./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix054_pso.opt_rmo.opt_tso.oepc_tso.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_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/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_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix054_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/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_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/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 4b807ac1723767f46eb51e856f642cbeec29c757d6219d60986235d902b15355 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:33:00,530 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:33:00,664 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-27 23:33:00,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:33:00,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:33:00,731 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:33:00,732 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:33:00,733 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:33:00,734 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:33:00,734 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:33:00,734 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:33:00,734 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:33:00,734 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:33:00,735 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:33:00,735 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:33:00,735 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:33:00,735 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:33:00,735 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:33:00,735 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:33:00,735 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:33:00,736 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-27 23:33:00,736 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-27 23:33:00,736 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-27 23:33:00,736 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:33:00,736 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 23:33:00,736 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:33:00,736 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:33:00,736 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:33:00,737 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:33:00,737 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:33:00,739 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:33:00,740 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:33:00,740 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:33:00,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:33:00,740 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:33:00,740 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:33:00,741 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:33:00,741 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:33:00,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:33:00,741 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:33:00,741 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:33:00,741 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:33:00,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:33:00,742 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:33:00,742 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:33:00,742 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:33:00,742 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:33:00,743 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_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/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 -> 4b807ac1723767f46eb51e856f642cbeec29c757d6219d60986235d902b15355 [2024-11-27 23:33:01,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:33:01,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:33:01,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:33:01,158 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:33:01,159 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:33:01,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/mix054_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-27 23:33:05,004 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/data/d85c19e50/0412189381c547c3bc2fcfd74effe78d/FLAG5a81c5d51 [2024-11-27 23:33:05,484 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:33:05,489 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/sv-benchmarks/c/pthread-wmm/mix054_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-27 23:33:05,507 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/data/d85c19e50/0412189381c547c3bc2fcfd74effe78d/FLAG5a81c5d51 [2024-11-27 23:33:05,527 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/data/d85c19e50/0412189381c547c3bc2fcfd74effe78d [2024-11-27 23:33:05,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:33:05,532 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:33:05,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:33:05,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:33:05,540 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:33:05,541 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:33:05" (1/1) ... [2024-11-27 23:33:05,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67561137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:05, skipping insertion in model container [2024-11-27 23:33:05,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:33:05" (1/1) ... [2024-11-27 23:33:05,583 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:33:06,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:33:06,072 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:33:06,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:33:06,190 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:33:06,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:06 WrapperNode [2024-11-27 23:33:06,191 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:33:06,194 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:33:06,194 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:33:06,194 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:33:06,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:06" (1/1) ... [2024-11-27 23:33:06,237 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:06" (1/1) ... [2024-11-27 23:33:06,278 INFO L138 Inliner]: procedures = 174, calls = 34, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 126 [2024-11-27 23:33:06,279 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:33:06,280 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:33:06,280 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:33:06,280 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:33:06,292 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:06" (1/1) ... [2024-11-27 23:33:06,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:06" (1/1) ... [2024-11-27 23:33:06,296 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:06" (1/1) ... [2024-11-27 23:33:06,313 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]. [2024-11-27 23:33:06,314 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:06" (1/1) ... [2024-11-27 23:33:06,314 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:06" (1/1) ... [2024-11-27 23:33:06,323 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:06" (1/1) ... [2024-11-27 23:33:06,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:06" (1/1) ... [2024-11-27 23:33:06,327 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:06" (1/1) ... [2024-11-27 23:33:06,329 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:06" (1/1) ... [2024-11-27 23:33:06,330 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:06" (1/1) ... [2024-11-27 23:33:06,334 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:33:06,335 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:33:06,335 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:33:06,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:33:06,337 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:06" (1/1) ... [2024-11-27 23:33:06,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:33:06,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:06,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:33:06,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:33:06,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 23:33:06,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:33:06,425 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-27 23:33:06,425 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-27 23:33:06,426 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-27 23:33:06,426 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-27 23:33:06,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:33:06,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 23:33:06,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:33:06,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:33:06,429 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 23:33:06,635 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:33:06,637 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:33:07,041 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 23:33:07,041 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:33:07,387 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:33:07,387 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 23:33:07,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:33:07 BoogieIcfgContainer [2024-11-27 23:33:07,388 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:33:07,390 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:33:07,390 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:33:07,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:33:07,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:33:05" (1/3) ... [2024-11-27 23:33:07,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3954ee6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:33:07, skipping insertion in model container [2024-11-27 23:33:07,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:06" (2/3) ... [2024-11-27 23:33:07,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3954ee6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:33:07, skipping insertion in model container [2024-11-27 23:33:07,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:33:07" (3/3) ... [2024-11-27 23:33:07,400 INFO L128 eAbstractionObserver]: Analyzing ICFG mix054_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-27 23:33:07,420 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:33:07,423 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix054_pso.opt_rmo.opt_tso.oepc_tso.opt.i that has 3 procedures, 34 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-11-27 23:33:07,423 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 23:33:07,487 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 23:33:07,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 35 transitions, 78 flow [2024-11-27 23:33:07,587 INFO L124 PetriNetUnfolderBase]: 2/33 cut-off events. [2024-11-27 23:33:07,592 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:33:07,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 33 events. 2/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-11-27 23:33:07,598 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 35 transitions, 78 flow [2024-11-27 23:33:07,605 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 33 transitions, 72 flow [2024-11-27 23:33:07,620 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:33:07,643 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;@73c184e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:33:07,643 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-27 23:33:07,656 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:33:07,656 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-11-27 23:33:07,656 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:33:07,657 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:07,658 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-27 23:33:07,660 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-27 23:33:07,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:07,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1573353172, now seen corresponding path program 1 times [2024-11-27 23:33:07,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:07,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767427210] [2024-11-27 23:33:07,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:07,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:08,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:08,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:08,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767427210] [2024-11-27 23:33:08,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767427210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:08,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:08,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 23:33:08,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121688010] [2024-11-27 23:33:08,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:08,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:33:08,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:08,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:33:08,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:33:08,481 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-27 23:33:08,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-27 23:33:08,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:08,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-27 23:33:08,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:08,909 INFO L124 PetriNetUnfolderBase]: 146/337 cut-off events. [2024-11-27 23:33:08,913 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:33:08,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 337 events. 146/337 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1789 event pairs, 20 based on Foata normal form. 24/355 useless extension candidates. Maximal degree in co-relation 600. Up to 208 conditions per place. [2024-11-27 23:33:08,927 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 23 selfloop transitions, 2 changer transitions 2/39 dead transitions. [2024-11-27 23:33:08,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 39 transitions, 138 flow [2024-11-27 23:33:08,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:33:08,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:33:08,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2024-11-27 23:33:08,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7047619047619048 [2024-11-27 23:33:08,945 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 72 flow. Second operand 3 states and 74 transitions. [2024-11-27 23:33:08,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 39 transitions, 138 flow [2024-11-27 23:33:08,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 39 transitions, 136 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 23:33:08,955 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 64 flow [2024-11-27 23:33:08,958 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-11-27 23:33:08,963 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2024-11-27 23:33:08,963 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 64 flow [2024-11-27 23:33:08,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-27 23:33:08,964 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:08,964 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:08,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:33:08,964 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-27 23:33:08,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:08,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1269111514, now seen corresponding path program 1 times [2024-11-27 23:33:08,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:08,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444862465] [2024-11-27 23:33:08,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:08,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:09,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:09,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:09,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444862465] [2024-11-27 23:33:09,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444862465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:09,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:09,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 23:33:09,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659091497] [2024-11-27 23:33:09,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:09,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:33:09,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:09,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:33:09,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:33:09,203 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-27 23:33:09,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-27 23:33:09,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:09,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-27 23:33:09,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:09,384 INFO L124 PetriNetUnfolderBase]: 129/293 cut-off events. [2024-11-27 23:33:09,384 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-27 23:33:09,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 293 events. 129/293 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1581 event pairs, 129 based on Foata normal form. 12/293 useless extension candidates. Maximal degree in co-relation 551. Up to 232 conditions per place. [2024-11-27 23:33:09,388 INFO L140 encePairwiseOnDemand]: 33/35 looper letters, 14 selfloop transitions, 1 changer transitions 1/27 dead transitions. [2024-11-27 23:33:09,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 94 flow [2024-11-27 23:33:09,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:33:09,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:33:09,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-11-27 23:33:09,394 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2024-11-27 23:33:09,395 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 64 flow. Second operand 3 states and 56 transitions. [2024-11-27 23:33:09,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 94 flow [2024-11-27 23:33:09,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 27 transitions, 90 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 23:33:09,397 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 58 flow [2024-11-27 23:33:09,398 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2024-11-27 23:33:09,399 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, -4 predicate places. [2024-11-27 23:33:09,400 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 58 flow [2024-11-27 23:33:09,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-27 23:33:09,400 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:09,400 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:09,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:33:09,401 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-27 23:33:09,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:09,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1269112886, now seen corresponding path program 1 times [2024-11-27 23:33:09,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:09,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936817833] [2024-11-27 23:33:09,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:09,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:10,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:10,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:10,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936817833] [2024-11-27 23:33:10,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936817833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:10,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:10,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:33:10,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929700391] [2024-11-27 23:33:10,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:10,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:33:10,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:10,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:33:10,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:33:10,641 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-27 23:33:10,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 58 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2024-11-27 23:33:10,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:10,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-27 23:33:10,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:11,194 INFO L124 PetriNetUnfolderBase]: 232/491 cut-off events. [2024-11-27 23:33:11,195 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:33:11,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 491 events. 232/491 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2687 event pairs, 87 based on Foata normal form. 0/474 useless extension candidates. Maximal degree in co-relation 912. Up to 265 conditions per place. [2024-11-27 23:33:11,201 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 20 selfloop transitions, 3 changer transitions 28/60 dead transitions. [2024-11-27 23:33:11,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 60 transitions, 230 flow [2024-11-27 23:33:11,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:33:11,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-27 23:33:11,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 149 transitions. [2024-11-27 23:33:11,205 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5321428571428571 [2024-11-27 23:33:11,205 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 58 flow. Second operand 8 states and 149 transitions. [2024-11-27 23:33:11,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 60 transitions, 230 flow [2024-11-27 23:33:11,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 60 transitions, 229 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:33:11,208 INFO L231 Difference]: Finished difference. Result has 44 places, 27 transitions, 90 flow [2024-11-27 23:33:11,208 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=90, PETRI_PLACES=44, PETRI_TRANSITIONS=27} [2024-11-27 23:33:11,209 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 6 predicate places. [2024-11-27 23:33:11,210 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 27 transitions, 90 flow [2024-11-27 23:33:11,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2024-11-27 23:33:11,210 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:11,210 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:11,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:33:11,211 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-27 23:33:11,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:11,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1399698970, now seen corresponding path program 1 times [2024-11-27 23:33:11,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:11,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454020102] [2024-11-27 23:33:11,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:11,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:13,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:13,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:13,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454020102] [2024-11-27 23:33:13,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454020102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:13,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:13,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:33:13,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450717958] [2024-11-27 23:33:13,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:13,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:33:13,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:13,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:33:13,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:33:13,046 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 35 [2024-11-27 23:33:13,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 27 transitions, 90 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-27 23:33:13,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:13,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 35 [2024-11-27 23:33:13,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:13,829 INFO L124 PetriNetUnfolderBase]: 324/627 cut-off events. [2024-11-27 23:33:13,830 INFO L125 PetriNetUnfolderBase]: For 470/470 co-relation queries the response was YES. [2024-11-27 23:33:13,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1578 conditions, 627 events. 324/627 cut-off events. For 470/470 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3067 event pairs, 30 based on Foata normal form. 27/652 useless extension candidates. Maximal degree in co-relation 1566. Up to 349 conditions per place. [2024-11-27 23:33:13,837 INFO L140 encePairwiseOnDemand]: 26/35 looper letters, 32 selfloop transitions, 7 changer transitions 37/83 dead transitions. [2024-11-27 23:33:13,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 83 transitions, 414 flow [2024-11-27 23:33:13,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:33:13,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-27 23:33:13,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 189 transitions. [2024-11-27 23:33:13,840 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4909090909090909 [2024-11-27 23:33:13,840 INFO L175 Difference]: Start difference. First operand has 44 places, 27 transitions, 90 flow. Second operand 11 states and 189 transitions. [2024-11-27 23:33:13,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 83 transitions, 414 flow [2024-11-27 23:33:13,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 83 transitions, 395 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-11-27 23:33:13,846 INFO L231 Difference]: Finished difference. Result has 53 places, 30 transitions, 138 flow [2024-11-27 23:33:13,847 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=138, PETRI_PLACES=53, PETRI_TRANSITIONS=30} [2024-11-27 23:33:13,848 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2024-11-27 23:33:13,848 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 30 transitions, 138 flow [2024-11-27 23:33:13,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-27 23:33:13,848 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:13,849 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:13,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:33:13,849 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-27 23:33:13,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:13,850 INFO L85 PathProgramCache]: Analyzing trace with hash 8564440, now seen corresponding path program 2 times [2024-11-27 23:33:13,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:13,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971069572] [2024-11-27 23:33:13,851 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:33:13,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:13,896 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:33:13,896 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:14,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:14,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:14,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971069572] [2024-11-27 23:33:14,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971069572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:14,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:14,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:33:14,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272312966] [2024-11-27 23:33:14,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:14,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:33:14,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:14,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:33:14,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:33:14,849 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 35 [2024-11-27 23:33:14,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 30 transitions, 138 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-27 23:33:14,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:14,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 35 [2024-11-27 23:33:14,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:15,427 INFO L124 PetriNetUnfolderBase]: 300/588 cut-off events. [2024-11-27 23:33:15,427 INFO L125 PetriNetUnfolderBase]: For 1292/1292 co-relation queries the response was YES. [2024-11-27 23:33:15,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1951 conditions, 588 events. 300/588 cut-off events. For 1292/1292 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2819 event pairs, 36 based on Foata normal form. 23/609 useless extension candidates. Maximal degree in co-relation 1932. Up to 328 conditions per place. [2024-11-27 23:33:15,434 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 33 selfloop transitions, 8 changer transitions 27/75 dead transitions. [2024-11-27 23:33:15,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 75 transitions, 488 flow [2024-11-27 23:33:15,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:33:15,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-27 23:33:15,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 158 transitions. [2024-11-27 23:33:15,437 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5015873015873016 [2024-11-27 23:33:15,437 INFO L175 Difference]: Start difference. First operand has 53 places, 30 transitions, 138 flow. Second operand 9 states and 158 transitions. [2024-11-27 23:33:15,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 75 transitions, 488 flow [2024-11-27 23:33:15,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 75 transitions, 461 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-11-27 23:33:15,445 INFO L231 Difference]: Finished difference. Result has 54 places, 32 transitions, 179 flow [2024-11-27 23:33:15,445 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=179, PETRI_PLACES=54, PETRI_TRANSITIONS=32} [2024-11-27 23:33:15,446 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 16 predicate places. [2024-11-27 23:33:15,446 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 32 transitions, 179 flow [2024-11-27 23:33:15,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-27 23:33:15,446 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:15,446 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:15,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:33:15,446 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-27 23:33:15,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:15,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1098785011, now seen corresponding path program 1 times [2024-11-27 23:33:15,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:15,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967962312] [2024-11-27 23:33:15,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:15,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:15,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:15,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:15,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967962312] [2024-11-27 23:33:15,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967962312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:15,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:15,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:33:15,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376800444] [2024-11-27 23:33:15,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:15,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:33:15,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:15,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:33:15,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:33:15,736 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-11-27 23:33:15,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 32 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-11-27 23:33:15,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:15,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-11-27 23:33:15,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:15,999 INFO L124 PetriNetUnfolderBase]: 210/436 cut-off events. [2024-11-27 23:33:15,999 INFO L125 PetriNetUnfolderBase]: For 1304/1304 co-relation queries the response was YES. [2024-11-27 23:33:16,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1492 conditions, 436 events. 210/436 cut-off events. For 1304/1304 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1932 event pairs, 27 based on Foata normal form. 27/455 useless extension candidates. Maximal degree in co-relation 1472. Up to 220 conditions per place. [2024-11-27 23:33:16,005 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 37 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2024-11-27 23:33:16,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 49 transitions, 360 flow [2024-11-27 23:33:16,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:33:16,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:33:16,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 80 transitions. [2024-11-27 23:33:16,008 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-11-27 23:33:16,008 INFO L175 Difference]: Start difference. First operand has 54 places, 32 transitions, 179 flow. Second operand 4 states and 80 transitions. [2024-11-27 23:33:16,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 49 transitions, 360 flow [2024-11-27 23:33:16,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 49 transitions, 311 flow, removed 18 selfloop flow, removed 7 redundant places. [2024-11-27 23:33:16,014 INFO L231 Difference]: Finished difference. Result has 48 places, 34 transitions, 169 flow [2024-11-27 23:33:16,014 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=169, PETRI_PLACES=48, PETRI_TRANSITIONS=34} [2024-11-27 23:33:16,015 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 10 predicate places. [2024-11-27 23:33:16,015 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 34 transitions, 169 flow [2024-11-27 23:33:16,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-11-27 23:33:16,015 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:16,016 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:16,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:33:16,016 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-27 23:33:16,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:16,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1156504817, now seen corresponding path program 1 times [2024-11-27 23:33:16,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:16,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589813101] [2024-11-27 23:33:16,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:16,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:16,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:16,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:16,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589813101] [2024-11-27 23:33:16,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589813101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:16,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:16,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:33:16,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495243749] [2024-11-27 23:33:16,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:16,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:33:16,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:16,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:33:16,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:33:16,322 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-11-27 23:33:16,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 34 transitions, 169 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-27 23:33:16,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:16,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-11-27 23:33:16,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:16,526 INFO L124 PetriNetUnfolderBase]: 126/274 cut-off events. [2024-11-27 23:33:16,526 INFO L125 PetriNetUnfolderBase]: For 498/498 co-relation queries the response was YES. [2024-11-27 23:33:16,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 274 events. 126/274 cut-off events. For 498/498 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1035 event pairs, 28 based on Foata normal form. 18/284 useless extension candidates. Maximal degree in co-relation 894. Up to 117 conditions per place. [2024-11-27 23:33:16,529 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 31 selfloop transitions, 6 changer transitions 0/45 dead transitions. [2024-11-27 23:33:16,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 45 transitions, 290 flow [2024-11-27 23:33:16,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:33:16,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 23:33:16,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 90 transitions. [2024-11-27 23:33:16,531 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5142857142857142 [2024-11-27 23:33:16,531 INFO L175 Difference]: Start difference. First operand has 48 places, 34 transitions, 169 flow. Second operand 5 states and 90 transitions. [2024-11-27 23:33:16,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 45 transitions, 290 flow [2024-11-27 23:33:16,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 45 transitions, 226 flow, removed 23 selfloop flow, removed 8 redundant places. [2024-11-27 23:33:16,534 INFO L231 Difference]: Finished difference. Result has 46 places, 33 transitions, 142 flow [2024-11-27 23:33:16,534 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=142, PETRI_PLACES=46, PETRI_TRANSITIONS=33} [2024-11-27 23:33:16,535 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 8 predicate places. [2024-11-27 23:33:16,535 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 33 transitions, 142 flow [2024-11-27 23:33:16,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-27 23:33:16,536 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:16,536 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] [2024-11-27 23:33:16,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:33:16,537 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-27 23:33:16,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:16,537 INFO L85 PathProgramCache]: Analyzing trace with hash -838954024, now seen corresponding path program 1 times [2024-11-27 23:33:16,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:16,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268640262] [2024-11-27 23:33:16,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:16,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:16,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:16,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:16,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268640262] [2024-11-27 23:33:16,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268640262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:16,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:16,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:33:16,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782414123] [2024-11-27 23:33:16,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:16,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:33:16,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:16,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:33:16,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:33:16,877 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-11-27 23:33:16,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 33 transitions, 142 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 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) [2024-11-27 23:33:16,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:16,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-11-27 23:33:16,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:17,208 INFO L124 PetriNetUnfolderBase]: 141/358 cut-off events. [2024-11-27 23:33:17,208 INFO L125 PetriNetUnfolderBase]: For 322/360 co-relation queries the response was YES. [2024-11-27 23:33:17,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 937 conditions, 358 events. 141/358 cut-off events. For 322/360 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1735 event pairs, 35 based on Foata normal form. 10/341 useless extension candidates. Maximal degree in co-relation 922. Up to 142 conditions per place. [2024-11-27 23:33:17,212 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 21 selfloop transitions, 1 changer transitions 21/55 dead transitions. [2024-11-27 23:33:17,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 55 transitions, 294 flow [2024-11-27 23:33:17,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:33:17,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:33:17,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 104 transitions. [2024-11-27 23:33:17,214 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49523809523809526 [2024-11-27 23:33:17,214 INFO L175 Difference]: Start difference. First operand has 46 places, 33 transitions, 142 flow. Second operand 6 states and 104 transitions. [2024-11-27 23:33:17,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 55 transitions, 294 flow [2024-11-27 23:33:17,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 55 transitions, 285 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-27 23:33:17,219 INFO L231 Difference]: Finished difference. Result has 53 places, 31 transitions, 134 flow [2024-11-27 23:33:17,220 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=134, PETRI_PLACES=53, PETRI_TRANSITIONS=31} [2024-11-27 23:33:17,225 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2024-11-27 23:33:17,225 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 31 transitions, 134 flow [2024-11-27 23:33:17,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 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) [2024-11-27 23:33:17,225 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:17,225 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] [2024-11-27 23:33:17,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:33:17,226 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-27 23:33:17,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:17,227 INFO L85 PathProgramCache]: Analyzing trace with hash -73551806, now seen corresponding path program 2 times [2024-11-27 23:33:17,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:17,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99700805] [2024-11-27 23:33:17,227 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:33:17,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:17,313 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:33:17,314 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:18,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:18,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:18,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99700805] [2024-11-27 23:33:18,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99700805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:18,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:18,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:33:18,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145483870] [2024-11-27 23:33:18,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:18,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:33:18,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:18,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:33:18,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:33:18,690 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-27 23:33:18,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 31 transitions, 134 flow. Second operand has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 states have internal predecessors, (122), 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) [2024-11-27 23:33:18,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:18,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-27 23:33:18,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:19,117 INFO L124 PetriNetUnfolderBase]: 89/253 cut-off events. [2024-11-27 23:33:19,117 INFO L125 PetriNetUnfolderBase]: For 150/170 co-relation queries the response was YES. [2024-11-27 23:33:19,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 674 conditions, 253 events. 89/253 cut-off events. For 150/170 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1114 event pairs, 31 based on Foata normal form. 7/242 useless extension candidates. Maximal degree in co-relation 656. Up to 87 conditions per place. [2024-11-27 23:33:19,119 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 17 selfloop transitions, 4 changer transitions 11/45 dead transitions. [2024-11-27 23:33:19,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 45 transitions, 242 flow [2024-11-27 23:33:19,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:33:19,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-27 23:33:19,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 115 transitions. [2024-11-27 23:33:19,121 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46938775510204084 [2024-11-27 23:33:19,121 INFO L175 Difference]: Start difference. First operand has 53 places, 31 transitions, 134 flow. Second operand 7 states and 115 transitions. [2024-11-27 23:33:19,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 45 transitions, 242 flow [2024-11-27 23:33:19,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 45 transitions, 229 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-27 23:33:19,125 INFO L231 Difference]: Finished difference. Result has 54 places, 31 transitions, 146 flow [2024-11-27 23:33:19,125 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=146, PETRI_PLACES=54, PETRI_TRANSITIONS=31} [2024-11-27 23:33:19,126 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 16 predicate places. [2024-11-27 23:33:19,126 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 31 transitions, 146 flow [2024-11-27 23:33:19,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 states have internal predecessors, (122), 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) [2024-11-27 23:33:19,126 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:19,126 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] [2024-11-27 23:33:19,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:33:19,127 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-27 23:33:19,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:19,128 INFO L85 PathProgramCache]: Analyzing trace with hash -2024233998, now seen corresponding path program 3 times [2024-11-27 23:33:19,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:19,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978570916] [2024-11-27 23:33:19,128 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:33:19,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:19,203 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-27 23:33:19,204 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-27 23:33:19,204 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:33:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:33:19,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 23:33:19,321 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 23:33:19,323 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-27 23:33:19,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-27 23:33:19,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2024-11-27 23:33:19,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-27 23:33:19,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-27 23:33:19,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2024-11-27 23:33:19,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:33:19,327 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1] [2024-11-27 23:33:19,392 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 23:33:19,393 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:33:19,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:33:19 BasicIcfg [2024-11-27 23:33:19,400 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:33:19,400 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:33:19,401 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:33:19,401 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:33:19,402 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:33:07" (3/4) ... [2024-11-27 23:33:19,404 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 23:33:19,405 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:33:19,407 INFO L158 Benchmark]: Toolchain (without parser) took 13874.64ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 103.5MB in the beginning and 172.1MB in the end (delta: -68.6MB). Peak memory consumption was 216.2MB. Max. memory is 16.1GB. [2024-11-27 23:33:19,407 INFO L158 Benchmark]: CDTParser took 1.63ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:33:19,407 INFO L158 Benchmark]: CACSL2BoogieTranslator took 658.98ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 80.8MB in the end (delta: 22.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 23:33:19,408 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.30ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 78.2MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:33:19,408 INFO L158 Benchmark]: Boogie Preprocessor took 54.29ms. Allocated memory is still 142.6MB. Free memory was 78.2MB in the beginning and 75.6MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:33:19,409 INFO L158 Benchmark]: RCFGBuilder took 1052.87ms. Allocated memory is still 142.6MB. Free memory was 75.3MB in the beginning and 100.4MB in the end (delta: -25.1MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. [2024-11-27 23:33:19,409 INFO L158 Benchmark]: TraceAbstraction took 12009.66ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 99.7MB in the beginning and 172.2MB in the end (delta: -72.5MB). Peak memory consumption was 210.2MB. Max. memory is 16.1GB. [2024-11-27 23:33:19,409 INFO L158 Benchmark]: Witness Printer took 5.10ms. Allocated memory is still 427.8MB. Free memory was 172.2MB in the beginning and 172.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:33:19,412 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.63ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 658.98ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 80.8MB in the end (delta: 22.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.30ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 78.2MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.29ms. Allocated memory is still 142.6MB. Free memory was 78.2MB in the beginning and 75.6MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1052.87ms. Allocated memory is still 142.6MB. Free memory was 75.3MB in the beginning and 100.4MB in the end (delta: -25.1MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. * TraceAbstraction took 12009.66ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 99.7MB in the beginning and 172.2MB in the end (delta: -72.5MB). Peak memory consumption was 210.2MB. Max. memory is 16.1GB. * Witness Printer took 5.10ms. Allocated memory is still 427.8MB. Free memory was 172.2MB in the beginning and 172.1MB in the end (delta: 84.0kB). 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: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L711] 0 _Bool main$tmp_guard0; [L712] 0 _Bool main$tmp_guard1; [L714] 0 int x = 0; [L715] 0 _Bool x$flush_delayed; [L716] 0 int x$mem_tmp; [L717] 0 _Bool x$r_buff0_thd0; [L718] 0 _Bool x$r_buff0_thd1; [L719] 0 _Bool x$r_buff0_thd2; [L720] 0 _Bool x$r_buff1_thd0; [L721] 0 _Bool x$r_buff1_thd1; [L722] 0 _Bool x$r_buff1_thd2; [L723] 0 _Bool x$read_delayed; [L724] 0 int *x$read_delayed_var; [L725] 0 int x$w_buff0; [L726] 0 _Bool x$w_buff0_used; [L727] 0 int x$w_buff1; [L728] 0 _Bool x$w_buff1_used; [L730] 0 int y = 0; [L731] 0 _Bool weak$$choice0; [L732] 0 _Bool weak$$choice2; [L792] 0 pthread_t t1447; [L793] FCALL, FORK 0 pthread_create(&t1447, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1447=-1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L794] 0 pthread_t t1448; [L795] FCALL, FORK 0 pthread_create(&t1448, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1447=-1, t1448=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L756] 2 x$w_buff1 = x$w_buff0 [L757] 2 x$w_buff0 = 2 [L758] 2 x$w_buff1_used = x$w_buff0_used [L759] 2 x$w_buff0_used = (_Bool)1 [L760] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L760] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L761] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L762] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L763] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L764] 2 x$r_buff0_thd2 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L767] 2 __unbuffered_p1_EAX = y VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L736] 1 y = 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L739] 1 x = 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=1] [L770] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L771] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L772] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L773] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L774] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1] [L777] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1] [L742] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L743] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L744] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L745] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L746] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [\old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1] [L749] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1] [L797] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1447=-1, t1448=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1] [L799] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L799] RET 0 assume_abort_if_not(main$tmp_guard0) [L801] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L802] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L803] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L804] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L805] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1447=-1, t1448=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1] [L808] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L809] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L810] 0 x$flush_delayed = weak$$choice2 [L811] 0 x$mem_tmp = x [L812] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L813] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L814] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L815] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L816] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L817] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L818] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L819] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0) [L820] 0 x = x$flush_delayed ? x$mem_tmp : x [L821] 0 x$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1447=-1, t1448=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1] [L823] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1] [L17] 0 __assert_fail ("0", "mix054_pso.opt_rmo.opt_tso.oepc_tso.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=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: 790]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 793]: 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: 795]: 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 5 procedures, 51 locations, 6 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: 11.8s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 281 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 251 mSDsluCounter, 188 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 163 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 868 IncrementalHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 25 mSDtfsCounter, 868 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=5, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 166 NumberOfCodeBlocks, 166 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 984 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 [2024-11-27 23:33:19,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/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_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix054_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/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_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/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 4b807ac1723767f46eb51e856f642cbeec29c757d6219d60986235d902b15355 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:33:22,951 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:33:23,112 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-27 23:33:23,120 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:33:23,120 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:33:23,152 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:33:23,153 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:33:23,153 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:33:23,154 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:33:23,154 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:33:23,154 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:33:23,154 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:33:23,155 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:33:23,155 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:33:23,155 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:33:23,156 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:33:23,156 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:33:23,156 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:33:23,156 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:33:23,156 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:33:23,157 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-27 23:33:23,157 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-27 23:33:23,157 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-27 23:33:23,157 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:33:23,157 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 23:33:23,157 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 23:33:23,158 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 23:33:23,158 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:33:23,158 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:33:23,158 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:33:23,158 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:33:23,158 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:33:23,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:33:23,159 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:33:23,159 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:33:23,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:33:23,159 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:33:23,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:33:23,160 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:33:23,160 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:33:23,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:33:23,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:33:23,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:33:23,160 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 23:33:23,161 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 23:33:23,161 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:33:23,161 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:33:23,161 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:33:23,161 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:33:23,161 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_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/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 -> 4b807ac1723767f46eb51e856f642cbeec29c757d6219d60986235d902b15355 [2024-11-27 23:33:23,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:33:23,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:33:23,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:33:23,624 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:33:23,624 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:33:23,628 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/mix054_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-27 23:33:27,402 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/data/30e93adc4/ed3f3c4979b34e039bfa80e4f79ce0fb/FLAG9870ecfde [2024-11-27 23:33:27,840 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:33:27,844 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/sv-benchmarks/c/pthread-wmm/mix054_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-27 23:33:27,874 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/data/30e93adc4/ed3f3c4979b34e039bfa80e4f79ce0fb/FLAG9870ecfde [2024-11-27 23:33:27,904 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/data/30e93adc4/ed3f3c4979b34e039bfa80e4f79ce0fb [2024-11-27 23:33:27,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:33:27,910 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:33:27,913 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:33:27,916 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:33:27,926 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:33:27,927 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:33:27" (1/1) ... [2024-11-27 23:33:27,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f01a3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:27, skipping insertion in model container [2024-11-27 23:33:27,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:33:27" (1/1) ... [2024-11-27 23:33:27,995 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:33:28,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:33:28,661 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:33:28,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:33:28,851 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:33:28,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:28 WrapperNode [2024-11-27 23:33:28,853 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:33:28,855 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:33:28,856 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:33:28,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:33:28,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:28" (1/1) ... [2024-11-27 23:33:28,902 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:28" (1/1) ... [2024-11-27 23:33:28,954 INFO L138 Inliner]: procedures = 175, calls = 34, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 127 [2024-11-27 23:33:28,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:33:28,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:33:28,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:33:28,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:33:28,971 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:28" (1/1) ... [2024-11-27 23:33:28,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:28" (1/1) ... [2024-11-27 23:33:28,979 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:28" (1/1) ... [2024-11-27 23:33:29,014 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]. [2024-11-27 23:33:29,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:28" (1/1) ... [2024-11-27 23:33:29,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:28" (1/1) ... [2024-11-27 23:33:29,036 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:28" (1/1) ... [2024-11-27 23:33:29,037 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:28" (1/1) ... [2024-11-27 23:33:29,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:28" (1/1) ... [2024-11-27 23:33:29,046 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:28" (1/1) ... [2024-11-27 23:33:29,051 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:28" (1/1) ... [2024-11-27 23:33:29,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:33:29,060 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:33:29,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:33:29,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:33:29,062 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:28" (1/1) ... [2024-11-27 23:33:29,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:33:29,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:29,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:33:29,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:33:29,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 23:33:29,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:33:29,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 23:33:29,162 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-27 23:33:29,162 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-27 23:33:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-27 23:33:29,163 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-27 23:33:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 23:33:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:33:29,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:33:29,165 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 23:33:29,336 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:33:29,338 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:33:29,818 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 23:33:29,819 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:33:30,187 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:33:30,188 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 23:33:30,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:33:30 BoogieIcfgContainer [2024-11-27 23:33:30,189 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:33:30,194 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:33:30,195 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:33:30,204 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:33:30,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:33:27" (1/3) ... [2024-11-27 23:33:30,208 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6697fb78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:33:30, skipping insertion in model container [2024-11-27 23:33:30,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:28" (2/3) ... [2024-11-27 23:33:30,208 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6697fb78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:33:30, skipping insertion in model container [2024-11-27 23:33:30,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:33:30" (3/3) ... [2024-11-27 23:33:30,212 INFO L128 eAbstractionObserver]: Analyzing ICFG mix054_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-27 23:33:30,231 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:33:30,233 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix054_pso.opt_rmo.opt_tso.oepc_tso.opt.i that has 3 procedures, 34 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-11-27 23:33:30,233 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 23:33:30,309 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 23:33:30,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 35 transitions, 78 flow [2024-11-27 23:33:30,439 INFO L124 PetriNetUnfolderBase]: 2/33 cut-off events. [2024-11-27 23:33:30,444 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:33:30,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 33 events. 2/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-11-27 23:33:30,449 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 35 transitions, 78 flow [2024-11-27 23:33:30,454 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 33 transitions, 72 flow [2024-11-27 23:33:30,473 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:33:30,496 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;@7f2d61f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:33:30,496 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-27 23:33:30,506 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:33:30,507 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-11-27 23:33:30,507 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:33:30,507 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:30,508 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-27 23:33:30,509 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-27 23:33:30,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:30,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1632520084, now seen corresponding path program 1 times [2024-11-27 23:33:30,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:33:30,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1907552593] [2024-11-27 23:33:30,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:30,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:30,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:30,537 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:30,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:33:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:30,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:33:30,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:30,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:30,758 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:33:30,758 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:33:30,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907552593] [2024-11-27 23:33:30,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907552593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:30,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:30,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 23:33:30,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002892888] [2024-11-27 23:33:30,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:30,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:33:30,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:33:30,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:33:30,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:33:30,820 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-27 23:33:30,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-27 23:33:30,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:30,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-27 23:33:30,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:31,173 INFO L124 PetriNetUnfolderBase]: 146/337 cut-off events. [2024-11-27 23:33:31,174 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:33:31,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 337 events. 146/337 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1789 event pairs, 20 based on Foata normal form. 24/355 useless extension candidates. Maximal degree in co-relation 600. Up to 208 conditions per place. [2024-11-27 23:33:31,184 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 23 selfloop transitions, 2 changer transitions 2/39 dead transitions. [2024-11-27 23:33:31,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 39 transitions, 138 flow [2024-11-27 23:33:31,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:33:31,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:33:31,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2024-11-27 23:33:31,205 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7047619047619048 [2024-11-27 23:33:31,207 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 72 flow. Second operand 3 states and 74 transitions. [2024-11-27 23:33:31,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 39 transitions, 138 flow [2024-11-27 23:33:31,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 39 transitions, 136 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 23:33:31,218 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 64 flow [2024-11-27 23:33:31,222 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-11-27 23:33:31,229 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2024-11-27 23:33:31,232 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 64 flow [2024-11-27 23:33:31,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-27 23:33:31,233 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:31,233 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:31,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:33:31,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:31,434 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-27 23:33:31,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:31,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1341572772, now seen corresponding path program 1 times [2024-11-27 23:33:31,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:33:31,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1400954834] [2024-11-27 23:33:31,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:31,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:31,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:31,443 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:31,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:33:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:31,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 23:33:31,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:31,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:31,651 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:33:31,651 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:33:31,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400954834] [2024-11-27 23:33:31,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400954834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:31,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:31,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 23:33:31,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733677322] [2024-11-27 23:33:31,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:31,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:33:31,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:33:31,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:33:31,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:33:31,660 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-27 23:33:31,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-27 23:33:31,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:31,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-27 23:33:31,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:31,846 INFO L124 PetriNetUnfolderBase]: 129/293 cut-off events. [2024-11-27 23:33:31,846 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-27 23:33:31,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 293 events. 129/293 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1594 event pairs, 129 based on Foata normal form. 12/293 useless extension candidates. Maximal degree in co-relation 551. Up to 232 conditions per place. [2024-11-27 23:33:31,850 INFO L140 encePairwiseOnDemand]: 33/35 looper letters, 14 selfloop transitions, 1 changer transitions 1/27 dead transitions. [2024-11-27 23:33:31,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 94 flow [2024-11-27 23:33:31,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:33:31,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:33:31,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-11-27 23:33:31,853 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2024-11-27 23:33:31,853 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 64 flow. Second operand 3 states and 56 transitions. [2024-11-27 23:33:31,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 94 flow [2024-11-27 23:33:31,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 27 transitions, 90 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 23:33:31,856 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 58 flow [2024-11-27 23:33:31,856 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2024-11-27 23:33:31,857 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, -4 predicate places. [2024-11-27 23:33:31,857 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 58 flow [2024-11-27 23:33:31,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-27 23:33:31,858 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:31,858 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:31,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:33:32,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:32,063 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-27 23:33:32,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:32,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1341571400, now seen corresponding path program 1 times [2024-11-27 23:33:32,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:33:32,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [61779266] [2024-11-27 23:33:32,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:32,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:32,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:32,072 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:32,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:33:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:32,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:33:32,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:32,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:32,287 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:33:32,288 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:33:32,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61779266] [2024-11-27 23:33:32,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61779266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:32,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:32,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:33:32,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191947172] [2024-11-27 23:33:32,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:32,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:33:32,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:33:32,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:33:32,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:33:32,308 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-11-27 23:33:32,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2024-11-27 23:33:32,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:32,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-11-27 23:33:32,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:32,591 INFO L124 PetriNetUnfolderBase]: 180/382 cut-off events. [2024-11-27 23:33:32,591 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:33:32,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 729 conditions, 382 events. 180/382 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1832 event pairs, 24 based on Foata normal form. 20/396 useless extension candidates. Maximal degree in co-relation 723. Up to 199 conditions per place. [2024-11-27 23:33:32,600 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 29 selfloop transitions, 4 changer transitions 1/42 dead transitions. [2024-11-27 23:33:32,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 42 transitions, 160 flow [2024-11-27 23:33:32,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:33:32,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:33:32,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 80 transitions. [2024-11-27 23:33:32,604 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-11-27 23:33:32,604 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 58 flow. Second operand 4 states and 80 transitions. [2024-11-27 23:33:32,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 42 transitions, 160 flow [2024-11-27 23:33:32,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 42 transitions, 159 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:33:32,610 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 83 flow [2024-11-27 23:33:32,610 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=83, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2024-11-27 23:33:32,611 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2024-11-27 23:33:32,612 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 83 flow [2024-11-27 23:33:32,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2024-11-27 23:33:32,613 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:32,613 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:32,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:33:32,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:32,818 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-27 23:33:32,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:32,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1603347063, now seen corresponding path program 1 times [2024-11-27 23:33:32,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:33:32,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1391585706] [2024-11-27 23:33:32,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:32,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:32,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:32,823 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:32,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:33:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:32,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:33:32,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:33,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:33,021 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:33:33,021 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:33:33,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391585706] [2024-11-27 23:33:33,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391585706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:33,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:33,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:33:33,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088868917] [2024-11-27 23:33:33,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:33,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:33:33,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:33:33,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:33:33,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:33:33,029 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-11-27 23:33:33,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 83 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-27 23:33:33,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:33,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-11-27 23:33:33,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:33,247 INFO L124 PetriNetUnfolderBase]: 88/194 cut-off events. [2024-11-27 23:33:33,248 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2024-11-27 23:33:33,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 194 events. 88/194 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 656 event pairs, 16 based on Foata normal form. 14/202 useless extension candidates. Maximal degree in co-relation 449. Up to 71 conditions per place. [2024-11-27 23:33:33,251 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 25 selfloop transitions, 6 changer transitions 1/40 dead transitions. [2024-11-27 23:33:33,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 40 transitions, 176 flow [2024-11-27 23:33:33,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:33:33,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 23:33:33,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2024-11-27 23:33:33,253 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5085714285714286 [2024-11-27 23:33:33,253 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 83 flow. Second operand 5 states and 89 transitions. [2024-11-27 23:33:33,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 40 transitions, 176 flow [2024-11-27 23:33:33,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 40 transitions, 167 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-27 23:33:33,256 INFO L231 Difference]: Finished difference. Result has 41 places, 28 transitions, 99 flow [2024-11-27 23:33:33,257 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=99, PETRI_PLACES=41, PETRI_TRANSITIONS=28} [2024-11-27 23:33:33,258 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2024-11-27 23:33:33,258 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 28 transitions, 99 flow [2024-11-27 23:33:33,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-27 23:33:33,258 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:33,259 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] [2024-11-27 23:33:33,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 23:33:33,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:33,461 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-27 23:33:33,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:33,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1129752294, now seen corresponding path program 1 times [2024-11-27 23:33:33,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:33:33,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [675477041] [2024-11-27 23:33:33,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:33,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:33,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:33,466 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:33,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:33:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:33,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 23:33:33,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:34,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:34,293 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:33:34,293 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:33:34,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675477041] [2024-11-27 23:33:34,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675477041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:34,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:34,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:33:34,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934124567] [2024-11-27 23:33:34,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:34,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:33:34,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:33:34,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:33:34,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:33:34,327 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 35 [2024-11-27 23:33:34,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 28 transitions, 99 flow. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 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) [2024-11-27 23:33:34,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:34,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 35 [2024-11-27 23:33:34,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:34,731 INFO L124 PetriNetUnfolderBase]: 153/328 cut-off events. [2024-11-27 23:33:34,731 INFO L125 PetriNetUnfolderBase]: For 176/176 co-relation queries the response was YES. [2024-11-27 23:33:34,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 809 conditions, 328 events. 153/328 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1203 event pairs, 35 based on Foata normal form. 4/331 useless extension candidates. Maximal degree in co-relation 798. Up to 139 conditions per place. [2024-11-27 23:33:34,734 INFO L140 encePairwiseOnDemand]: 26/35 looper letters, 31 selfloop transitions, 5 changer transitions 24/66 dead transitions. [2024-11-27 23:33:34,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 66 transitions, 339 flow [2024-11-27 23:33:34,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:33:34,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-27 23:33:34,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 142 transitions. [2024-11-27 23:33:34,737 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4507936507936508 [2024-11-27 23:33:34,737 INFO L175 Difference]: Start difference. First operand has 41 places, 28 transitions, 99 flow. Second operand 9 states and 142 transitions. [2024-11-27 23:33:34,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 66 transitions, 339 flow [2024-11-27 23:33:34,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 66 transitions, 282 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-11-27 23:33:34,742 INFO L231 Difference]: Finished difference. Result has 49 places, 30 transitions, 105 flow [2024-11-27 23:33:34,742 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=105, PETRI_PLACES=49, PETRI_TRANSITIONS=30} [2024-11-27 23:33:34,743 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 11 predicate places. [2024-11-27 23:33:34,744 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 30 transitions, 105 flow [2024-11-27 23:33:34,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 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) [2024-11-27 23:33:34,744 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:34,744 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] [2024-11-27 23:33:34,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 23:33:34,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:34,949 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-27 23:33:34,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:34,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1736565952, now seen corresponding path program 2 times [2024-11-27 23:33:34,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:33:34,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [667455989] [2024-11-27 23:33:34,951 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:33:34,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:34,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:34,954 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:34,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:33:35,092 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:33:35,092 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:35,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 23:33:35,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:35,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:33:35,553 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:33:35,553 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:33:35,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667455989] [2024-11-27 23:33:35,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667455989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:35,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:35,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:33:35,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260829038] [2024-11-27 23:33:35,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:35,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:33:35,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:33:35,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:33:35,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:33:35,588 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-27 23:33:35,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 30 transitions, 105 flow. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 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) [2024-11-27 23:33:35,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:33:35,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-27 23:33:35,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:33:35,946 INFO L124 PetriNetUnfolderBase]: 105/253 cut-off events. [2024-11-27 23:33:35,947 INFO L125 PetriNetUnfolderBase]: For 36/38 co-relation queries the response was YES. [2024-11-27 23:33:35,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 253 events. 105/253 cut-off events. For 36/38 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 958 event pairs, 27 based on Foata normal form. 4/243 useless extension candidates. Maximal degree in co-relation 554. Up to 94 conditions per place. [2024-11-27 23:33:35,949 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 20 selfloop transitions, 3 changer transitions 15/49 dead transitions. [2024-11-27 23:33:35,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 49 transitions, 224 flow [2024-11-27 23:33:35,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:33:35,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-27 23:33:35,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 121 transitions. [2024-11-27 23:33:35,951 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49387755102040815 [2024-11-27 23:33:35,951 INFO L175 Difference]: Start difference. First operand has 49 places, 30 transitions, 105 flow. Second operand 7 states and 121 transitions. [2024-11-27 23:33:35,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 49 transitions, 224 flow [2024-11-27 23:33:35,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 49 transitions, 202 flow, removed 7 selfloop flow, removed 6 redundant places. [2024-11-27 23:33:35,954 INFO L231 Difference]: Finished difference. Result has 48 places, 28 transitions, 96 flow [2024-11-27 23:33:35,955 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=96, PETRI_PLACES=48, PETRI_TRANSITIONS=28} [2024-11-27 23:33:35,955 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 10 predicate places. [2024-11-27 23:33:35,956 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 28 transitions, 96 flow [2024-11-27 23:33:35,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 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) [2024-11-27 23:33:35,956 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:33:35,956 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] [2024-11-27 23:33:35,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 23:33:36,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:36,157 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-27 23:33:36,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:36,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1557008848, now seen corresponding path program 3 times [2024-11-27 23:33:36,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:33:36,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [671276742] [2024-11-27 23:33:36,159 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:33:36,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:36,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:36,161 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:36,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 23:33:36,274 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-27 23:33:36,275 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-27 23:33:36,275 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:33:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:33:36,401 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-27 23:33:36,404 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 23:33:36,405 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-27 23:33:36,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-27 23:33:36,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2024-11-27 23:33:36,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-27 23:33:36,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-27 23:33:36,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2024-11-27 23:33:36,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 23:33:36,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:36,613 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2024-11-27 23:33:36,723 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 23:33:36,725 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:33:36,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:33:36 BasicIcfg [2024-11-27 23:33:36,739 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:33:36,740 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:33:36,740 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:33:36,740 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:33:36,741 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:33:30" (3/4) ... [2024-11-27 23:33:36,747 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 23:33:36,748 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:33:36,749 INFO L158 Benchmark]: Toolchain (without parser) took 8839.47ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 90.4MB in the beginning and 190.7MB in the end (delta: -100.4MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2024-11-27 23:33:36,751 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 117.4MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:33:36,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 941.23ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 67.5MB in the end (delta: 22.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 23:33:36,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.38ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 65.2MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:33:36,753 INFO L158 Benchmark]: Boogie Preprocessor took 99.94ms. Allocated memory is still 117.4MB. Free memory was 65.2MB in the beginning and 62.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:33:36,755 INFO L158 Benchmark]: RCFGBuilder took 1129.30ms. Allocated memory is still 117.4MB. Free memory was 62.5MB in the beginning and 50.1MB in the end (delta: 12.4MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2024-11-27 23:33:36,756 INFO L158 Benchmark]: TraceAbstraction took 6544.36ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 49.6MB in the beginning and 190.8MB in the end (delta: -141.2MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2024-11-27 23:33:36,756 INFO L158 Benchmark]: Witness Printer took 8.81ms. Allocated memory is still 260.0MB. Free memory was 190.8MB in the beginning and 190.7MB in the end (delta: 51.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:33:36,758 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 117.4MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 941.23ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 67.5MB in the end (delta: 22.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.38ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 65.2MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 99.94ms. Allocated memory is still 117.4MB. Free memory was 65.2MB in the beginning and 62.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1129.30ms. Allocated memory is still 117.4MB. Free memory was 62.5MB in the beginning and 50.1MB in the end (delta: 12.4MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. * TraceAbstraction took 6544.36ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 49.6MB in the beginning and 190.8MB in the end (delta: -141.2MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Witness Printer took 8.81ms. Allocated memory is still 260.0MB. Free memory was 190.8MB in the beginning and 190.7MB in the end (delta: 51.0kB). 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: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L711] 0 _Bool main$tmp_guard0; [L712] 0 _Bool main$tmp_guard1; [L714] 0 int x = 0; [L715] 0 _Bool x$flush_delayed; [L716] 0 int x$mem_tmp; [L717] 0 _Bool x$r_buff0_thd0; [L718] 0 _Bool x$r_buff0_thd1; [L719] 0 _Bool x$r_buff0_thd2; [L720] 0 _Bool x$r_buff1_thd0; [L721] 0 _Bool x$r_buff1_thd1; [L722] 0 _Bool x$r_buff1_thd2; [L723] 0 _Bool x$read_delayed; [L724] 0 int *x$read_delayed_var; [L725] 0 int x$w_buff0; [L726] 0 _Bool x$w_buff0_used; [L727] 0 int x$w_buff1; [L728] 0 _Bool x$w_buff1_used; [L730] 0 int y = 0; [L731] 0 _Bool weak$$choice0; [L732] 0 _Bool weak$$choice2; [L792] 0 pthread_t t1447; [L793] FCALL, FORK 0 pthread_create(&t1447, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1447=-1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L794] 0 pthread_t t1448; [L795] FCALL, FORK 0 pthread_create(&t1448, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1447=-1, t1448=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L756] 2 x$w_buff1 = x$w_buff0 [L757] 2 x$w_buff0 = 2 [L758] 2 x$w_buff1_used = x$w_buff0_used [L759] 2 x$w_buff0_used = (_Bool)1 [L760] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L760] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L761] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L762] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L763] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L764] 2 x$r_buff0_thd2 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L767] 2 __unbuffered_p1_EAX = y VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L736] 1 y = 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L739] 1 x = 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=1] [L742] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L743] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L744] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L745] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L746] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=1] [L770] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L771] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L772] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L773] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L774] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1] [L749] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1] [L777] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1] [L797] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1447=-1, t1448=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1] [L799] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L799] RET 0 assume_abort_if_not(main$tmp_guard0) [L801] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L802] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L803] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L804] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L805] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1447=-1, t1448=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1] [L808] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L809] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L810] 0 x$flush_delayed = weak$$choice2 [L811] 0 x$mem_tmp = x [L812] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L813] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L814] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L815] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L816] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L817] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L818] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L819] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0) [L820] 0 x = x$flush_delayed ? x$mem_tmp : x [L821] 0 x$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1447=-1, t1448=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1] [L823] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1] [L17] 0 __assert_fail ("0", "mix054_pso.opt_rmo.opt_tso.oepc_tso.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=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: 790]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 793]: 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: 795]: 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 5 procedures, 51 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 171 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 160 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 484 IncrementalHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 6 mSDtfsCounter, 484 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=5, InterpolantAutomatonStates: 31, 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: 0.2s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 428 SizeOfPredicates, 15 NumberOfNonLiveVariables, 514 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 [2024-11-27 23:33:36,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3179ff61-e0e3-44bd-b587-258ba8bb6d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample