./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/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_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:59:32,182 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:59:32,254 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-28 02:59:32,261 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:59:32,261 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:59:32,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:59:32,311 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:59:32,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:59:32,314 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:59:32,315 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:59:32,316 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:59:32,316 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:59:32,316 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:59:32,316 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:59:32,316 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:59:32,317 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:59:32,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:59:32,317 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:59:32,317 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:59:32,317 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:59:32,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:59:32,317 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:59:32,317 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:59:32,317 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:59:32,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:59:32,318 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:59:32,318 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:59:32,318 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:59:32,318 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:59:32,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:59:32,318 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:59:32,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:59:32,318 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:59:32,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:59:32,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:59:32,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:59:32,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:59:32,320 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:59:32,320 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:59:32,320 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:59:32,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:59:32,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:59:32,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:59:32,321 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:59:32,321 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:59:32,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:59:32,321 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:59:32,321 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:59:32,321 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:59:32,322 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:59:32,322 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_6d930d54-de61-4357-b137-3b1397e796f6/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-memcleanup) ) 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 -> 501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044 [2024-11-28 02:59:32,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:59:32,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:59:32,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:59:32,720 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:59:32,720 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:59:32,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i [2024-11-28 02:59:35,767 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/data/1d4f5316d/77f91efc7caf4d55a5fdbd4ef23d91e8/FLAG17f8f05b7 [2024-11-28 02:59:36,353 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:59:36,353 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i [2024-11-28 02:59:36,384 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/data/1d4f5316d/77f91efc7caf4d55a5fdbd4ef23d91e8/FLAG17f8f05b7 [2024-11-28 02:59:36,407 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/data/1d4f5316d/77f91efc7caf4d55a5fdbd4ef23d91e8 [2024-11-28 02:59:36,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:59:36,413 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:59:36,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:59:36,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:59:36,422 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:59:36,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:36" (1/1) ... [2024-11-28 02:59:36,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@541d519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:36, skipping insertion in model container [2024-11-28 02:59:36,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:36" (1/1) ... [2024-11-28 02:59:36,499 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:59:37,440 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:59:37,472 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:59:37,477 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:59:37,480 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:59:37,486 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:59:37,514 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:59:37,515 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:59:37,517 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:59:37,517 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:59:37,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:59:37,537 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:59:37,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:59:37,751 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:59:37,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:37 WrapperNode [2024-11-28 02:59:37,752 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:59:37,753 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:59:37,754 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:59:37,754 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:59:37,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:37" (1/1) ... [2024-11-28 02:59:37,846 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:37" (1/1) ... [2024-11-28 02:59:37,964 INFO L138 Inliner]: procedures = 177, calls = 724, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3252 [2024-11-28 02:59:37,965 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:59:37,965 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:59:37,966 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:59:37,966 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:59:37,976 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:37" (1/1) ... [2024-11-28 02:59:37,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:37" (1/1) ... [2024-11-28 02:59:37,992 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:37" (1/1) ... [2024-11-28 02:59:38,078 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 34, 172]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 4, 42]. [2024-11-28 02:59:38,078 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:37" (1/1) ... [2024-11-28 02:59:38,078 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:37" (1/1) ... [2024-11-28 02:59:38,173 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:37" (1/1) ... [2024-11-28 02:59:38,185 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:37" (1/1) ... [2024-11-28 02:59:38,222 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:37" (1/1) ... [2024-11-28 02:59:38,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:37" (1/1) ... [2024-11-28 02:59:38,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:37" (1/1) ... [2024-11-28 02:59:38,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:59:38,274 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:59:38,274 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:59:38,274 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:59:38,275 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:37" (1/1) ... [2024-11-28 02:59:38,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:59:38,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:59:38,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:59:38,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:59:38,350 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-28 02:59:38,351 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-28 02:59:38,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:59:38,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:59:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:59:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:59:38,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:59:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:59:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:59:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:59:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 02:59:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 02:59:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 02:59:38,353 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 02:59:38,353 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 02:59:38,355 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 02:59:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:59:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:59:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:59:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:59:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 02:59:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:59:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:59:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:59:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:59:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:59:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:59:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:59:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:59:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:59:38,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:59:38,622 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:59:38,625 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:59:42,809 INFO L? ?]: Removed 799 outVars from TransFormulas that were not future-live. [2024-11-28 02:59:42,810 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:59:42,882 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:59:42,882 INFO L312 CfgBuilder]: Removed 31 assume(true) statements. [2024-11-28 02:59:42,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:42 BoogieIcfgContainer [2024-11-28 02:59:42,883 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:59:42,888 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:59:42,889 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:59:42,894 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:59:42,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:59:36" (1/3) ... [2024-11-28 02:59:42,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@469b5c1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:42, skipping insertion in model container [2024-11-28 02:59:42,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:37" (2/3) ... [2024-11-28 02:59:42,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@469b5c1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:42, skipping insertion in model container [2024-11-28 02:59:42,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:42" (3/3) ... [2024-11-28 02:59:42,899 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test9-1.i [2024-11-28 02:59:42,917 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:59:42,918 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test9-1.i that has 6 procedures, 1389 locations, 1 initial locations, 33 loop locations, and 2 error locations. [2024-11-28 02:59:43,018 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:59:43,040 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;@1354995c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:59:43,040 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 02:59:43,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 1381 states, 870 states have (on average 1.8333333333333333) internal successors, (1595), 1374 states have internal predecessors, (1595), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2024-11-28 02:59:43,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-28 02:59:43,062 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:43,062 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:43,063 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:59:43,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:43,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1561124398, now seen corresponding path program 1 times [2024-11-28 02:59:43,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:43,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591025921] [2024-11-28 02:59:43,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:43,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:43,272 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 02:59:43,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:43,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591025921] [2024-11-28 02:59:43,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591025921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:43,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:43,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:59:43,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120186672] [2024-11-28 02:59:43,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:43,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:59:43,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:43,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:59:43,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:59:43,318 INFO L87 Difference]: Start difference. First operand has 1381 states, 870 states have (on average 1.8333333333333333) internal successors, (1595), 1374 states have internal predecessors, (1595), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 02:59:43,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:43,488 INFO L93 Difference]: Finished difference Result 1379 states and 2542 transitions. [2024-11-28 02:59:43,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:59:43,490 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2024-11-28 02:59:43,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:43,525 INFO L225 Difference]: With dead ends: 1379 [2024-11-28 02:59:43,525 INFO L226 Difference]: Without dead ends: 1377 [2024-11-28 02:59:43,527 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 02:59:43,531 INFO L435 NwaCegarLoop]: 2542 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, 2542 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 02:59:43,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2542 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:59:43,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2024-11-28 02:59:43,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1377. [2024-11-28 02:59:43,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 868 states have (on average 1.7649769585253456) internal successors, (1532), 1370 states have internal predecessors, (1532), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-28 02:59:44,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2540 transitions. [2024-11-28 02:59:44,096 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2540 transitions. Word has length 7 [2024-11-28 02:59:44,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:44,096 INFO L471 AbstractCegarLoop]: Abstraction has 1377 states and 2540 transitions. [2024-11-28 02:59:44,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 02:59:44,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2540 transitions. [2024-11-28 02:59:44,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 02:59:44,097 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:44,097 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:44,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:59:44,098 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:59:44,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:44,099 INFO L85 PathProgramCache]: Analyzing trace with hash -861885984, now seen corresponding path program 1 times [2024-11-28 02:59:44,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:44,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939698840] [2024-11-28 02:59:44,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:44,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:44,429 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 02:59:44,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:44,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939698840] [2024-11-28 02:59:44,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939698840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:44,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:44,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:59:44,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66966909] [2024-11-28 02:59:44,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:44,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:59:44,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:44,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:59:44,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:59:44,435 INFO L87 Difference]: Start difference. First operand 1377 states and 2540 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 02:59:45,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:45,754 INFO L93 Difference]: Finished difference Result 2737 states and 5064 transitions. [2024-11-28 02:59:45,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:59:45,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2024-11-28 02:59:45,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:45,784 INFO L225 Difference]: With dead ends: 2737 [2024-11-28 02:59:45,785 INFO L226 Difference]: Without dead ends: 2737 [2024-11-28 02:59:45,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:59:45,786 INFO L435 NwaCegarLoop]: 2587 mSDtfsCounter, 1514 mSDsluCounter, 4600 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2017 SdHoareTripleChecker+Valid, 7187 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:45,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2017 Valid, 7187 Invalid, 566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 02:59:45,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2737 states. [2024-11-28 02:59:46,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2737 to 1379. [2024-11-28 02:59:46,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1379 states, 870 states have (on average 1.7632183908045977) internal successors, (1534), 1372 states have internal predecessors, (1534), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-28 02:59:46,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 2542 transitions. [2024-11-28 02:59:46,576 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 2542 transitions. Word has length 9 [2024-11-28 02:59:46,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:46,576 INFO L471 AbstractCegarLoop]: Abstraction has 1379 states and 2542 transitions. [2024-11-28 02:59:46,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 02:59:46,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 2542 transitions. [2024-11-28 02:59:46,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 02:59:46,579 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:46,579 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:46,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:59:46,579 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:59:46,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:46,580 INFO L85 PathProgramCache]: Analyzing trace with hash -479989262, now seen corresponding path program 1 times [2024-11-28 02:59:46,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:46,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117232664] [2024-11-28 02:59:46,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:46,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:47,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:59:47,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:47,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117232664] [2024-11-28 02:59:47,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117232664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:47,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:47,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:59:47,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708816985] [2024-11-28 02:59:47,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:47,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:59:47,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:47,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:59:47,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:59:47,249 INFO L87 Difference]: Start difference. First operand 1379 states and 2542 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 02:59:47,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:47,416 INFO L93 Difference]: Finished difference Result 1336 states and 2464 transitions. [2024-11-28 02:59:47,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:59:47,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 86 [2024-11-28 02:59:47,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:47,428 INFO L225 Difference]: With dead ends: 1336 [2024-11-28 02:59:47,428 INFO L226 Difference]: Without dead ends: 1336 [2024-11-28 02:59:47,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:59:47,430 INFO L435 NwaCegarLoop]: 2437 mSDtfsCounter, 30 mSDsluCounter, 4855 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 7292 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:47,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 7292 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:59:47,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2024-11-28 02:59:47,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1336. [2024-11-28 02:59:47,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 827 states have (on average 1.7605804111245467) internal successors, (1456), 1329 states have internal predecessors, (1456), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-28 02:59:47,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 2464 transitions. [2024-11-28 02:59:47,674 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 2464 transitions. Word has length 86 [2024-11-28 02:59:47,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:47,675 INFO L471 AbstractCegarLoop]: Abstraction has 1336 states and 2464 transitions. [2024-11-28 02:59:47,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 02:59:47,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 2464 transitions. [2024-11-28 02:59:47,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 02:59:47,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:47,681 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:47,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:59:47,682 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:59:47,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:47,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1330986470, now seen corresponding path program 1 times [2024-11-28 02:59:47,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:47,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484668285] [2024-11-28 02:59:47,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:47,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:48,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:59:48,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:48,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484668285] [2024-11-28 02:59:48,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484668285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:48,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:48,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:59:48,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81941909] [2024-11-28 02:59:48,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:48,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:59:48,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:48,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:59:48,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:59:48,115 INFO L87 Difference]: Start difference. First operand 1336 states and 2464 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 02:59:48,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:48,288 INFO L93 Difference]: Finished difference Result 2565 states and 4791 transitions. [2024-11-28 02:59:48,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:59:48,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2024-11-28 02:59:48,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:48,307 INFO L225 Difference]: With dead ends: 2565 [2024-11-28 02:59:48,307 INFO L226 Difference]: Without dead ends: 2565 [2024-11-28 02:59:48,307 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 02:59:48,308 INFO L435 NwaCegarLoop]: 2662 mSDtfsCounter, 1264 mSDsluCounter, 2442 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 5104 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:48,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1764 Valid, 5104 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:59:48,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2024-11-28 02:59:48,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2561. [2024-11-28 02:59:48,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2561 states, 1552 states have (on average 1.791237113402062) internal successors, (2780), 2554 states have internal predecessors, (2780), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-28 02:59:48,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2561 states to 2561 states and 4788 transitions. [2024-11-28 02:59:48,626 INFO L78 Accepts]: Start accepts. Automaton has 2561 states and 4788 transitions. Word has length 86 [2024-11-28 02:59:48,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:48,627 INFO L471 AbstractCegarLoop]: Abstraction has 2561 states and 4788 transitions. [2024-11-28 02:59:48,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 02:59:48,628 INFO L276 IsEmpty]: Start isEmpty. Operand 2561 states and 4788 transitions. [2024-11-28 02:59:48,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 02:59:48,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:48,632 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:48,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:59:48,633 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:59:48,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:48,633 INFO L85 PathProgramCache]: Analyzing trace with hash 757427334, now seen corresponding path program 1 times [2024-11-28 02:59:48,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:48,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492980745] [2024-11-28 02:59:48,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:48,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:49,266 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 02:59:49,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:49,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492980745] [2024-11-28 02:59:49,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492980745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:49,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:49,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:59:49,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107391554] [2024-11-28 02:59:49,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:49,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:59:49,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:49,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:59:49,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:59:49,270 INFO L87 Difference]: Start difference. First operand 2561 states and 4788 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:59:50,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:50,415 INFO L93 Difference]: Finished difference Result 4792 states and 9116 transitions. [2024-11-28 02:59:50,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:59:50,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 101 [2024-11-28 02:59:50,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:50,449 INFO L225 Difference]: With dead ends: 4792 [2024-11-28 02:59:50,453 INFO L226 Difference]: Without dead ends: 4792 [2024-11-28 02:59:50,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:59:50,454 INFO L435 NwaCegarLoop]: 2595 mSDtfsCounter, 1426 mSDsluCounter, 4524 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1929 SdHoareTripleChecker+Valid, 7119 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:50,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1929 Valid, 7119 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:59:50,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4792 states. [2024-11-28 02:59:50,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4792 to 2563. [2024-11-28 02:59:50,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 1554 states have (on average 1.7902187902187903) internal successors, (2782), 2556 states have internal predecessors, (2782), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-28 02:59:50,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 4790 transitions. [2024-11-28 02:59:50,997 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 4790 transitions. Word has length 101 [2024-11-28 02:59:50,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:50,998 INFO L471 AbstractCegarLoop]: Abstraction has 2563 states and 4790 transitions. [2024-11-28 02:59:50,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:59:50,999 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 4790 transitions. [2024-11-28 02:59:51,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-28 02:59:51,001 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:51,002 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:51,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:59:51,002 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:59:51,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:51,003 INFO L85 PathProgramCache]: Analyzing trace with hash 291759050, now seen corresponding path program 1 times [2024-11-28 02:59:51,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:51,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375186843] [2024-11-28 02:59:51,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:51,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:51,435 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 02:59:51,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:51,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375186843] [2024-11-28 02:59:51,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375186843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:51,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:51,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:59:51,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891343438] [2024-11-28 02:59:51,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:51,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:59:51,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:51,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:59:51,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:59:51,439 INFO L87 Difference]: Start difference. First operand 2563 states and 4790 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:59:51,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:51,590 INFO L93 Difference]: Finished difference Result 2569 states and 4782 transitions. [2024-11-28 02:59:51,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:59:51,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 158 [2024-11-28 02:59:51,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:51,610 INFO L225 Difference]: With dead ends: 2569 [2024-11-28 02:59:51,610 INFO L226 Difference]: Without dead ends: 2569 [2024-11-28 02:59:51,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:59:51,612 INFO L435 NwaCegarLoop]: 2428 mSDtfsCounter, 107 mSDsluCounter, 4762 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 7190 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:51,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 7190 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:59:51,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2024-11-28 02:59:52,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 2563. [2024-11-28 02:59:52,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 1554 states have (on average 1.7812097812097811) internal successors, (2768), 2556 states have internal predecessors, (2768), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-28 02:59:52,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 4776 transitions. [2024-11-28 02:59:52,137 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 4776 transitions. Word has length 158 [2024-11-28 02:59:52,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:52,138 INFO L471 AbstractCegarLoop]: Abstraction has 2563 states and 4776 transitions. [2024-11-28 02:59:52,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:59:52,138 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 4776 transitions. [2024-11-28 02:59:52,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-28 02:59:52,145 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:52,145 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:52,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:59:52,145 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:59:52,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:52,146 INFO L85 PathProgramCache]: Analyzing trace with hash -3736068, now seen corresponding path program 1 times [2024-11-28 02:59:52,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:52,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891472930] [2024-11-28 02:59:52,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:52,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:52,532 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 02:59:52,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:52,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891472930] [2024-11-28 02:59:52,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891472930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:52,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:52,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:59:52,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959778124] [2024-11-28 02:59:52,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:52,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:59:52,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:52,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:59:52,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:59:52,537 INFO L87 Difference]: Start difference. First operand 2563 states and 4776 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:59:52,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:52,675 INFO L93 Difference]: Finished difference Result 2575 states and 4788 transitions. [2024-11-28 02:59:52,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:59:52,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 158 [2024-11-28 02:59:52,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:52,694 INFO L225 Difference]: With dead ends: 2575 [2024-11-28 02:59:52,694 INFO L226 Difference]: Without dead ends: 2575 [2024-11-28 02:59:52,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 02:59:52,695 INFO L435 NwaCegarLoop]: 2443 mSDtfsCounter, 2 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4864 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:52,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4864 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:59:52,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2575 states. [2024-11-28 02:59:53,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2575 to 2575. [2024-11-28 02:59:53,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2575 states, 1566 states have (on average 1.7752234993614304) internal successors, (2780), 2568 states have internal predecessors, (2780), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-28 02:59:53,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2575 states to 2575 states and 4788 transitions. [2024-11-28 02:59:53,193 INFO L78 Accepts]: Start accepts. Automaton has 2575 states and 4788 transitions. Word has length 158 [2024-11-28 02:59:53,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:53,194 INFO L471 AbstractCegarLoop]: Abstraction has 2575 states and 4788 transitions. [2024-11-28 02:59:53,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:59:53,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2575 states and 4788 transitions. [2024-11-28 02:59:53,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-28 02:59:53,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:53,198 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:53,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:59:53,199 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:59:53,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:53,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1025623230, now seen corresponding path program 1 times [2024-11-28 02:59:53,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:53,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250314024] [2024-11-28 02:59:53,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:53,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:53,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:53,661 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:59:53,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:53,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250314024] [2024-11-28 02:59:53,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250314024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:53,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:53,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:59:53,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130507048] [2024-11-28 02:59:53,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:53,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:59:53,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:53,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:59:53,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:59:53,666 INFO L87 Difference]: Start difference. First operand 2575 states and 4788 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:59:58,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:58,008 INFO L93 Difference]: Finished difference Result 2662 states and 4899 transitions. [2024-11-28 02:59:58,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:59:58,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 158 [2024-11-28 02:59:58,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:58,025 INFO L225 Difference]: With dead ends: 2662 [2024-11-28 02:59:58,025 INFO L226 Difference]: Without dead ends: 2662 [2024-11-28 02:59:58,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:59:58,026 INFO L435 NwaCegarLoop]: 2631 mSDtfsCounter, 5272 mSDsluCounter, 2645 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 1426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5773 SdHoareTripleChecker+Valid, 5276 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1426 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:58,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5773 Valid, 5276 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1426 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 02:59:58,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2024-11-28 02:59:58,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 1432. [2024-11-28 02:59:58,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 923 states have (on average 1.705308775731311) internal successors, (1574), 1425 states have internal predecessors, (1574), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-28 02:59:58,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2582 transitions. [2024-11-28 02:59:58,460 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2582 transitions. Word has length 158 [2024-11-28 02:59:58,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:58,460 INFO L471 AbstractCegarLoop]: Abstraction has 1432 states and 2582 transitions. [2024-11-28 02:59:58,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:59:58,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2582 transitions. [2024-11-28 02:59:58,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-28 02:59:58,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:58,466 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:58,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:59:58,467 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:59:58,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:58,469 INFO L85 PathProgramCache]: Analyzing trace with hash 2119089910, now seen corresponding path program 1 times [2024-11-28 02:59:58,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:58,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264779238] [2024-11-28 02:59:58,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:58,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:59,711 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:59:59,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:59,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264779238] [2024-11-28 02:59:59,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264779238] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:59:59,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502179749] [2024-11-28 02:59:59,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:59,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:59,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:59:59,719 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:59:59,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:00:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:00:00,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:00:00,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:00:00,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 03:00:00,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-28 03:00:00,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-28 03:00:00,637 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:00:00,637 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:00:00,947 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:00:00,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502179749] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:00:00,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:00:00,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 11 [2024-11-28 03:00:00,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28906866] [2024-11-28 03:00:00,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:00:00,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:00:00,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:00:00,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:00:00,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:00:00,952 INFO L87 Difference]: Start difference. First operand 1432 states and 2582 transitions. Second operand has 11 states, 11 states have (on average 22.818181818181817) internal successors, (251), 11 states have internal predecessors, (251), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:00:08,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:00:08,560 INFO L93 Difference]: Finished difference Result 4271 states and 7722 transitions. [2024-11-28 03:00:08,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:00:08,562 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 22.818181818181817) internal successors, (251), 11 states have internal predecessors, (251), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 168 [2024-11-28 03:00:08,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:00:08,583 INFO L225 Difference]: With dead ends: 4271 [2024-11-28 03:00:08,583 INFO L226 Difference]: Without dead ends: 4271 [2024-11-28 03:00:08,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 329 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:00:08,585 INFO L435 NwaCegarLoop]: 1977 mSDtfsCounter, 9015 mSDsluCounter, 8709 mSDsCounter, 0 mSdLazyCounter, 3600 mSolverCounterSat, 2011 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10021 SdHoareTripleChecker+Valid, 10686 SdHoareTripleChecker+Invalid, 5611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2011 IncrementalHoareTripleChecker+Valid, 3600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:00:08,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10021 Valid, 10686 Invalid, 5611 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2011 Valid, 3600 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-28 03:00:08,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4271 states. [2024-11-28 03:00:08,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4271 to 1787. [2024-11-28 03:00:08,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1787 states, 1274 states have (on average 1.6004709576138147) internal successors, (2039), 1776 states have internal predecessors, (2039), 508 states have call successors, (508), 4 states have call predecessors, (508), 3 states have return successors, (506), 7 states have call predecessors, (506), 506 states have call successors, (506) [2024-11-28 03:00:08,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1787 states to 1787 states and 3053 transitions. [2024-11-28 03:00:08,988 INFO L78 Accepts]: Start accepts. Automaton has 1787 states and 3053 transitions. Word has length 168 [2024-11-28 03:00:08,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:00:08,989 INFO L471 AbstractCegarLoop]: Abstraction has 1787 states and 3053 transitions. [2024-11-28 03:00:08,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.818181818181817) internal successors, (251), 11 states have internal predecessors, (251), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:00:08,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1787 states and 3053 transitions. [2024-11-28 03:00:08,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-11-28 03:00:08,998 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:00:08,998 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:00:09,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:00:09,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-28 03:00:09,203 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:00:09,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:00:09,205 INFO L85 PathProgramCache]: Analyzing trace with hash 185085564, now seen corresponding path program 1 times [2024-11-28 03:00:09,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:00:09,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980457011] [2024-11-28 03:00:09,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:00:09,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:00:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:00:14,702 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 464 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:00:14,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:00:14,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980457011] [2024-11-28 03:00:14,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980457011] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:00:14,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84937428] [2024-11-28 03:00:14,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:00:14,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:00:14,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:00:14,708 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:00:14,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:00:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:00:15,572 INFO L256 TraceCheckSpWp]: Trace formula consists of 1903 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:00:15,594 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:00:15,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 03:00:15,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-28 03:00:16,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-28 03:00:16,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-28 03:00:16,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-28 03:00:16,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-28 03:00:16,485 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 464 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:00:16,485 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:00:17,493 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 464 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:00:17,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84937428] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:00:17,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:00:17,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 8] total 20 [2024-11-28 03:00:17,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767421415] [2024-11-28 03:00:17,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:00:17,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 03:00:17,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:00:17,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 03:00:17,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=235, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:00:17,500 INFO L87 Difference]: Start difference. First operand 1787 states and 3053 transitions. Second operand has 20 states, 20 states have (on average 35.95) internal successors, (719), 20 states have internal predecessors, (719), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:00:36,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:00:36,822 INFO L93 Difference]: Finished difference Result 9821 states and 17842 transitions. [2024-11-28 03:00:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 03:00:36,823 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 35.95) internal successors, (719), 20 states have internal predecessors, (719), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 399 [2024-11-28 03:00:36,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:00:36,854 INFO L225 Difference]: With dead ends: 9821 [2024-11-28 03:00:36,854 INFO L226 Difference]: Without dead ends: 9821 [2024-11-28 03:00:36,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 817 GetRequests, 790 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=224, Invalid=426, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:00:36,855 INFO L435 NwaCegarLoop]: 1977 mSDtfsCounter, 20866 mSDsluCounter, 14638 mSDsCounter, 0 mSdLazyCounter, 7169 mSolverCounterSat, 4949 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23878 SdHoareTripleChecker+Valid, 16615 SdHoareTripleChecker+Invalid, 12118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4949 IncrementalHoareTripleChecker+Valid, 7169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:00:36,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23878 Valid, 16615 Invalid, 12118 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4949 Valid, 7169 Invalid, 0 Unknown, 0 Unchecked, 18.1s Time] [2024-11-28 03:00:36,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9821 states. [2024-11-28 03:00:38,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9821 to 2669. [2024-11-28 03:00:38,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2669 states, 2150 states have (on average 1.4897674418604652) internal successors, (3203), 2652 states have internal predecessors, (3203), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-28 03:00:38,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 4229 transitions. [2024-11-28 03:00:38,039 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 4229 transitions. Word has length 399 [2024-11-28 03:00:38,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:00:38,039 INFO L471 AbstractCegarLoop]: Abstraction has 2669 states and 4229 transitions. [2024-11-28 03:00:38,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 35.95) internal successors, (719), 20 states have internal predecessors, (719), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:00:38,040 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 4229 transitions. [2024-11-28 03:00:38,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 862 [2024-11-28 03:00:38,091 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:00:38,092 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:00:38,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:00:38,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 03:00:38,296 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:00:38,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:00:38,298 INFO L85 PathProgramCache]: Analyzing trace with hash 228720956, now seen corresponding path program 2 times [2024-11-28 03:00:38,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:00:38,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44796890] [2024-11-28 03:00:38,298 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:00:38,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:00:38,934 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:00:38,934 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:00:39,245 INFO L134 CoverageAnalysis]: Checked inductivity of 3471 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3471 trivial. 0 not checked. [2024-11-28 03:00:39,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:00:39,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44796890] [2024-11-28 03:00:39,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44796890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:00:39,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:00:39,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:00:39,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621140334] [2024-11-28 03:00:39,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:00:39,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:00:39,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:00:39,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:00:39,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:00:39,248 INFO L87 Difference]: Start difference. First operand 2669 states and 4229 transitions. Second operand has 8 states, 8 states have (on average 20.25) internal successors, (162), 8 states have internal predecessors, (162), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:00:40,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:00:40,165 INFO L93 Difference]: Finished difference Result 2722 states and 4294 transitions. [2024-11-28 03:00:40,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:00:40,166 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 8 states have internal predecessors, (162), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 861 [2024-11-28 03:00:40,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:00:40,176 INFO L225 Difference]: With dead ends: 2722 [2024-11-28 03:00:40,176 INFO L226 Difference]: Without dead ends: 2722 [2024-11-28 03:00:40,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:00:40,177 INFO L435 NwaCegarLoop]: 2430 mSDtfsCounter, 55 mSDsluCounter, 9263 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 11693 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:00:40,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 11693 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:00:40,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2024-11-28 03:00:40,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 2713. [2024-11-28 03:00:40,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2713 states, 2194 states have (on average 1.4840474020054695) internal successors, (3256), 2696 states have internal predecessors, (3256), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-28 03:00:40,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2713 states to 2713 states and 4282 transitions. [2024-11-28 03:00:40,366 INFO L78 Accepts]: Start accepts. Automaton has 2713 states and 4282 transitions. Word has length 861 [2024-11-28 03:00:40,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:00:40,367 INFO L471 AbstractCegarLoop]: Abstraction has 2713 states and 4282 transitions. [2024-11-28 03:00:40,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 8 states have internal predecessors, (162), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:00:40,368 INFO L276 IsEmpty]: Start isEmpty. Operand 2713 states and 4282 transitions. [2024-11-28 03:00:40,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 863 [2024-11-28 03:00:40,397 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:00:40,398 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:00:40,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:00:40,398 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:00:40,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:00:40,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1781517370, now seen corresponding path program 1 times [2024-11-28 03:00:40,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:00:40,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815997892] [2024-11-28 03:00:40,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:00:40,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:00:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:00:46,422 INFO L134 CoverageAnalysis]: Checked inductivity of 3471 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3471 trivial. 0 not checked. [2024-11-28 03:00:46,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:00:46,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815997892] [2024-11-28 03:00:46,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815997892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:00:46,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:00:46,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:00:46,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986828345] [2024-11-28 03:00:46,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:00:46,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:00:46,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:00:46,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:00:46,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:00:46,425 INFO L87 Difference]: Start difference. First operand 2713 states and 4282 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:00:47,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:00:47,305 INFO L93 Difference]: Finished difference Result 2719 states and 4289 transitions. [2024-11-28 03:00:47,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:00:47,305 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 862 [2024-11-28 03:00:47,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:00:47,314 INFO L225 Difference]: With dead ends: 2719 [2024-11-28 03:00:47,314 INFO L226 Difference]: Without dead ends: 2719 [2024-11-28 03:00:47,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:00:47,315 INFO L435 NwaCegarLoop]: 2437 mSDtfsCounter, 22 mSDsluCounter, 9185 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 11622 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:00:47,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 11622 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:00:47,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2024-11-28 03:00:47,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2717. [2024-11-28 03:00:47,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2717 states, 2198 states have (on average 1.483621474067334) internal successors, (3261), 2700 states have internal predecessors, (3261), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-28 03:00:47,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 4287 transitions. [2024-11-28 03:00:47,526 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 4287 transitions. Word has length 862 [2024-11-28 03:00:47,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:00:47,528 INFO L471 AbstractCegarLoop]: Abstraction has 2717 states and 4287 transitions. [2024-11-28 03:00:47,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:00:47,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 4287 transitions. [2024-11-28 03:00:47,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 863 [2024-11-28 03:00:47,538 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:00:47,538 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:00:47,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:00:47,539 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:00:47,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:00:47,540 INFO L85 PathProgramCache]: Analyzing trace with hash 555629658, now seen corresponding path program 1 times [2024-11-28 03:00:47,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:00:47,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714809976] [2024-11-28 03:00:47,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:00:47,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:00:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:00:51,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3471 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3471 trivial. 0 not checked. [2024-11-28 03:00:51,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:00:51,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714809976] [2024-11-28 03:00:51,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714809976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:00:51,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:00:51,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:00:51,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185172836] [2024-11-28 03:00:51,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:00:51,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:00:51,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:00:51,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:00:51,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:00:51,400 INFO L87 Difference]: Start difference. First operand 2717 states and 4287 transitions. Second operand has 8 states, 8 states have (on average 20.375) internal successors, (163), 8 states have internal predecessors, (163), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:00:52,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:00:52,304 INFO L93 Difference]: Finished difference Result 2729 states and 4303 transitions. [2024-11-28 03:00:52,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:00:52,305 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 8 states have internal predecessors, (163), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 862 [2024-11-28 03:00:52,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:00:52,316 INFO L225 Difference]: With dead ends: 2729 [2024-11-28 03:00:52,316 INFO L226 Difference]: Without dead ends: 2729 [2024-11-28 03:00:52,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:00:52,317 INFO L435 NwaCegarLoop]: 2430 mSDtfsCounter, 26 mSDsluCounter, 11522 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 13952 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:00:52,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 13952 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:00:52,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2024-11-28 03:00:52,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2718. [2024-11-28 03:00:52,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2718 states, 2199 states have (on average 1.483856298317417) internal successors, (3263), 2701 states have internal predecessors, (3263), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-28 03:00:52,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2718 states to 2718 states and 4289 transitions. [2024-11-28 03:00:52,533 INFO L78 Accepts]: Start accepts. Automaton has 2718 states and 4289 transitions. Word has length 862 [2024-11-28 03:00:52,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:00:52,534 INFO L471 AbstractCegarLoop]: Abstraction has 2718 states and 4289 transitions. [2024-11-28 03:00:52,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 8 states have internal predecessors, (163), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:00:52,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2718 states and 4289 transitions. [2024-11-28 03:00:52,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 864 [2024-11-28 03:00:52,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:00:52,544 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:00:52,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:00:52,544 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:00:52,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:00:52,545 INFO L85 PathProgramCache]: Analyzing trace with hash -237282200, now seen corresponding path program 1 times [2024-11-28 03:00:52,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:00:52,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118615690] [2024-11-28 03:00:52,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:00:52,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:00:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:00:56,313 INFO L134 CoverageAnalysis]: Checked inductivity of 3471 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3471 trivial. 0 not checked. [2024-11-28 03:00:56,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:00:56,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118615690] [2024-11-28 03:00:56,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118615690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:00:56,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:00:56,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:00:56,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722559628] [2024-11-28 03:00:56,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:00:56,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:00:56,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:00:56,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:00:56,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:00:56,318 INFO L87 Difference]: Start difference. First operand 2718 states and 4289 transitions. Second operand has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 9 states have internal predecessors, (164), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:00:57,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:00:57,541 INFO L93 Difference]: Finished difference Result 2733 states and 4308 transitions. [2024-11-28 03:00:57,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:00:57,542 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 9 states have internal predecessors, (164), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 863 [2024-11-28 03:00:57,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:00:57,552 INFO L225 Difference]: With dead ends: 2733 [2024-11-28 03:00:57,552 INFO L226 Difference]: Without dead ends: 2733 [2024-11-28 03:00:57,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:00:57,554 INFO L435 NwaCegarLoop]: 2434 mSDtfsCounter, 34 mSDsluCounter, 16261 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 18695 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:00:57,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 18695 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:00:57,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2733 states. [2024-11-28 03:00:57,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2733 to 2726. [2024-11-28 03:00:57,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2726 states, 2207 states have (on average 1.4830086089714545) internal successors, (3273), 2709 states have internal predecessors, (3273), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-28 03:00:57,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 4299 transitions. [2024-11-28 03:00:57,775 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 4299 transitions. Word has length 863 [2024-11-28 03:00:57,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:00:57,777 INFO L471 AbstractCegarLoop]: Abstraction has 2726 states and 4299 transitions. [2024-11-28 03:00:57,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 9 states have internal predecessors, (164), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:00:57,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 4299 transitions. [2024-11-28 03:00:57,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 865 [2024-11-28 03:00:57,793 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:00:57,794 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:00:57,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:00:57,794 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:00:57,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:00:57,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1642021123, now seen corresponding path program 1 times [2024-11-28 03:00:57,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:00:57,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408611009] [2024-11-28 03:00:57,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:00:57,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:00:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:01:11,752 INFO L134 CoverageAnalysis]: Checked inductivity of 3471 backedges. 0 proven. 3467 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:01:11,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:01:11,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408611009] [2024-11-28 03:01:11,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408611009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:01:11,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503179784] [2024-11-28 03:01:11,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:01:11,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:01:11,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:01:11,756 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:01:11,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:01:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:01:13,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 4165 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 03:01:13,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:01:13,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 03:01:14,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-28 03:01:14,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-28 03:01:14,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-28 03:01:14,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-28 03:01:14,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-28 03:01:15,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-28 03:01:15,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-28 03:01:15,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-28 03:01:15,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-28 03:01:15,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-28 03:01:15,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-28 03:01:15,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3471 backedges. 0 proven. 3467 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:01:15,793 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:01:17,880 INFO L134 CoverageAnalysis]: Checked inductivity of 3471 backedges. 0 proven. 3467 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:01:17,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503179784] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:01:17,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:01:17,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 15, 14] total 38 [2024-11-28 03:01:17,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005929118] [2024-11-28 03:01:17,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:01:17,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-28 03:01:17,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:01:17,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-28 03:01:17,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=571, Invalid=835, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 03:01:17,887 INFO L87 Difference]: Start difference. First operand 2726 states and 4299 transitions. Second operand has 38 states, 38 states have (on average 43.63157894736842) internal successors, (1658), 38 states have internal predecessors, (1658), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:02:04,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:04,878 INFO L93 Difference]: Finished difference Result 19328 states and 34520 transitions. [2024-11-28 03:02:04,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-28 03:02:04,879 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 43.63157894736842) internal successors, (1658), 38 states have internal predecessors, (1658), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 864 [2024-11-28 03:02:04,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:04,951 INFO L225 Difference]: With dead ends: 19328 [2024-11-28 03:02:04,951 INFO L226 Difference]: Without dead ends: 19328 [2024-11-28 03:02:04,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1768 GetRequests, 1717 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 800 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=872, Invalid=1578, Unknown=0, NotChecked=0, Total=2450 [2024-11-28 03:02:04,952 INFO L435 NwaCegarLoop]: 1977 mSDtfsCounter, 57552 mSDsluCounter, 30617 mSDsCounter, 0 mSdLazyCounter, 13843 mSolverCounterSat, 12062 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63576 SdHoareTripleChecker+Valid, 32594 SdHoareTripleChecker+Invalid, 25905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 12062 IncrementalHoareTripleChecker+Valid, 13843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:04,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63576 Valid, 32594 Invalid, 25905 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [12062 Valid, 13843 Invalid, 0 Unknown, 0 Unchecked, 43.1s Time] [2024-11-28 03:02:04,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19328 states. [2024-11-28 03:02:07,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19328 to 4490. [2024-11-28 03:02:07,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4490 states, 3959 states have (on average 1.4147511997979287) internal successors, (5601), 4461 states have internal predecessors, (5601), 526 states have call successors, (526), 4 states have call predecessors, (526), 3 states have return successors, (524), 25 states have call predecessors, (524), 524 states have call successors, (524) [2024-11-28 03:02:07,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4490 states to 4490 states and 6651 transitions. [2024-11-28 03:02:07,237 INFO L78 Accepts]: Start accepts. Automaton has 4490 states and 6651 transitions. Word has length 864 [2024-11-28 03:02:07,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:07,238 INFO L471 AbstractCegarLoop]: Abstraction has 4490 states and 6651 transitions. [2024-11-28 03:02:07,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 43.63157894736842) internal successors, (1658), 38 states have internal predecessors, (1658), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:02:07,239 INFO L276 IsEmpty]: Start isEmpty. Operand 4490 states and 6651 transitions. [2024-11-28 03:02:07,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1789 [2024-11-28 03:02:07,268 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:07,269 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:07,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:02:07,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d930d54-de61-4357-b137-3b1397e796f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 03:02:07,470 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:02:07,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:07,475 INFO L85 PathProgramCache]: Analyzing trace with hash -2032625283, now seen corresponding path program 2 times [2024-11-28 03:02:07,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:07,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449600868] [2024-11-28 03:02:07,475 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:02:07,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:08,337 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:02:08,337 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:02:09,003 INFO L134 CoverageAnalysis]: Checked inductivity of 17793 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17793 trivial. 0 not checked. [2024-11-28 03:02:09,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:09,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449600868] [2024-11-28 03:02:09,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449600868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:09,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:09,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:02:09,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148933276] [2024-11-28 03:02:09,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:09,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:02:09,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:09,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:02:09,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:02:09,008 INFO L87 Difference]: Start difference. First operand 4490 states and 6651 transitions. Second operand has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 13 states have internal predecessors, (165), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:02:12,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:02:12,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:12,846 INFO L93 Difference]: Finished difference Result 4564 states and 6757 transitions. [2024-11-28 03:02:12,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:02:12,847 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 13 states have internal predecessors, (165), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1788 [2024-11-28 03:02:12,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:12,860 INFO L225 Difference]: With dead ends: 4564 [2024-11-28 03:02:12,860 INFO L226 Difference]: Without dead ends: 4564 [2024-11-28 03:02:12,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:02:12,861 INFO L435 NwaCegarLoop]: 2437 mSDtfsCounter, 155 mSDsluCounter, 18828 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 21265 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:12,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 21265 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-28 03:02:12,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4564 states. [2024-11-28 03:02:13,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4564 to 4496. [2024-11-28 03:02:13,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4496 states, 3965 states have (on average 1.4146279949558638) internal successors, (5609), 4467 states have internal predecessors, (5609), 526 states have call successors, (526), 4 states have call predecessors, (526), 3 states have return successors, (524), 25 states have call predecessors, (524), 524 states have call successors, (524) [2024-11-28 03:02:13,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4496 states to 4496 states and 6659 transitions. [2024-11-28 03:02:13,087 INFO L78 Accepts]: Start accepts. Automaton has 4496 states and 6659 transitions. Word has length 1788 [2024-11-28 03:02:13,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:13,089 INFO L471 AbstractCegarLoop]: Abstraction has 4496 states and 6659 transitions. [2024-11-28 03:02:13,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 13 states have internal predecessors, (165), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:02:13,089 INFO L276 IsEmpty]: Start isEmpty. Operand 4496 states and 6659 transitions. [2024-11-28 03:02:13,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1789 [2024-11-28 03:02:13,119 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:13,119 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:13,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:02:13,120 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:02:13,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:13,121 INFO L85 PathProgramCache]: Analyzing trace with hash -537982559, now seen corresponding path program 1 times [2024-11-28 03:02:13,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:13,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793136830] [2024-11-28 03:02:13,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:13,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:21,495 INFO L134 CoverageAnalysis]: Checked inductivity of 17793 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17793 trivial. 0 not checked. [2024-11-28 03:02:21,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:21,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793136830] [2024-11-28 03:02:21,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793136830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:21,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:21,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:02:21,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884256983] [2024-11-28 03:02:21,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:21,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:02:21,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:21,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:02:21,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:02:21,499 INFO L87 Difference]: Start difference. First operand 4496 states and 6659 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:02:22,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:22,309 INFO L93 Difference]: Finished difference Result 4500 states and 6663 transitions. [2024-11-28 03:02:22,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:02:22,309 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1788 [2024-11-28 03:02:22,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:22,329 INFO L225 Difference]: With dead ends: 4500 [2024-11-28 03:02:22,329 INFO L226 Difference]: Without dead ends: 4500 [2024-11-28 03:02:22,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:02:22,330 INFO L435 NwaCegarLoop]: 2441 mSDtfsCounter, 13 mSDsluCounter, 9215 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 11656 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:22,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 11656 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:02:22,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4500 states. [2024-11-28 03:02:22,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4500 to 4499. [2024-11-28 03:02:22,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4499 states, 3968 states have (on average 1.4143145161290323) internal successors, (5612), 4470 states have internal predecessors, (5612), 526 states have call successors, (526), 4 states have call predecessors, (526), 3 states have return successors, (524), 25 states have call predecessors, (524), 524 states have call successors, (524) [2024-11-28 03:02:22,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4499 states to 4499 states and 6662 transitions. [2024-11-28 03:02:22,765 INFO L78 Accepts]: Start accepts. Automaton has 4499 states and 6662 transitions. Word has length 1788 [2024-11-28 03:02:22,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:22,767 INFO L471 AbstractCegarLoop]: Abstraction has 4499 states and 6662 transitions. [2024-11-28 03:02:22,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:02:22,768 INFO L276 IsEmpty]: Start isEmpty. Operand 4499 states and 6662 transitions. [2024-11-28 03:02:22,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1790 [2024-11-28 03:02:22,837 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:22,837 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:22,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:02:22,838 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:02:22,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:22,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1335628669, now seen corresponding path program 1 times [2024-11-28 03:02:22,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:22,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820666211] [2024-11-28 03:02:22,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:22,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat