./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_15-1.c --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_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/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_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_15-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/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_803ef9ec-750a-4c51-adff-16710ac09986/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 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:44:34,308 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:44:34,385 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 02:44:34,390 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:44:34,390 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:44:34,415 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:44:34,416 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:44:34,416 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:44:34,417 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:44:34,417 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:44:34,417 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:44:34,417 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:44:34,418 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:44:34,418 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:44:34,418 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:44:34,418 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:44:34,418 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:44:34,418 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:44:34,419 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:44:34,419 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:44:34,419 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:44:34,419 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:44:34,419 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 02:44:34,419 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:44:34,419 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:44:34,420 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:44:34,420 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:44:34,420 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:44:34,420 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:44:34,420 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:44:34,420 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:44:34,420 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:44:34,421 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:44:34,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:34,421 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:44:34,421 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:44:34,421 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:44:34,421 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:44:34,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:34,422 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:44:34,422 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:44:34,422 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:44:34,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:44:34,422 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:44:34,422 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:44:34,422 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:44:34,423 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:44:34,423 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_803ef9ec-750a-4c51-adff-16710ac09986/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 -> 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 [2024-11-28 02:44:34,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:44:34,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:44:34,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:44:34,714 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:44:34,715 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:44:34,717 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/locks/test_locks_15-1.c [2024-11-28 02:44:37,766 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/data/d900d9970/a66b1fd9dd4244d1b5ef93764fe20c47/FLAG31c5ee344 [2024-11-28 02:44:38,043 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:44:38,046 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/sv-benchmarks/c/locks/test_locks_15-1.c [2024-11-28 02:44:38,068 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/data/d900d9970/a66b1fd9dd4244d1b5ef93764fe20c47/FLAG31c5ee344 [2024-11-28 02:44:38,344 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/data/d900d9970/a66b1fd9dd4244d1b5ef93764fe20c47 [2024-11-28 02:44:38,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:44:38,351 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:44:38,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:44:38,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:44:38,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:44:38,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:44:38" (1/1) ... [2024-11-28 02:44:38,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bda2c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:38, skipping insertion in model container [2024-11-28 02:44:38,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:44:38" (1/1) ... [2024-11-28 02:44:38,393 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:44:38,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:44:38,639 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:44:38,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:44:38,688 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:44:38,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:38 WrapperNode [2024-11-28 02:44:38,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:44:38,690 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:44:38,690 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:44:38,690 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:44:38,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:38" (1/1) ... [2024-11-28 02:44:38,706 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:38" (1/1) ... [2024-11-28 02:44:38,736 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 210 [2024-11-28 02:44:38,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:44:38,739 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:44:38,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:44:38,740 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:44:38,749 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:38" (1/1) ... [2024-11-28 02:44:38,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:38" (1/1) ... [2024-11-28 02:44:38,753 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:38" (1/1) ... [2024-11-28 02:44:38,775 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:44:38,778 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:38" (1/1) ... [2024-11-28 02:44:38,779 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:38" (1/1) ... [2024-11-28 02:44:38,783 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:38" (1/1) ... [2024-11-28 02:44:38,787 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:38" (1/1) ... [2024-11-28 02:44:38,796 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:38" (1/1) ... [2024-11-28 02:44:38,801 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:38" (1/1) ... [2024-11-28 02:44:38,802 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:38" (1/1) ... [2024-11-28 02:44:38,805 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:44:38,805 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:44:38,806 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:44:38,806 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:44:38,807 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:38" (1/1) ... [2024-11-28 02:44:38,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:38,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:38,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:44:38,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:44:38,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:44:38,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:44:38,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:44:38,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:44:38,942 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:44:38,944 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:44:39,247 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-28 02:44:39,249 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:44:39,265 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:44:39,266 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:44:39,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:44:39 BoogieIcfgContainer [2024-11-28 02:44:39,266 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:44:39,269 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:44:39,269 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:44:39,276 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:44:39,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:44:38" (1/3) ... [2024-11-28 02:44:39,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b08dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:44:39, skipping insertion in model container [2024-11-28 02:44:39,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:38" (2/3) ... [2024-11-28 02:44:39,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b08dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:44:39, skipping insertion in model container [2024-11-28 02:44:39,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:44:39" (3/3) ... [2024-11-28 02:44:39,281 INFO L128 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2024-11-28 02:44:39,299 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:44:39,302 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test_locks_15-1.c that has 1 procedures, 58 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-28 02:44:39,352 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:44:39,370 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;@6afb2be5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:44:39,370 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 02:44:39,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 55 states have (on average 1.9090909090909092) internal successors, (105), 57 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:39,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-28 02:44:39,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:39,381 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 02:44:39,382 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:39,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:39,388 INFO L85 PathProgramCache]: Analyzing trace with hash 28959894, now seen corresponding path program 1 times [2024-11-28 02:44:39,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:39,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410236356] [2024-11-28 02:44:39,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:39,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:39,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:44:39,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:39,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410236356] [2024-11-28 02:44:39,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410236356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:39,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:39,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:44:39,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048212639] [2024-11-28 02:44:39,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:39,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:44:39,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:39,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:44:39,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:44:39,610 INFO L87 Difference]: Start difference. First operand has 58 states, 55 states have (on average 1.9090909090909092) internal successors, (105), 57 states have internal predecessors, (105), 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:39,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:39,630 INFO L93 Difference]: Finished difference Result 57 states and 101 transitions. [2024-11-28 02:44:39,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:44:39,633 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2024-11-28 02:44:39,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:39,641 INFO L225 Difference]: With dead ends: 57 [2024-11-28 02:44:39,642 INFO L226 Difference]: Without dead ends: 55 [2024-11-28 02:44:39,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:44:39,650 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:39,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:39,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-28 02:44:39,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-28 02:44:39,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 53 states have (on average 1.8679245283018868) internal successors, (99), 54 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) [2024-11-28 02:44:39,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2024-11-28 02:44:39,697 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 5 [2024-11-28 02:44:39,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:39,697 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2024-11-28 02:44:39,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:39,700 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2024-11-28 02:44:39,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-28 02:44:39,700 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:39,700 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 02:44:39,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:44:39,701 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:39,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:39,706 INFO L85 PathProgramCache]: Analyzing trace with hash 889700686, now seen corresponding path program 1 times [2024-11-28 02:44:39,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:39,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492257898] [2024-11-28 02:44:39,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:39,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:39,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:44:39,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:39,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492257898] [2024-11-28 02:44:39,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492257898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:39,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:39,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:44:39,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458616855] [2024-11-28 02:44:39,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:39,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:44:39,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:39,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:44:39,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:39,825 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:39,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:39,848 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2024-11-28 02:44:39,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:44:39,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2024-11-28 02:44:39,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:39,852 INFO L225 Difference]: With dead ends: 54 [2024-11-28 02:44:39,852 INFO L226 Difference]: Without dead ends: 52 [2024-11-28 02:44:39,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:39,853 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 93 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:39,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 98 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:39,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-28 02:44:39,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-28 02:44:39,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.8823529411764706) internal successors, (96), 51 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:39,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 96 transitions. [2024-11-28 02:44:39,862 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 96 transitions. Word has length 6 [2024-11-28 02:44:39,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:39,863 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 96 transitions. [2024-11-28 02:44:39,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:39,863 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2024-11-28 02:44:39,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 02:44:39,863 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:39,863 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:39,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:44:39,864 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:39,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:39,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1809554789, now seen corresponding path program 1 times [2024-11-28 02:44:39,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:39,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091229890] [2024-11-28 02:44:39,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:39,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:40,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:44:40,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:40,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091229890] [2024-11-28 02:44:40,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091229890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:40,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:40,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:44:40,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135905811] [2024-11-28 02:44:40,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:40,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:44:40,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:40,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:44:40,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:40,059 INFO L87 Difference]: Start difference. First operand 52 states and 96 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:40,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:40,108 INFO L93 Difference]: Finished difference Result 101 states and 186 transitions. [2024-11-28 02:44:40,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:44:40,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) Word has length 23 [2024-11-28 02:44:40,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:40,111 INFO L225 Difference]: With dead ends: 101 [2024-11-28 02:44:40,111 INFO L226 Difference]: Without dead ends: 101 [2024-11-28 02:44:40,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:40,112 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 77 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:40,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 242 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:40,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-28 02:44:40,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2024-11-28 02:44:40,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.8969072164948453) internal successors, (184), 97 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:40,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 184 transitions. [2024-11-28 02:44:40,132 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 184 transitions. Word has length 23 [2024-11-28 02:44:40,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:40,132 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 184 transitions. [2024-11-28 02:44:40,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:40,133 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 184 transitions. [2024-11-28 02:44:40,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 02:44:40,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:40,135 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:40,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:44:40,136 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:40,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:40,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1809331837, now seen corresponding path program 1 times [2024-11-28 02:44:40,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:40,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747236352] [2024-11-28 02:44:40,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:40,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:40,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:44:40,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:40,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747236352] [2024-11-28 02:44:40,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747236352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:40,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:40,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:44:40,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705364199] [2024-11-28 02:44:40,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:40,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:44:40,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:40,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:44:40,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:40,261 INFO L87 Difference]: Start difference. First operand 98 states and 184 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:40,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:40,296 INFO L93 Difference]: Finished difference Result 99 states and 185 transitions. [2024-11-28 02:44:40,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:44:40,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) Word has length 23 [2024-11-28 02:44:40,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:40,301 INFO L225 Difference]: With dead ends: 99 [2024-11-28 02:44:40,301 INFO L226 Difference]: Without dead ends: 99 [2024-11-28 02:44:40,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:40,302 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 14 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:40,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 186 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:40,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-28 02:44:40,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-28 02:44:40,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.8877551020408163) internal successors, (185), 98 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:40,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 185 transitions. [2024-11-28 02:44:40,314 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 185 transitions. Word has length 23 [2024-11-28 02:44:40,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:40,315 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 185 transitions. [2024-11-28 02:44:40,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:40,315 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 185 transitions. [2024-11-28 02:44:40,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 02:44:40,315 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:40,315 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:40,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:44:40,316 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:40,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:40,316 INFO L85 PathProgramCache]: Analyzing trace with hash 120611047, now seen corresponding path program 1 times [2024-11-28 02:44:40,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:40,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428696007] [2024-11-28 02:44:40,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:40,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:40,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:44:40,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:40,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428696007] [2024-11-28 02:44:40,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428696007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:40,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:40,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:44:40,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809775426] [2024-11-28 02:44:40,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:40,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:44:40,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:40,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:44:40,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:40,442 INFO L87 Difference]: Start difference. First operand 99 states and 185 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:40,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:40,476 INFO L93 Difference]: Finished difference Result 139 states and 253 transitions. [2024-11-28 02:44:40,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:44:40,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) Word has length 23 [2024-11-28 02:44:40,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:40,477 INFO L225 Difference]: With dead ends: 139 [2024-11-28 02:44:40,477 INFO L226 Difference]: Without dead ends: 139 [2024-11-28 02:44:40,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:40,478 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 77 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:40,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 136 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:40,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-28 02:44:40,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 136. [2024-11-28 02:44:40,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.8592592592592592) internal successors, (251), 135 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:40,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 251 transitions. [2024-11-28 02:44:40,500 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 251 transitions. Word has length 23 [2024-11-28 02:44:40,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:40,501 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 251 transitions. [2024-11-28 02:44:40,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:40,501 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 251 transitions. [2024-11-28 02:44:40,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 02:44:40,502 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:40,502 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:40,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:44:40,502 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:40,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:40,507 INFO L85 PathProgramCache]: Analyzing trace with hash 120388095, now seen corresponding path program 1 times [2024-11-28 02:44:40,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:40,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29289158] [2024-11-28 02:44:40,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:40,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:40,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:44:40,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:40,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29289158] [2024-11-28 02:44:40,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29289158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:40,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:40,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:44:40,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119479641] [2024-11-28 02:44:40,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:40,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:44:40,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:40,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:44:40,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:40,554 INFO L87 Difference]: Start difference. First operand 136 states and 251 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:40,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:40,581 INFO L93 Difference]: Finished difference Result 137 states and 246 transitions. [2024-11-28 02:44:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:44:40,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) Word has length 23 [2024-11-28 02:44:40,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:40,585 INFO L225 Difference]: With dead ends: 137 [2024-11-28 02:44:40,585 INFO L226 Difference]: Without dead ends: 137 [2024-11-28 02:44:40,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:40,586 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 75 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:40,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 214 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:40,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-28 02:44:40,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2024-11-28 02:44:40,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.8345864661654134) internal successors, (244), 133 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:40,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 244 transitions. [2024-11-28 02:44:40,604 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 244 transitions. Word has length 23 [2024-11-28 02:44:40,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:40,604 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 244 transitions. [2024-11-28 02:44:40,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:40,604 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 244 transitions. [2024-11-28 02:44:40,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 02:44:40,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:40,605 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:40,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:44:40,605 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:40,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:40,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1873533659, now seen corresponding path program 1 times [2024-11-28 02:44:40,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:40,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047536400] [2024-11-28 02:44:40,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:40,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:44:40,639 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:44:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:44:40,670 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:44:40,670 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:44:40,671 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2024-11-28 02:44:40,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2024-11-28 02:44:40,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:44:40,676 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:40,722 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:44:40,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:44:40 BoogieIcfgContainer [2024-11-28 02:44:40,725 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:44:40,728 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:44:40,728 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:44:40,728 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:44:40,729 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:44:39" (3/4) ... [2024-11-28 02:44:40,732 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:44:40,732 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:44:40,733 INFO L158 Benchmark]: Toolchain (without parser) took 2383.35ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 74.2MB in the end (delta: 45.2MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. [2024-11-28 02:44:40,736 INFO L158 Benchmark]: CDTParser took 1.50ms. Allocated memory is still 142.6MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:44:40,736 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.91ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 107.3MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:44:40,736 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.98ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 105.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:44:40,736 INFO L158 Benchmark]: Boogie Preprocessor took 65.31ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 103.8MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:44:40,737 INFO L158 Benchmark]: RCFGBuilder took 460.86ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 85.8MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:44:40,738 INFO L158 Benchmark]: TraceAbstraction took 1456.22ms. Allocated memory is still 142.6MB. Free memory was 85.3MB in the beginning and 74.2MB in the end (delta: 11.1MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2024-11-28 02:44:40,738 INFO L158 Benchmark]: Witness Printer took 4.88ms. Allocated memory is still 142.6MB. Free memory was 74.2MB in the beginning and 74.2MB in the end (delta: 21.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:44:40,740 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50ms. Allocated memory is still 142.6MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.91ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 107.3MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.98ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 105.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 65.31ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 103.8MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 460.86ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 85.8MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1456.22ms. Allocated memory is still 142.6MB. Free memory was 85.3MB in the beginning and 74.2MB in the end (delta: 11.1MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Witness Printer took 4.88ms. Allocated memory is still 142.6MB. Free memory was 74.2MB in the beginning and 74.2MB in the end (delta: 21.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 3]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; VAL [p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L93] COND FALSE !(p1 != 0) VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L97] COND FALSE !(p2 != 0) VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L101] COND FALSE !(p3 != 0) VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L105] COND TRUE p4 != 0 [L106] lk4 = 1 VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L109] COND TRUE p5 != 0 [L110] lk5 = 1 VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L113] COND TRUE p6 != 0 [L114] lk6 = 1 VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L117] COND TRUE p7 != 0 [L118] lk7 = 1 VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L121] COND TRUE p8 != 0 [L122] lk8 = 1 VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L125] COND TRUE p9 != 0 [L126] lk9 = 1 VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L129] COND TRUE p10 != 0 [L130] lk10 = 1 VAL [lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L133] COND FALSE !(p11 != 0) VAL [lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L137] COND TRUE p12 != 0 [L138] lk12 = 1 VAL [lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L141] COND TRUE p13 != 0 [L142] lk13 = 1 VAL [lk10=1, lk11=0, lk12=1, lk13=1, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L145] COND TRUE p14 != 0 [L146] lk14 = 1 VAL [lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L149] COND TRUE p15 != 0 [L150] lk15 = 1 VAL [lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L155] COND FALSE !(p1 != 0) VAL [lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L160] COND FALSE !(p2 != 0) VAL [lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L233] CALL reach_error() [L3] __assert_fail("0", "test_locks_15-1.c", 3, "reach_error") - UnprovableResult [Line: 6]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 58 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 336 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 336 mSDsluCounter, 977 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 307 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 670 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=5, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 257 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 [2024-11-28 02:44:40,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/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_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/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_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_15-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/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_803ef9ec-750a-4c51-adff-16710ac09986/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 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:44:43,356 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:44:43,482 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-28 02:44:43,492 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:44:43,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:44:43,535 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:44:43,536 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:44:43,537 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:44:43,538 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:44:43,538 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:44:43,539 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:44:43,539 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:44:43,539 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:44:43,539 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:44:43,540 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:44:43,540 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:44:43,540 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:44:43,540 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:44:43,541 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:44:43,541 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:44:43,541 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:44:43,541 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:44:43,541 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 02:44:43,541 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:44:43,541 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:44:43,542 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:44:43,542 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:44:43,542 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:44:43,542 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:44:43,542 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:44:43,542 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:44:43,543 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:44:43,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:44:43,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:44:43,543 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:44:43,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:43,544 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:44:43,544 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:44:43,544 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:44:43,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:44:43,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:43,545 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:44:43,545 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:44:43,545 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:44:43,545 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:44:43,546 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:44:43,546 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:44:43,546 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:44:43,546 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:44:43,546 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_803ef9ec-750a-4c51-adff-16710ac09986/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 -> 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 [2024-11-28 02:44:43,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:44:43,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:44:43,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:44:43,879 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:44:43,879 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:44:43,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/locks/test_locks_15-1.c [2024-11-28 02:44:46,979 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/data/b522cdb0d/7e28c535b11f47a4be62fa77bec78dc8/FLAGd611b2949 [2024-11-28 02:44:47,248 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:44:47,250 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/sv-benchmarks/c/locks/test_locks_15-1.c [2024-11-28 02:44:47,260 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/data/b522cdb0d/7e28c535b11f47a4be62fa77bec78dc8/FLAGd611b2949 [2024-11-28 02:44:47,544 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/data/b522cdb0d/7e28c535b11f47a4be62fa77bec78dc8 [2024-11-28 02:44:47,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:44:47,550 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:44:47,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:44:47,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:44:47,557 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:44:47,558 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:44:47" (1/1) ... [2024-11-28 02:44:47,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@582bdeb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:47, skipping insertion in model container [2024-11-28 02:44:47,562 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:44:47" (1/1) ... [2024-11-28 02:44:47,584 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:44:47,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:44:47,827 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:44:47,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:44:47,903 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:44:47,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:47 WrapperNode [2024-11-28 02:44:47,904 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:44:47,905 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:44:47,905 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:44:47,905 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:44:47,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:47" (1/1) ... [2024-11-28 02:44:47,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:47" (1/1) ... [2024-11-28 02:44:47,957 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 194 [2024-11-28 02:44:47,959 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:44:47,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:44:47,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:44:47,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:44:47,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:47" (1/1) ... [2024-11-28 02:44:47,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:47" (1/1) ... [2024-11-28 02:44:47,972 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:47" (1/1) ... [2024-11-28 02:44:47,983 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:44:47,983 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:47" (1/1) ... [2024-11-28 02:44:47,983 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:47" (1/1) ... [2024-11-28 02:44:47,988 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:47" (1/1) ... [2024-11-28 02:44:47,989 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:47" (1/1) ... [2024-11-28 02:44:47,994 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:47" (1/1) ... [2024-11-28 02:44:47,995 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:47" (1/1) ... [2024-11-28 02:44:47,996 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:47" (1/1) ... [2024-11-28 02:44:47,998 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:44:48,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:44:48,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:44:48,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:44:48,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:47" (1/1) ... [2024-11-28 02:44:48,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:48,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:48,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:44:48,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:44:48,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:44:48,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:44:48,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:44:48,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:44:48,149 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:44:48,151 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:44:48,535 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-28 02:44:48,536 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:44:48,552 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:44:48,552 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:44:48,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:44:48 BoogieIcfgContainer [2024-11-28 02:44:48,553 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:44:48,555 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:44:48,556 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:44:48,565 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:44:48,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:44:47" (1/3) ... [2024-11-28 02:44:48,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4c9c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:44:48, skipping insertion in model container [2024-11-28 02:44:48,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:47" (2/3) ... [2024-11-28 02:44:48,567 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4c9c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:44:48, skipping insertion in model container [2024-11-28 02:44:48,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:44:48" (3/3) ... [2024-11-28 02:44:48,568 INFO L128 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2024-11-28 02:44:48,585 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:44:48,587 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test_locks_15-1.c that has 1 procedures, 58 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-28 02:44:48,646 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:44:48,656 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;@30b62a28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:44:48,656 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 02:44:48,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 55 states have (on average 1.9090909090909092) internal successors, (105), 57 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:48,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-28 02:44:48,665 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:48,665 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 02:44:48,666 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:48,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:48,670 INFO L85 PathProgramCache]: Analyzing trace with hash 28959894, now seen corresponding path program 1 times [2024-11-28 02:44:48,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:44:48,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1779842667] [2024-11-28 02:44:48,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:48,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:48,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:48,688 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:48,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:44:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:48,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:44:48,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:44:48,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:44:48,783 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:44:48,784 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:44:48,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779842667] [2024-11-28 02:44:48,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779842667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:48,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:48,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:44:48,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275064484] [2024-11-28 02:44:48,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:48,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:44:48,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:44:48,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:44:48,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:44:48,818 INFO L87 Difference]: Start difference. First operand has 58 states, 55 states have (on average 1.9090909090909092) internal successors, (105), 57 states have internal predecessors, (105), 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:48,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:48,833 INFO L93 Difference]: Finished difference Result 57 states and 101 transitions. [2024-11-28 02:44:48,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:44:48,834 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2024-11-28 02:44:48,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:48,841 INFO L225 Difference]: With dead ends: 57 [2024-11-28 02:44:48,841 INFO L226 Difference]: Without dead ends: 55 [2024-11-28 02:44:48,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:44:48,846 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:48,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:48,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-28 02:44:48,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-28 02:44:48,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 53 states have (on average 1.8679245283018868) internal successors, (99), 54 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) [2024-11-28 02:44:48,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2024-11-28 02:44:48,891 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 5 [2024-11-28 02:44:48,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:48,892 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2024-11-28 02:44:48,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:48,892 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2024-11-28 02:44:48,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-28 02:44:48,893 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:48,893 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 02:44:48,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:44:49,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:49,097 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:49,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:49,098 INFO L85 PathProgramCache]: Analyzing trace with hash 889700686, now seen corresponding path program 1 times [2024-11-28 02:44:49,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:44:49,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1700244610] [2024-11-28 02:44:49,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:49,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:49,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:49,101 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:49,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:44:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:49,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:44:49,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:44:49,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:44:49,181 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:44:49,181 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:44:49,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700244610] [2024-11-28 02:44:49,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700244610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:49,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:49,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:44:49,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977212170] [2024-11-28 02:44:49,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:49,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:44:49,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:44:49,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:44:49,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:49,184 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:49,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:49,197 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2024-11-28 02:44:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:44:49,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2024-11-28 02:44:49,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:49,200 INFO L225 Difference]: With dead ends: 54 [2024-11-28 02:44:49,201 INFO L226 Difference]: Without dead ends: 52 [2024-11-28 02:44:49,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:49,203 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 93 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:49,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 98 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:49,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-28 02:44:49,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-28 02:44:49,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.8823529411764706) internal successors, (96), 51 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:49,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 96 transitions. [2024-11-28 02:44:49,209 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 96 transitions. Word has length 6 [2024-11-28 02:44:49,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:49,209 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 96 transitions. [2024-11-28 02:44:49,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:49,210 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2024-11-28 02:44:49,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 02:44:49,210 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:49,210 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:49,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:44:49,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:49,415 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:49,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:49,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1809554789, now seen corresponding path program 1 times [2024-11-28 02:44:49,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:44:49,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [547243230] [2024-11-28 02:44:49,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:49,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:49,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:49,418 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:49,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:44:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:49,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:44:49,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:44:49,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:44:49,569 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:44:49,570 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:44:49,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547243230] [2024-11-28 02:44:49,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547243230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:49,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:49,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:44:49,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414637929] [2024-11-28 02:44:49,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:49,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:44:49,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:44:49,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:44:49,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:49,573 INFO L87 Difference]: Start difference. First operand 52 states and 96 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:49,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:49,616 INFO L93 Difference]: Finished difference Result 101 states and 186 transitions. [2024-11-28 02:44:49,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:44:49,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) Word has length 23 [2024-11-28 02:44:49,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:49,618 INFO L225 Difference]: With dead ends: 101 [2024-11-28 02:44:49,618 INFO L226 Difference]: Without dead ends: 101 [2024-11-28 02:44:49,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:49,619 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 77 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:49,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 242 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:49,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-28 02:44:49,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2024-11-28 02:44:49,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.8969072164948453) internal successors, (184), 97 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:49,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 184 transitions. [2024-11-28 02:44:49,634 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 184 transitions. Word has length 23 [2024-11-28 02:44:49,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:49,634 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 184 transitions. [2024-11-28 02:44:49,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:49,634 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 184 transitions. [2024-11-28 02:44:49,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 02:44:49,635 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:49,635 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:49,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:44:49,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:49,842 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:49,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:49,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1809331837, now seen corresponding path program 1 times [2024-11-28 02:44:49,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:44:49,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1774449353] [2024-11-28 02:44:49,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:49,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:49,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:49,847 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:49,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:44:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:49,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:44:49,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:44:49,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:44:49,985 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:44:49,985 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:44:49,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774449353] [2024-11-28 02:44:49,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774449353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:49,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:49,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:44:49,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723793418] [2024-11-28 02:44:49,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:49,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:44:49,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:44:49,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:44:49,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:49,988 INFO L87 Difference]: Start difference. First operand 98 states and 184 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:50,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:50,017 INFO L93 Difference]: Finished difference Result 99 states and 185 transitions. [2024-11-28 02:44:50,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:44:50,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) Word has length 23 [2024-11-28 02:44:50,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:50,021 INFO L225 Difference]: With dead ends: 99 [2024-11-28 02:44:50,021 INFO L226 Difference]: Without dead ends: 99 [2024-11-28 02:44:50,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:50,022 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 14 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:50,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 186 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:50,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-28 02:44:50,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-28 02:44:50,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.8877551020408163) internal successors, (185), 98 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:50,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 185 transitions. [2024-11-28 02:44:50,040 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 185 transitions. Word has length 23 [2024-11-28 02:44:50,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:50,041 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 185 transitions. [2024-11-28 02:44:50,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:50,041 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 185 transitions. [2024-11-28 02:44:50,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 02:44:50,045 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:50,045 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:50,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:44:50,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:50,246 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:50,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:50,247 INFO L85 PathProgramCache]: Analyzing trace with hash 120611047, now seen corresponding path program 1 times [2024-11-28 02:44:50,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:44:50,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [959365747] [2024-11-28 02:44:50,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:50,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:50,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:50,249 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:50,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:44:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:50,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:44:50,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:44:50,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:44:50,349 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:44:50,349 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:44:50,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959365747] [2024-11-28 02:44:50,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959365747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:50,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:50,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:44:50,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181634998] [2024-11-28 02:44:50,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:50,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:44:50,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:44:50,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:44:50,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:50,351 INFO L87 Difference]: Start difference. First operand 99 states and 185 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:50,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:50,394 INFO L93 Difference]: Finished difference Result 139 states and 253 transitions. [2024-11-28 02:44:50,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:44:50,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) Word has length 23 [2024-11-28 02:44:50,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:50,395 INFO L225 Difference]: With dead ends: 139 [2024-11-28 02:44:50,396 INFO L226 Difference]: Without dead ends: 139 [2024-11-28 02:44:50,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:50,397 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 77 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:50,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 136 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:50,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-28 02:44:50,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 136. [2024-11-28 02:44:50,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.8592592592592592) internal successors, (251), 135 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:50,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 251 transitions. [2024-11-28 02:44:50,406 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 251 transitions. Word has length 23 [2024-11-28 02:44:50,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:50,406 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 251 transitions. [2024-11-28 02:44:50,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:50,407 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 251 transitions. [2024-11-28 02:44:50,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 02:44:50,407 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:50,407 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:50,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 02:44:50,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:50,612 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:50,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:50,613 INFO L85 PathProgramCache]: Analyzing trace with hash 120388095, now seen corresponding path program 1 times [2024-11-28 02:44:50,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:44:50,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1103754644] [2024-11-28 02:44:50,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:50,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:50,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:50,615 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:50,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:44:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:50,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:44:50,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:44:50,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:44:50,710 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:44:50,711 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:44:50,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103754644] [2024-11-28 02:44:50,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103754644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:50,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:50,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:44:50,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726854840] [2024-11-28 02:44:50,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:50,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:44:50,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:44:50,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:44:50,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:50,717 INFO L87 Difference]: Start difference. First operand 136 states and 251 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:50,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:50,733 INFO L93 Difference]: Finished difference Result 137 states and 246 transitions. [2024-11-28 02:44:50,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:44:50,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) Word has length 23 [2024-11-28 02:44:50,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:50,737 INFO L225 Difference]: With dead ends: 137 [2024-11-28 02:44:50,738 INFO L226 Difference]: Without dead ends: 137 [2024-11-28 02:44:50,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:50,738 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 75 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:50,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 214 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:50,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-28 02:44:50,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2024-11-28 02:44:50,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.8345864661654134) internal successors, (244), 133 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:50,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 244 transitions. [2024-11-28 02:44:50,757 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 244 transitions. Word has length 23 [2024-11-28 02:44:50,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:50,758 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 244 transitions. [2024-11-28 02:44:50,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:50,758 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 244 transitions. [2024-11-28 02:44:50,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 02:44:50,759 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:50,759 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:50,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 02:44:50,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:50,960 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:50,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:50,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1873533659, now seen corresponding path program 1 times [2024-11-28 02:44:50,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:44:50,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [642495302] [2024-11-28 02:44:50,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:50,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:50,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:50,964 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:50,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:44:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:44:51,016 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:44:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:44:51,066 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-28 02:44:51,066 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:44:51,067 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2024-11-28 02:44:51,069 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2024-11-28 02:44:51,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 02:44:51,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:51,272 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:51,310 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:44:51,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:44:51 BoogieIcfgContainer [2024-11-28 02:44:51,313 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:44:51,314 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:44:51,315 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:44:51,315 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:44:51,315 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:44:48" (3/4) ... [2024-11-28 02:44:51,318 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:44:51,319 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:44:51,319 INFO L158 Benchmark]: Toolchain (without parser) took 3769.19ms. Allocated memory is still 83.9MB. Free memory was 60.8MB in the beginning and 39.5MB in the end (delta: 21.3MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2024-11-28 02:44:51,320 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 83.9MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:44:51,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.38ms. Allocated memory is still 83.9MB. Free memory was 60.8MB in the beginning and 48.5MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:44:51,320 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.56ms. Allocated memory is still 83.9MB. Free memory was 48.5MB in the beginning and 46.9MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:44:51,321 INFO L158 Benchmark]: Boogie Preprocessor took 39.03ms. Allocated memory is still 83.9MB. Free memory was 46.9MB in the beginning and 45.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:44:51,321 INFO L158 Benchmark]: RCFGBuilder took 549.65ms. Allocated memory is still 83.9MB. Free memory was 45.1MB in the beginning and 25.3MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:44:51,321 INFO L158 Benchmark]: TraceAbstraction took 2757.52ms. Allocated memory is still 83.9MB. Free memory was 24.7MB in the beginning and 40.1MB in the end (delta: -15.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:44:51,322 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 83.9MB. Free memory was 40.1MB in the beginning and 39.5MB in the end (delta: 624.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:44:51,323 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 83.9MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.38ms. Allocated memory is still 83.9MB. Free memory was 60.8MB in the beginning and 48.5MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.56ms. Allocated memory is still 83.9MB. Free memory was 48.5MB in the beginning and 46.9MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.03ms. Allocated memory is still 83.9MB. Free memory was 46.9MB in the beginning and 45.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 549.65ms. Allocated memory is still 83.9MB. Free memory was 45.1MB in the beginning and 25.3MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2757.52ms. Allocated memory is still 83.9MB. Free memory was 24.7MB in the beginning and 40.1MB in the end (delta: -15.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 83.9MB. Free memory was 40.1MB in the beginning and 39.5MB in the end (delta: 624.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 3]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0] [L93] COND FALSE !(p1 != 0) VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0] [L97] COND FALSE !(p2 != 0) VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0] [L101] COND FALSE !(p3 != 0) VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0] [L105] COND TRUE p4 != 0 [L106] lk4 = 1 VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=1] [L109] COND TRUE p5 != 0 [L110] lk5 = 1 VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=1, p5=1] [L113] COND TRUE p6 != 0 [L114] lk6 = 1 VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1] [L117] COND TRUE p7 != 0 [L118] lk7 = 1 VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1] [L121] COND TRUE p8 != 0 [L122] lk8 = 1 VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1] [L125] COND TRUE p9 != 0 [L126] lk9 = 1 VAL [lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L129] COND TRUE p10 != 0 [L130] lk10 = 1 VAL [lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L133] COND FALSE !(p11 != 0) VAL [lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L137] COND TRUE p12 != 0 [L138] lk12 = 1 VAL [lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L141] COND TRUE p13 != 0 [L142] lk13 = 1 VAL [lk10=1, lk11=0, lk12=1, lk13=1, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L145] COND TRUE p14 != 0 [L146] lk14 = 1 VAL [lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L149] COND TRUE p15 != 0 [L150] lk15 = 1 VAL [lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L155] COND FALSE !(p1 != 0) VAL [lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L160] COND FALSE !(p2 != 0) VAL [lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L233] CALL reach_error() [L3] __assert_fail("0", "test_locks_15-1.c", 3, "reach_error") - UnprovableResult [Line: 6]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 58 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 336 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 336 mSDsluCounter, 977 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 307 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 670 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=5, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 257 SizeOfPredicates, 0 NumberOfNonLiveVariables, 279 ConjunctsInSsa, 11 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 [2024-11-28 02:44:51,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803ef9ec-750a-4c51-adff-16710ac09986/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