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L828] 4 __unbuffered_p3_EAX = a VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L831] 4 __unbuffered_p3_EBX = b VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L754] 1 b = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L757] 1 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L769] 2 x = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L772] 2 __unbuffered_p1_EAX = y VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L762] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L777] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L784] 3 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L787] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L788] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L789] 3 z$flush_delayed = weak$$choice2 [L790] 3 z$mem_tmp = z [L791] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L792] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L793] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L794] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L795] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L796] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L797] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L798] 3 __unbuffered_p2_EAX = z [L799] 3 z = z$flush_delayed ? z$mem_tmp : z [L800] 3 z$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L805] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L834] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L835] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L836] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L837] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L838] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L841] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L865] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t973=-3, t974=-2, t975=-1, t976=0, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L867] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L867] RET 0 assume_abort_if_not(main$tmp_guard0) [L869] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L870] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L871] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L872] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L873] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t973=-3, t974=-2, t975=-1, t976=0, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L876] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t973=-3, t974=-2, t975=-1, t976=0, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L878] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L17] 0 __assert_fail ("0", "mix037.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 857]: 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. - UnprovableResult [Line: 863]: 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. - UnprovableResult [Line: 861]: 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. - UnprovableResult [Line: 859]: 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 9 procedures, 89 locations, 8 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: 16.4s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 621 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 593 mSDsluCounter, 199 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 179 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2202 IncrementalHoareTripleChecker+Invalid, 2230 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 20 mSDtfsCounter, 2202 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=292occurred in iteration=11, InterpolantAutomatonStates: 70, 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: 0.3s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 359 NumberOfCodeBlocks, 358 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 309 ConstructedInterpolants, 0 QuantifiedInterpolants, 1092 SizeOfPredicates, 39 NumberOfNonLiveVariables, 1296 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 03:21:39,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6586156-af5f-47a2-bf67-d2484c2893ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample