./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd --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 df25530cebe2f8dbf5c0f407e5ccf4cecba61e3d44431cb17b70a57441db534c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:14:07,995 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:14:08,083 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-13 15:14:08,090 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:14:08,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:14:08,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:14:08,131 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:14:08,131 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:14:08,132 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:14:08,132 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:14:08,133 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:14:08,133 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:14:08,134 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:14:08,134 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:14:08,134 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:14:08,135 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:14:08,135 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:14:08,135 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:14:08,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:14:08,135 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:14:08,136 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:14:08,136 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:14:08,136 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 15:14:08,136 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 15:14:08,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:14:08,136 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:14:08,136 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:14:08,136 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:14:08,137 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:14:08,137 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:14:08,137 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:14:08,137 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:14:08,137 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:14:08,137 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:14:08,137 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:14:08,137 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:14:08,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:14:08,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:14:08,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:14:08,139 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:14:08,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:14:08,139 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:14:08,139 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:14:08,139 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:14:08,139 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:14:08,139 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_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd 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 -> df25530cebe2f8dbf5c0f407e5ccf4cecba61e3d44431cb17b70a57441db534c [2024-11-13 15:14:08,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:14:08,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:14:08,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:14:08,482 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:14:08,482 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:14:08,485 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i Unable to find full path for "g++" [2024-11-13 15:14:10,421 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:14:10,800 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:14:10,801 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i [2024-11-13 15:14:10,829 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/data/d2a6e91f4/abcc14161141475e9d677ce99c4e36ca/FLAG61831bc39 [2024-11-13 15:14:10,853 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/data/d2a6e91f4/abcc14161141475e9d677ce99c4e36ca [2024-11-13 15:14:10,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:14:10,857 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:14:10,859 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:14:10,859 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:14:10,864 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:14:10,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:14:10" (1/1) ... [2024-11-13 15:14:10,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c892b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:10, skipping insertion in model container [2024-11-13 15:14:10,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:14:10" (1/1) ... [2024-11-13 15:14:10,927 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:14:11,420 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:11,478 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:11,482 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:11,486 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:11,497 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:11,531 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:11,534 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:11,537 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:11,543 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:11,575 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:11,575 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:11,578 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:11,578 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:11,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:14:11,599 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:14:11,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:14:11,792 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:14:11,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11 WrapperNode [2024-11-13 15:14:11,792 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:14:11,795 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:14:11,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:14:11,795 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:14:11,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:11,852 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:11,975 INFO L138 Inliner]: procedures = 177, calls = 375, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1990 [2024-11-13 15:14:11,976 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:14:11,977 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:14:11,977 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:14:11,977 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:14:11,988 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:11,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:12,011 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:12,214 INFO L175 MemorySlicer]: Split 349 memory accesses to 3 slices as follows [2, 323, 24]. 93 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 83 writes are split as follows [0, 82, 1]. [2024-11-13 15:14:12,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:12,215 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:12,301 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:12,336 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:12,349 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:12,357 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:12,375 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:14:12,376 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:14:12,376 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:14:12,376 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:14:12,377 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:12,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:14:12,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:14:12,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:14:12,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:14:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-13 15:14:12,444 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-13 15:14:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 15:14:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 15:14:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 15:14:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 15:14:12,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 15:14:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 15:14:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 15:14:12,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 15:14:12,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-13 15:14:12,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-13 15:14:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-13 15:14:12,447 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-13 15:14:12,447 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-13 15:14:12,447 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-13 15:14:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 15:14:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:14:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 15:14:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 15:14:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 15:14:12,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 15:14:12,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 15:14:12,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 15:14:12,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 15:14:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 15:14:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:14:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 15:14:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 15:14:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:14:12,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:14:12,726 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:14:12,728 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:14:15,380 INFO L? ?]: Removed 485 outVars from TransFormulas that were not future-live. [2024-11-13 15:14:15,380 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:14:15,417 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:14:15,420 INFO L316 CfgBuilder]: Removed 83 assume(true) statements. [2024-11-13 15:14:15,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:14:15 BoogieIcfgContainer [2024-11-13 15:14:15,421 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:14:15,424 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:14:15,427 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:14:15,433 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:14:15,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:14:10" (1/3) ... [2024-11-13 15:14:15,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2693212a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:14:15, skipping insertion in model container [2024-11-13 15:14:15,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (2/3) ... [2024-11-13 15:14:15,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2693212a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:14:15, skipping insertion in model container [2024-11-13 15:14:15,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:14:15" (3/3) ... [2024-11-13 15:14:15,436 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-1.i [2024-11-13 15:14:15,453 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:14:15,455 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test5-1.i that has 6 procedures, 581 locations, 1 initial locations, 49 loop locations, and 2 error locations. [2024-11-13 15:14:15,531 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:14:15,549 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;@7d3c46dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:14:15,549 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 15:14:15,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 573 states, 554 states have (on average 1.6245487364620939) internal successors, (900), 563 states have internal predecessors, (900), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-13 15:14:15,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 15:14:15,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:15,565 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:15,566 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:14:15,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:15,572 INFO L85 PathProgramCache]: Analyzing trace with hash -919942558, now seen corresponding path program 1 times [2024-11-13 15:14:15,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:15,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915595278] [2024-11-13 15:14:15,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:15,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:15,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:15,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:15,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915595278] [2024-11-13 15:14:15,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915595278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:15,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:15,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:14:15,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54224594] [2024-11-13 15:14:15,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:15,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:14:15,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:15,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:14:15,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:14:15,792 INFO L87 Difference]: Start difference. First operand has 573 states, 554 states have (on average 1.6245487364620939) internal successors, (900), 563 states have internal predecessors, (900), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) 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) [2024-11-13 15:14:15,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:15,877 INFO L93 Difference]: Finished difference Result 571 states and 831 transitions. [2024-11-13 15:14:15,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:14:15,880 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 [2024-11-13 15:14:15,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:15,901 INFO L225 Difference]: With dead ends: 571 [2024-11-13 15:14:15,901 INFO L226 Difference]: Without dead ends: 569 [2024-11-13 15:14:15,903 INFO L431 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 [2024-11-13 15:14:15,908 INFO L432 NwaCegarLoop]: 831 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, 831 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 [2024-11-13 15:14:15,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:14:15,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-11-13 15:14:15,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2024-11-13 15:14:15,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 552 states have (on average 1.4583333333333333) internal successors, (805), 559 states have internal predecessors, (805), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:14:15,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 829 transitions. [2024-11-13 15:14:15,985 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 829 transitions. Word has length 7 [2024-11-13 15:14:15,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:15,985 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 829 transitions. [2024-11-13 15:14:15,985 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) [2024-11-13 15:14:15,986 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 829 transitions. [2024-11-13 15:14:15,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 15:14:15,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:15,986 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:15,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:14:15,987 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:14:15,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:15,987 INFO L85 PathProgramCache]: Analyzing trace with hash 2051008910, now seen corresponding path program 1 times [2024-11-13 15:14:15,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:15,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466947980] [2024-11-13 15:14:15,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:15,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:16,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:16,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:16,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466947980] [2024-11-13 15:14:16,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466947980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:16,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:16,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:14:16,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522326102] [2024-11-13 15:14:16,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:16,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:14:16,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:16,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:16,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:16,099 INFO L87 Difference]: Start difference. First operand 569 states and 829 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2024-11-13 15:14:16,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:16,227 INFO L93 Difference]: Finished difference Result 1120 states and 1640 transitions. [2024-11-13 15:14:16,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:16,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 [2024-11-13 15:14:16,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:16,240 INFO L225 Difference]: With dead ends: 1120 [2024-11-13 15:14:16,244 INFO L226 Difference]: Without dead ends: 1120 [2024-11-13 15:14:16,245 INFO L431 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 [2024-11-13 15:14:16,245 INFO L432 NwaCegarLoop]: 873 mSDtfsCounter, 786 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:16,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 1693 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:14:16,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2024-11-13 15:14:16,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 571. [2024-11-13 15:14:16,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 554 states have (on average 1.4566787003610109) internal successors, (807), 561 states have internal predecessors, (807), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:14:16,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 831 transitions. [2024-11-13 15:14:16,311 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 831 transitions. Word has length 7 [2024-11-13 15:14:16,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:16,311 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 831 transitions. [2024-11-13 15:14:16,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2024-11-13 15:14:16,311 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 831 transitions. [2024-11-13 15:14:16,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-13 15:14:16,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:16,321 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:16,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:14:16,321 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:14:16,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:16,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1409378319, now seen corresponding path program 1 times [2024-11-13 15:14:16,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:16,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905009811] [2024-11-13 15:14:16,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:16,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:17,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:17,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:17,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905009811] [2024-11-13 15:14:17,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905009811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:17,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:17,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:14:17,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6502152] [2024-11-13 15:14:17,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:17,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:14:17,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:17,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:14:17,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:14:17,426 INFO L87 Difference]: Start difference. First operand 571 states and 831 transitions. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:17,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:17,575 INFO L93 Difference]: Finished difference Result 574 states and 827 transitions. [2024-11-13 15:14:17,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:14:17,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2024-11-13 15:14:17,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:17,583 INFO L225 Difference]: With dead ends: 574 [2024-11-13 15:14:17,583 INFO L226 Difference]: Without dead ends: 574 [2024-11-13 15:14:17,584 INFO L431 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 [2024-11-13 15:14:17,584 INFO L432 NwaCegarLoop]: 801 mSDtfsCounter, 105 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:17,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 2310 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:14:17,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-11-13 15:14:17,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 571. [2024-11-13 15:14:17,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 554 states have (on average 1.444043321299639) internal successors, (800), 561 states have internal predecessors, (800), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:14:17,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 824 transitions. [2024-11-13 15:14:17,622 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 824 transitions. Word has length 210 [2024-11-13 15:14:17,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:17,623 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 824 transitions. [2024-11-13 15:14:17,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:17,624 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 824 transitions. [2024-11-13 15:14:17,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-13 15:14:17,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:17,639 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:17,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:14:17,640 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:14:17,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:17,641 INFO L85 PathProgramCache]: Analyzing trace with hash -68236925, now seen corresponding path program 1 times [2024-11-13 15:14:17,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:17,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56190707] [2024-11-13 15:14:17,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:17,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:18,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:18,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:18,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56190707] [2024-11-13 15:14:18,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56190707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:18,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:18,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:14:18,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589182964] [2024-11-13 15:14:18,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:18,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:14:18,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:18,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:18,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:18,109 INFO L87 Difference]: Start difference. First operand 571 states and 824 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:18,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:18,169 INFO L93 Difference]: Finished difference Result 700 states and 1012 transitions. [2024-11-13 15:14:18,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:18,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2024-11-13 15:14:18,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:18,175 INFO L225 Difference]: With dead ends: 700 [2024-11-13 15:14:18,175 INFO L226 Difference]: Without dead ends: 700 [2024-11-13 15:14:18,175 INFO L431 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 [2024-11-13 15:14:18,176 INFO L432 NwaCegarLoop]: 821 mSDtfsCounter, 134 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1635 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:18,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1635 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:14:18,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-13 15:14:18,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2024-11-13 15:14:18,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 683 states have (on average 1.4465592972181551) internal successors, (988), 690 states have internal predecessors, (988), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:14:18,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1012 transitions. [2024-11-13 15:14:18,204 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1012 transitions. Word has length 210 [2024-11-13 15:14:18,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:18,204 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 1012 transitions. [2024-11-13 15:14:18,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:18,205 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1012 transitions. [2024-11-13 15:14:18,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-13 15:14:18,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:18,212 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:18,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:14:18,212 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:14:18,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:18,212 INFO L85 PathProgramCache]: Analyzing trace with hash -744802492, now seen corresponding path program 1 times [2024-11-13 15:14:18,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:18,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85346060] [2024-11-13 15:14:18,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:18,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:18,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:14:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:18,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 15:14:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:18,848 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:14:18,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:18,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85346060] [2024-11-13 15:14:18,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85346060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:18,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:18,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:14:18,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907435873] [2024-11-13 15:14:18,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:18,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:14:18,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:18,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:14:18,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:14:18,854 INFO L87 Difference]: Start difference. First operand 700 states and 1012 transitions. Second operand has 5 states, 5 states have (on average 43.4) internal successors, (217), 4 states have internal predecessors, (217), 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) [2024-11-13 15:14:19,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:19,547 INFO L93 Difference]: Finished difference Result 706 states and 1017 transitions. [2024-11-13 15:14:19,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:14:19,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.4) internal successors, (217), 4 states have internal predecessors, (217), 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 225 [2024-11-13 15:14:19,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:19,554 INFO L225 Difference]: With dead ends: 706 [2024-11-13 15:14:19,555 INFO L226 Difference]: Without dead ends: 706 [2024-11-13 15:14:19,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:14:19,556 INFO L432 NwaCegarLoop]: 786 mSDtfsCounter, 115 mSDsluCounter, 2146 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 2932 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:19,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 2932 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:14:19,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-11-13 15:14:19,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 700. [2024-11-13 15:14:19,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 683 states have (on average 1.4363103953147878) internal successors, (981), 690 states have internal predecessors, (981), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:14:19,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1005 transitions. [2024-11-13 15:14:19,584 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1005 transitions. Word has length 225 [2024-11-13 15:14:19,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:19,585 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 1005 transitions. [2024-11-13 15:14:19,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.4) internal successors, (217), 4 states have internal predecessors, (217), 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) [2024-11-13 15:14:19,586 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1005 transitions. [2024-11-13 15:14:19,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-13 15:14:19,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:19,593 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:19,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:14:19,593 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:14:19,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:19,594 INFO L85 PathProgramCache]: Analyzing trace with hash 513312976, now seen corresponding path program 1 times [2024-11-13 15:14:19,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:19,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420819158] [2024-11-13 15:14:19,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:19,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:20,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:14:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:20,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 15:14:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:20,060 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:14:20,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:20,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420819158] [2024-11-13 15:14:20,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420819158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:20,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:20,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:14:20,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902246581] [2024-11-13 15:14:20,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:20,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:14:20,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:20,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:14:20,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:14:20,063 INFO L87 Difference]: Start difference. First operand 700 states and 1005 transitions. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 3 states have internal predecessors, (217), 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) [2024-11-13 15:14:20,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:20,737 INFO L93 Difference]: Finished difference Result 709 states and 1020 transitions. [2024-11-13 15:14:20,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:14:20,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 3 states have internal predecessors, (217), 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 225 [2024-11-13 15:14:20,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:20,741 INFO L225 Difference]: With dead ends: 709 [2024-11-13 15:14:20,741 INFO L226 Difference]: Without dead ends: 709 [2024-11-13 15:14:20,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:14:20,742 INFO L432 NwaCegarLoop]: 801 mSDtfsCounter, 11 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2269 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:20,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2269 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:14:20,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2024-11-13 15:14:20,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 706. [2024-11-13 15:14:20,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 689 states have (on average 1.432510885341074) internal successors, (987), 696 states have internal predecessors, (987), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:14:20,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 1011 transitions. [2024-11-13 15:14:20,768 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 1011 transitions. Word has length 225 [2024-11-13 15:14:20,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:20,769 INFO L471 AbstractCegarLoop]: Abstraction has 706 states and 1011 transitions. [2024-11-13 15:14:20,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 3 states have internal predecessors, (217), 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) [2024-11-13 15:14:20,769 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 1011 transitions. [2024-11-13 15:14:20,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-13 15:14:20,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:20,784 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:20,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:14:20,785 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:14:20,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:20,785 INFO L85 PathProgramCache]: Analyzing trace with hash -2134291378, now seen corresponding path program 1 times [2024-11-13 15:14:20,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:20,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512697267] [2024-11-13 15:14:20,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:20,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:21,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:14:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:21,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 15:14:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:21,235 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:14:21,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:21,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512697267] [2024-11-13 15:14:21,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512697267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:21,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:21,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:14:21,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170997942] [2024-11-13 15:14:21,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:21,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:14:21,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:21,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:14:21,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:14:21,239 INFO L87 Difference]: Start difference. First operand 706 states and 1011 transitions. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 3 states have internal predecessors, (217), 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) [2024-11-13 15:14:22,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:22,579 INFO L93 Difference]: Finished difference Result 1052 states and 1522 transitions. [2024-11-13 15:14:22,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:14:22,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 3 states have internal predecessors, (217), 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 225 [2024-11-13 15:14:22,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:22,585 INFO L225 Difference]: With dead ends: 1052 [2024-11-13 15:14:22,585 INFO L226 Difference]: Without dead ends: 1052 [2024-11-13 15:14:22,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:14:22,586 INFO L432 NwaCegarLoop]: 1000 mSDtfsCounter, 543 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 2678 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:22,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 2678 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 15:14:22,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2024-11-13 15:14:22,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1045. [2024-11-13 15:14:22,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 1020 states have (on average 1.438235294117647) internal successors, (1467), 1032 states have internal predecessors, (1467), 21 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 15:14:22,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1507 transitions. [2024-11-13 15:14:22,619 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1507 transitions. Word has length 225 [2024-11-13 15:14:22,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:22,619 INFO L471 AbstractCegarLoop]: Abstraction has 1045 states and 1507 transitions. [2024-11-13 15:14:22,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 3 states have internal predecessors, (217), 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) [2024-11-13 15:14:22,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1507 transitions. [2024-11-13 15:14:22,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-13 15:14:22,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:22,624 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:22,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:14:22,624 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:14:22,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:22,625 INFO L85 PathProgramCache]: Analyzing trace with hash -124450017, now seen corresponding path program 1 times [2024-11-13 15:14:22,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:22,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557561238] [2024-11-13 15:14:22,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:22,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:23,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:14:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:23,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 15:14:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:23,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-13 15:14:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:23,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-13 15:14:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:23,191 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 15:14:23,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:23,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557561238] [2024-11-13 15:14:23,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557561238] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:14:23,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974196854] [2024-11-13 15:14:23,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:23,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:14:23,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:14:23,195 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:14:23,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:14:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:23,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 1199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:14:23,891 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:14:23,950 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-13 15:14:23,954 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:14:23,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974196854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:23,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:14:23,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-13 15:14:23,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410269453] [2024-11-13 15:14:23,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:23,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:14:23,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:23,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:23,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:14:23,958 INFO L87 Difference]: Start difference. First operand 1045 states and 1507 transitions. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 15:14:24,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:24,057 INFO L93 Difference]: Finished difference Result 1085 states and 1547 transitions. [2024-11-13 15:14:24,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:24,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 240 [2024-11-13 15:14:24,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:24,063 INFO L225 Difference]: With dead ends: 1085 [2024-11-13 15:14:24,063 INFO L226 Difference]: Without dead ends: 1085 [2024-11-13 15:14:24,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:14:24,064 INFO L432 NwaCegarLoop]: 795 mSDtfsCounter, 8 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:24,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1575 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:14:24,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2024-11-13 15:14:24,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 1085. [2024-11-13 15:14:24,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1085 states, 1060 states have (on average 1.4216981132075472) internal successors, (1507), 1072 states have internal predecessors, (1507), 21 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 15:14:24,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1547 transitions. [2024-11-13 15:14:24,099 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1547 transitions. Word has length 240 [2024-11-13 15:14:24,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:24,100 INFO L471 AbstractCegarLoop]: Abstraction has 1085 states and 1547 transitions. [2024-11-13 15:14:24,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 15:14:24,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1547 transitions. [2024-11-13 15:14:24,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-13 15:14:24,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:24,105 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:24,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:14:24,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:14:24,305 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:14:24,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:24,306 INFO L85 PathProgramCache]: Analyzing trace with hash -372596511, now seen corresponding path program 1 times [2024-11-13 15:14:24,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:24,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942638180] [2024-11-13 15:14:24,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:24,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:24,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:14:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:24,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 15:14:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:24,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-13 15:14:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:24,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-13 15:14:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:24,788 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 15:14:24,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:24,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942638180] [2024-11-13 15:14:24,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942638180] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:14:24,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449024456] [2024-11-13 15:14:24,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:24,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:14:24,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:14:24,791 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:14:24,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:14:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:25,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:14:25,485 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:14:25,583 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-13 15:14:25,586 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:14:25,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449024456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:25,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:14:25,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-13 15:14:25,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467927162] [2024-11-13 15:14:25,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:25,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:14:25,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:25,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:14:25,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:14:25,590 INFO L87 Difference]: Start difference. First operand 1085 states and 1547 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 15:14:25,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:25,698 INFO L93 Difference]: Finished difference Result 1057 states and 1505 transitions. [2024-11-13 15:14:25,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:14:25,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 240 [2024-11-13 15:14:25,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:25,706 INFO L225 Difference]: With dead ends: 1057 [2024-11-13 15:14:25,706 INFO L226 Difference]: Without dead ends: 1057 [2024-11-13 15:14:25,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:14:25,707 INFO L432 NwaCegarLoop]: 787 mSDtfsCounter, 105 mSDsluCounter, 1481 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:25,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 2268 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:14:25,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2024-11-13 15:14:25,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 1057. [2024-11-13 15:14:25,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1032 states have (on average 1.4195736434108528) internal successors, (1465), 1044 states have internal predecessors, (1465), 21 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 15:14:25,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1505 transitions. [2024-11-13 15:14:25,741 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1505 transitions. Word has length 240 [2024-11-13 15:14:25,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:25,742 INFO L471 AbstractCegarLoop]: Abstraction has 1057 states and 1505 transitions. [2024-11-13 15:14:25,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 15:14:25,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1505 transitions. [2024-11-13 15:14:25,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-13 15:14:25,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:25,746 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:25,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 15:14:25,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:14:25,947 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:14:25,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:25,948 INFO L85 PathProgramCache]: Analyzing trace with hash -668091629, now seen corresponding path program 1 times [2024-11-13 15:14:25,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:25,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403241793] [2024-11-13 15:14:25,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:25,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:26,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:14:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:26,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 15:14:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:26,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-13 15:14:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:26,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-13 15:14:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:26,460 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 15:14:26,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:26,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403241793] [2024-11-13 15:14:26,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403241793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:14:26,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029856500] [2024-11-13 15:14:26,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:26,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:14:26,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:14:26,463 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:14:26,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:14:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:27,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 1175 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:14:27,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:14:27,489 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 15:14:27,489 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:14:27,854 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 15:14:27,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029856500] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:14:27,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:14:27,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-11-13 15:14:27,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044711246] [2024-11-13 15:14:27,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:14:27,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:14:27,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:27,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:14:27,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:14:27,861 INFO L87 Difference]: Start difference. First operand 1057 states and 1505 transitions. Second operand has 8 states, 8 states have (on average 67.25) internal successors, (538), 7 states have internal predecessors, (538), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 15:14:28,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:28,887 INFO L93 Difference]: Finished difference Result 2416 states and 3467 transitions. [2024-11-13 15:14:28,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:14:28,887 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 67.25) internal successors, (538), 7 states have internal predecessors, (538), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 240 [2024-11-13 15:14:28,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:28,899 INFO L225 Difference]: With dead ends: 2416 [2024-11-13 15:14:28,899 INFO L226 Difference]: Without dead ends: 2416 [2024-11-13 15:14:28,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:14:28,900 INFO L432 NwaCegarLoop]: 924 mSDtfsCounter, 3935 mSDsluCounter, 3379 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3982 SdHoareTripleChecker+Valid, 4303 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:28,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3982 Valid, 4303 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 15:14:28,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2024-11-13 15:14:28,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2090. [2024-11-13 15:14:28,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2090 states, 2040 states have (on average 1.4107843137254903) internal successors, (2878), 2062 states have internal predecessors, (2878), 46 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 28 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-13 15:14:28,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 2968 transitions. [2024-11-13 15:14:28,971 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 2968 transitions. Word has length 240 [2024-11-13 15:14:28,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:28,972 INFO L471 AbstractCegarLoop]: Abstraction has 2090 states and 2968 transitions. [2024-11-13 15:14:28,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.25) internal successors, (538), 7 states have internal predecessors, (538), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 15:14:28,973 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 2968 transitions. [2024-11-13 15:14:28,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 679 [2024-11-13 15:14:28,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:28,990 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:29,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 15:14:29,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 15:14:29,194 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:14:29,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:29,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1657017984, now seen corresponding path program 1 times [2024-11-13 15:14:29,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:29,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040752999] [2024-11-13 15:14:29,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:29,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:31,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:14:31,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:31,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 15:14:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:31,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-13 15:14:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:31,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-13 15:14:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:31,128 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 4 proven. 534 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2024-11-13 15:14:31,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:31,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040752999] [2024-11-13 15:14:31,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040752999] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:14:31,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308586131] [2024-11-13 15:14:31,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:31,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:14:31,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:14:31,131 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:14:31,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 15:14:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:32,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 3224 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:14:32,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:14:33,912 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 15:14:33,912 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:14:35,061 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 15:14:35,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308586131] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:14:35,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:14:35,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2024-11-13 15:14:35,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981750995] [2024-11-13 15:14:35,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:14:35,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 15:14:35,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:35,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 15:14:35,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2024-11-13 15:14:35,068 INFO L87 Difference]: Start difference. First operand 2090 states and 2968 transitions. Second operand has 17 states, 17 states have (on average 98.23529411764706) internal successors, (1670), 16 states have internal predecessors, (1670), 5 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 15:14:41,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 15:14:43,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 15:14:47,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:47,688 INFO L93 Difference]: Finished difference Result 17133 states and 24582 transitions. [2024-11-13 15:14:47,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-13 15:14:47,690 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 98.23529411764706) internal successors, (1670), 16 states have internal predecessors, (1670), 5 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 678 [2024-11-13 15:14:47,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:47,759 INFO L225 Difference]: With dead ends: 17133 [2024-11-13 15:14:47,759 INFO L226 Difference]: Without dead ends: 17133 [2024-11-13 15:14:47,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1422 GetRequests, 1353 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1521 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1242, Invalid=3728, Unknown=0, NotChecked=0, Total=4970 [2024-11-13 15:14:47,761 INFO L432 NwaCegarLoop]: 1865 mSDtfsCounter, 49379 mSDsluCounter, 16778 mSDsCounter, 0 mSdLazyCounter, 2743 mSolverCounterSat, 759 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49379 SdHoareTripleChecker+Valid, 18643 SdHoareTripleChecker+Invalid, 3502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 759 IncrementalHoareTripleChecker+Valid, 2743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:47,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49379 Valid, 18643 Invalid, 3502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [759 Valid, 2743 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2024-11-13 15:14:47,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17133 states. [2024-11-13 15:14:48,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17133 to 12548. [2024-11-13 15:14:48,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12548 states, 12356 states have (on average 1.4131595985755907) internal successors, (17461), 12433 states have internal predecessors, (17461), 188 states have call successors, (188), 3 states have call predecessors, (188), 2 states have return successors, (186), 126 states have call predecessors, (186), 186 states have call successors, (186) [2024-11-13 15:14:48,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12548 states to 12548 states and 17835 transitions. [2024-11-13 15:14:48,116 INFO L78 Accepts]: Start accepts. Automaton has 12548 states and 17835 transitions. Word has length 678 [2024-11-13 15:14:48,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:48,117 INFO L471 AbstractCegarLoop]: Abstraction has 12548 states and 17835 transitions. [2024-11-13 15:14:48,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 98.23529411764706) internal successors, (1670), 16 states have internal predecessors, (1670), 5 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 15:14:48,122 INFO L276 IsEmpty]: Start isEmpty. Operand 12548 states and 17835 transitions. [2024-11-13 15:14:48,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1565 [2024-11-13 15:14:48,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:48,227 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:48,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 15:14:48,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31a38c9-27cc-4ea9-b1de-53e4b10c7666/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:14:48,428 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:14:48,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:48,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1813078668, now seen corresponding path program 1 times [2024-11-13 15:14:48,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:48,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906993051] [2024-11-13 15:14:48,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:48,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms