./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memcleanup.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 1c32e831c11e67575bf9fc4420a056c0795572e7218bcd99a0067a1a2caea6f7 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 14:19:14,794 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 14:19:14,848 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-20 14:19:14,861 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 14:19:14,862 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 14:19:14,891 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 14:19:14,892 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 14:19:14,892 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 14:19:14,892 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 14:19:14,894 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 14:19:14,894 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 14:19:14,894 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 14:19:14,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 14:19:14,895 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 14:19:14,895 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 14:19:14,895 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 14:19:14,895 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 14:19:14,895 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 14:19:14,896 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 14:19:14,896 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 14:19:14,896 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 14:19:14,899 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 14:19:14,899 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 14:19:14,899 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 14:19:14,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 14:19:14,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 14:19:14,900 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 14:19:14,900 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 14:19:14,900 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 14:19:14,900 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 14:19:14,900 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 14:19:14,900 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 14:19:14,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 14:19:14,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 14:19:14,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 14:19:14,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 14:19:14,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:19:14,901 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 14:19:14,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 14:19:14,902 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 14:19:14,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 14:19:14,903 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 14:19:14,903 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 14:19:14,903 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 14:19:14,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 14:19:14,903 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c32e831c11e67575bf9fc4420a056c0795572e7218bcd99a0067a1a2caea6f7 [2024-11-20 14:19:15,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 14:19:15,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 14:19:15,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 14:19:15,125 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 14:19:15,125 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 14:19:15,127 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-1.i [2024-11-20 14:19:16,400 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 14:19:16,643 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 14:19:16,644 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-1.i [2024-11-20 14:19:16,662 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be629ca37/1b8a99cb0dfb4eedad60cc7933d5419d/FLAGc1b4bce8f [2024-11-20 14:19:16,949 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be629ca37/1b8a99cb0dfb4eedad60cc7933d5419d [2024-11-20 14:19:16,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 14:19:16,952 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 14:19:16,953 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 14:19:16,953 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 14:19:16,957 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 14:19:16,958 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:19:16" (1/1) ... [2024-11-20 14:19:16,958 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4428c462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:19:16, skipping insertion in model container [2024-11-20 14:19:16,959 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:19:16" (1/1) ... [2024-11-20 14:19:17,008 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 14:19:17,399 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,430 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,433 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,436 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,440 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,468 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,472 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,474 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,482 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,509 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,513 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,515 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,519 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,528 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,528 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,529 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,530 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,538 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,538 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,539 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,540 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,554 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,555 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,556 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,556 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:19:17,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:19:17,577 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 14:19:17,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:19:17,701 INFO L204 MainTranslator]: Completed translation [2024-11-20 14:19:17,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:19:17 WrapperNode [2024-11-20 14:19:17,702 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 14:19:17,702 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 14:19:17,703 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 14:19:17,703 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 14:19:17,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:19:17" (1/1) ... [2024-11-20 14:19:17,753 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:19:17" (1/1) ... [2024-11-20 14:19:17,928 INFO L138 Inliner]: procedures = 177, calls = 507, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3415 [2024-11-20 14:19:17,928 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 14:19:17,929 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 14:19:17,929 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 14:19:17,929 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 14:19:17,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:19:17" (1/1) ... [2024-11-20 14:19:17,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:19:17" (1/1) ... [2024-11-20 14:19:17,958 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:19:17" (1/1) ... [2024-11-20 14:19:18,057 INFO L175 MemorySlicer]: Split 480 memory accesses to 3 slices as follows [2, 372, 106]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 86 writes are split as follows [0, 82, 4]. [2024-11-20 14:19:18,058 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:19:17" (1/1) ... [2024-11-20 14:19:18,058 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:19:17" (1/1) ... [2024-11-20 14:19:18,108 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:19:17" (1/1) ... [2024-11-20 14:19:18,133 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:19:17" (1/1) ... [2024-11-20 14:19:18,145 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:19:17" (1/1) ... [2024-11-20 14:19:18,156 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:19:17" (1/1) ... [2024-11-20 14:19:18,176 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 14:19:18,177 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 14:19:18,178 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 14:19:18,178 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 14:19:18,179 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:19:17" (1/1) ... [2024-11-20 14:19:18,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:19:18,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:19:18,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 14:19:18,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 14:19:18,240 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2024-11-20 14:19:18,240 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2024-11-20 14:19:18,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 14:19:18,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 14:19:18,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 14:19:18,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-20 14:19:18,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-20 14:19:18,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 14:19:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 14:19:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 14:19:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-20 14:19:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-20 14:19:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-20 14:19:18,241 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-20 14:19:18,241 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-20 14:19:18,241 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-20 14:19:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 14:19:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 14:19:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 14:19:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 14:19:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 14:19:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 14:19:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 14:19:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 14:19:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 14:19:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 14:19:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 14:19:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 14:19:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 14:19:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 14:19:18,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 14:19:18,431 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 14:19:18,433 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 14:19:20,741 INFO L? ?]: Removed 782 outVars from TransFormulas that were not future-live. [2024-11-20 14:19:20,741 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 14:19:20,769 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 14:19:20,769 INFO L316 CfgBuilder]: Removed 151 assume(true) statements. [2024-11-20 14:19:20,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:19:20 BoogieIcfgContainer [2024-11-20 14:19:20,770 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 14:19:20,771 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 14:19:20,771 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 14:19:20,774 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 14:19:20,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:19:16" (1/3) ... [2024-11-20 14:19:20,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197f6e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:19:20, skipping insertion in model container [2024-11-20 14:19:20,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:19:17" (2/3) ... [2024-11-20 14:19:20,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197f6e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:19:20, skipping insertion in model container [2024-11-20 14:19:20,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:19:20" (3/3) ... [2024-11-20 14:19:20,776 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test10-1.i [2024-11-20 14:19:20,789 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 14:19:20,790 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 14:19:20,849 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:19:20,855 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;@101549d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:19:20,856 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-20 14:19:20,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 1033 states, 1013 states have (on average 1.6288252714708786) internal successors, (1650), 1019 states have internal predecessors, (1650), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-20 14:19:20,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-20 14:19:20,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:20,877 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:19:20,877 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:20,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:20,881 INFO L85 PathProgramCache]: Analyzing trace with hash 605178484, now seen corresponding path program 1 times [2024-11-20 14:19:20,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:19:20,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307505711] [2024-11-20 14:19:20,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:20,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:19:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:21,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:19:21,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:19:21,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307505711] [2024-11-20 14:19:21,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307505711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:19:21,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:19:21,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:19:21,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957115614] [2024-11-20 14:19:21,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:19:21,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 14:19:21,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:19:21,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 14:19:21,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 14:19:21,097 INFO L87 Difference]: Start difference. First operand has 1033 states, 1013 states have (on average 1.6288252714708786) internal successors, (1650), 1019 states have internal predecessors, (1650), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:19:21,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:19:21,159 INFO L93 Difference]: Finished difference Result 1032 states and 1517 transitions. [2024-11-20 14:19:21,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 14:19:21,161 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-20 14:19:21,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:19:21,183 INFO L225 Difference]: With dead ends: 1032 [2024-11-20 14:19:21,183 INFO L226 Difference]: Without dead ends: 1030 [2024-11-20 14:19:21,185 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 [2024-11-20 14:19:21,187 INFO L432 NwaCegarLoop]: 1517 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, 1517 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 [2024-11-20 14:19:21,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1517 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 14:19:21,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2024-11-20 14:19:21,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1030. [2024-11-20 14:19:21,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 1011 states have (on average 1.4708209693372898) internal successors, (1487), 1016 states have internal predecessors, (1487), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-20 14:19:21,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1515 transitions. [2024-11-20 14:19:21,275 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1515 transitions. Word has length 14 [2024-11-20 14:19:21,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:19:21,275 INFO L471 AbstractCegarLoop]: Abstraction has 1030 states and 1515 transitions. [2024-11-20 14:19:21,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:19:21,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1515 transitions. [2024-11-20 14:19:21,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-20 14:19:21,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:21,281 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] [2024-11-20 14:19:21,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 14:19:21,281 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:21,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:21,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1600049570, now seen corresponding path program 1 times [2024-11-20 14:19:21,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:19:21,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626636628] [2024-11-20 14:19:21,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:21,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:19:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:21,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:19:21,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:19:21,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626636628] [2024-11-20 14:19:21,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626636628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:19:21,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:19:21,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 14:19:21,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962565121] [2024-11-20 14:19:21,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:19:21,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:19:21,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:19:21,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:19:21,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:19:21,682 INFO L87 Difference]: Start difference. First operand 1030 states and 1515 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:19:21,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:19:21,838 INFO L93 Difference]: Finished difference Result 1416 states and 2076 transitions. [2024-11-20 14:19:21,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 14:19:21,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-20 14:19:21,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:19:21,845 INFO L225 Difference]: With dead ends: 1416 [2024-11-20 14:19:21,845 INFO L226 Difference]: Without dead ends: 1416 [2024-11-20 14:19:21,847 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 [2024-11-20 14:19:21,848 INFO L432 NwaCegarLoop]: 1597 mSDtfsCounter, 548 mSDsluCounter, 3041 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 4638 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 14:19:21,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 4638 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 14:19:21,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2024-11-20 14:19:21,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1032. [2024-11-20 14:19:21,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 1013 states have (on average 1.4698914116485686) internal successors, (1489), 1018 states have internal predecessors, (1489), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-20 14:19:21,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1517 transitions. [2024-11-20 14:19:21,887 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1517 transitions. Word has length 69 [2024-11-20 14:19:21,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:19:21,887 INFO L471 AbstractCegarLoop]: Abstraction has 1032 states and 1517 transitions. [2024-11-20 14:19:21,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:19:21,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1517 transitions. [2024-11-20 14:19:21,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-20 14:19:21,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:21,899 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:19:21,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 14:19:21,899 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:21,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:21,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1924069969, now seen corresponding path program 1 times [2024-11-20 14:19:21,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:19:21,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88413568] [2024-11-20 14:19:21,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:21,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:19:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:22,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:19:22,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:19:22,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88413568] [2024-11-20 14:19:22,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88413568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:19:22,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:19:22,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 14:19:22,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998724070] [2024-11-20 14:19:22,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:19:22,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 14:19:22,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:19:22,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 14:19:22,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 14:19:22,482 INFO L87 Difference]: Start difference. First operand 1032 states and 1517 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:19:22,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:19:22,681 INFO L93 Difference]: Finished difference Result 1416 states and 2075 transitions. [2024-11-20 14:19:22,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:19:22,681 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2024-11-20 14:19:22,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:19:22,686 INFO L225 Difference]: With dead ends: 1416 [2024-11-20 14:19:22,686 INFO L226 Difference]: Without dead ends: 1416 [2024-11-20 14:19:22,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 14:19:22,687 INFO L432 NwaCegarLoop]: 1553 mSDtfsCounter, 1090 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 5093 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 14:19:22,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 5093 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 14:19:22,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2024-11-20 14:19:22,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1035. [2024-11-20 14:19:22,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 1016 states have (on average 1.468503937007874) internal successors, (1492), 1021 states have internal predecessors, (1492), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-20 14:19:22,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1520 transitions. [2024-11-20 14:19:22,715 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1520 transitions. Word has length 146 [2024-11-20 14:19:22,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:19:22,716 INFO L471 AbstractCegarLoop]: Abstraction has 1035 states and 1520 transitions. [2024-11-20 14:19:22,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:19:22,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1520 transitions. [2024-11-20 14:19:22,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-20 14:19:22,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:22,720 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:19:22,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 14:19:22,720 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:22,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:22,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1149594207, now seen corresponding path program 1 times [2024-11-20 14:19:22,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:19:22,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053128063] [2024-11-20 14:19:22,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:22,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:19:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:23,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:19:23,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:19:23,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053128063] [2024-11-20 14:19:23,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053128063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:19:23,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:19:23,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 14:19:23,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962403558] [2024-11-20 14:19:23,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:19:23,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:19:23,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:19:23,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:19:23,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:19:23,082 INFO L87 Difference]: Start difference. First operand 1035 states and 1520 transitions. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:19:23,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:19:23,163 INFO L93 Difference]: Finished difference Result 993 states and 1443 transitions. [2024-11-20 14:19:23,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:19:23,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2024-11-20 14:19:23,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:19:23,168 INFO L225 Difference]: With dead ends: 993 [2024-11-20 14:19:23,168 INFO L226 Difference]: Without dead ends: 993 [2024-11-20 14:19:23,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:19:23,169 INFO L432 NwaCegarLoop]: 1413 mSDtfsCounter, 30 mSDsluCounter, 2807 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 4220 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 14:19:23,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 4220 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 14:19:23,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2024-11-20 14:19:23,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 993. [2024-11-20 14:19:23,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 974 states have (on average 1.4527720739219712) internal successors, (1415), 979 states have internal predecessors, (1415), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-20 14:19:23,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1443 transitions. [2024-11-20 14:19:23,191 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1443 transitions. Word has length 217 [2024-11-20 14:19:23,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:19:23,192 INFO L471 AbstractCegarLoop]: Abstraction has 993 states and 1443 transitions. [2024-11-20 14:19:23,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:19:23,192 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1443 transitions. [2024-11-20 14:19:23,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-20 14:19:23,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:23,194 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:19:23,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 14:19:23,195 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:23,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:23,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1016052691, now seen corresponding path program 1 times [2024-11-20 14:19:23,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:19:23,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955140379] [2024-11-20 14:19:23,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:23,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:19:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:23,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:19:23,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:19:23,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955140379] [2024-11-20 14:19:23,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955140379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:19:23,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:19:23,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:19:23,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810714307] [2024-11-20 14:19:23,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:19:23,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:19:23,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:19:23,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:19:23,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:19:23,407 INFO L87 Difference]: Start difference. First operand 993 states and 1443 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:19:23,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:19:23,481 INFO L93 Difference]: Finished difference Result 1527 states and 2227 transitions. [2024-11-20 14:19:23,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:19:23,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2024-11-20 14:19:23,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:19:23,489 INFO L225 Difference]: With dead ends: 1527 [2024-11-20 14:19:23,489 INFO L226 Difference]: Without dead ends: 1527 [2024-11-20 14:19:23,489 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 [2024-11-20 14:19:23,492 INFO L432 NwaCegarLoop]: 1430 mSDtfsCounter, 718 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 2842 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 14:19:23,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 2842 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 14:19:23,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2024-11-20 14:19:23,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1365. [2024-11-20 14:19:23,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1344 states have (on average 1.4561011904761905) internal successors, (1957), 1349 states have internal predecessors, (1957), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-20 14:19:23,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1989 transitions. [2024-11-20 14:19:23,525 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1989 transitions. Word has length 217 [2024-11-20 14:19:23,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:19:23,526 INFO L471 AbstractCegarLoop]: Abstraction has 1365 states and 1989 transitions. [2024-11-20 14:19:23,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:19:23,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1989 transitions. [2024-11-20 14:19:23,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-20 14:19:23,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:23,529 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:19:23,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 14:19:23,530 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:23,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:23,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1368293914, now seen corresponding path program 1 times [2024-11-20 14:19:23,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:19:23,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740922279] [2024-11-20 14:19:23,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:23,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:19:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:23,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 14:19:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:23,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 14:19:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:23,929 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 14:19:23,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:19:23,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740922279] [2024-11-20 14:19:23,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740922279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:19:23,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:19:23,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:19:23,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334339206] [2024-11-20 14:19:23,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:19:23,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:19:23,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:19:23,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:19:23,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:19:23,933 INFO L87 Difference]: Start difference. First operand 1365 states and 1989 transitions. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 4 states have internal predecessors, (223), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 14:19:24,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:19:24,511 INFO L93 Difference]: Finished difference Result 1326 states and 1921 transitions. [2024-11-20 14:19:24,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 14:19:24,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 4 states have internal predecessors, (223), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 232 [2024-11-20 14:19:24,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:19:24,517 INFO L225 Difference]: With dead ends: 1326 [2024-11-20 14:19:24,517 INFO L226 Difference]: Without dead ends: 1326 [2024-11-20 14:19:24,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 14:19:24,518 INFO L432 NwaCegarLoop]: 1304 mSDtfsCounter, 54 mSDsluCounter, 3757 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 5061 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 14:19:24,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 5061 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 14:19:24,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2024-11-20 14:19:24,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1323. [2024-11-20 14:19:24,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 1302 states have (on average 1.443932411674347) internal successors, (1880), 1307 states have internal predecessors, (1880), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-20 14:19:24,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1912 transitions. [2024-11-20 14:19:24,541 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1912 transitions. Word has length 232 [2024-11-20 14:19:24,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:19:24,541 INFO L471 AbstractCegarLoop]: Abstraction has 1323 states and 1912 transitions. [2024-11-20 14:19:24,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 4 states have internal predecessors, (223), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 14:19:24,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1912 transitions. [2024-11-20 14:19:24,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-20 14:19:24,544 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:24,544 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:19:24,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 14:19:24,544 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:24,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:24,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1691787378, now seen corresponding path program 1 times [2024-11-20 14:19:24,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:19:24,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83996862] [2024-11-20 14:19:24,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:24,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:19:24,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:24,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 14:19:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:24,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 14:19:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:24,856 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 14:19:24,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:19:24,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83996862] [2024-11-20 14:19:24,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83996862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:19:24,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:19:24,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 14:19:24,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848864960] [2024-11-20 14:19:24,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:19:24,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:19:24,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:19:24,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:19:24,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:19:24,860 INFO L87 Difference]: Start difference. First operand 1323 states and 1912 transitions. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 14:19:25,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:19:25,515 INFO L93 Difference]: Finished difference Result 1326 states and 1918 transitions. [2024-11-20 14:19:25,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 14:19:25,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 232 [2024-11-20 14:19:25,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:19:25,520 INFO L225 Difference]: With dead ends: 1326 [2024-11-20 14:19:25,520 INFO L226 Difference]: Without dead ends: 1326 [2024-11-20 14:19:25,520 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 [2024-11-20 14:19:25,521 INFO L432 NwaCegarLoop]: 1317 mSDtfsCounter, 25 mSDsluCounter, 2483 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 14:19:25,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 3800 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 14:19:25,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2024-11-20 14:19:25,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1323. [2024-11-20 14:19:25,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 1302 states have (on average 1.4416282642089093) internal successors, (1877), 1307 states have internal predecessors, (1877), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-20 14:19:25,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1909 transitions. [2024-11-20 14:19:25,542 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1909 transitions. Word has length 232 [2024-11-20 14:19:25,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:19:25,543 INFO L471 AbstractCegarLoop]: Abstraction has 1323 states and 1909 transitions. [2024-11-20 14:19:25,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 14:19:25,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1909 transitions. [2024-11-20 14:19:25,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-20 14:19:25,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:25,545 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:19:25,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 14:19:25,546 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:25,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:25,546 INFO L85 PathProgramCache]: Analyzing trace with hash 601293648, now seen corresponding path program 1 times [2024-11-20 14:19:25,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:19:25,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695852569] [2024-11-20 14:19:25,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:25,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:19:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:25,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 14:19:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:25,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 14:19:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:25,829 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 14:19:25,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:19:25,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695852569] [2024-11-20 14:19:25,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695852569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:19:25,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:19:25,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 14:19:25,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688645755] [2024-11-20 14:19:25,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:19:25,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:19:25,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:19:25,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:19:25,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:19:25,833 INFO L87 Difference]: Start difference. First operand 1323 states and 1909 transitions. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 14:19:26,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:19:26,213 INFO L93 Difference]: Finished difference Result 1900 states and 2753 transitions. [2024-11-20 14:19:26,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 14:19:26,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 232 [2024-11-20 14:19:26,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:19:26,220 INFO L225 Difference]: With dead ends: 1900 [2024-11-20 14:19:26,221 INFO L226 Difference]: Without dead ends: 1900 [2024-11-20 14:19:26,221 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 [2024-11-20 14:19:26,222 INFO L432 NwaCegarLoop]: 1321 mSDtfsCounter, 623 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 3814 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 14:19:26,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 3814 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 14:19:26,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2024-11-20 14:19:26,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1889. [2024-11-20 14:19:26,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1862 states have (on average 1.4441460794844254) internal successors, (2689), 1867 states have internal predecessors, (2689), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-20 14:19:26,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2733 transitions. [2024-11-20 14:19:26,257 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2733 transitions. Word has length 232 [2024-11-20 14:19:26,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:19:26,259 INFO L471 AbstractCegarLoop]: Abstraction has 1889 states and 2733 transitions. [2024-11-20 14:19:26,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 14:19:26,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2733 transitions. [2024-11-20 14:19:26,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-20 14:19:26,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:26,262 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:19:26,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 14:19:26,262 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:26,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:26,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1434475418, now seen corresponding path program 1 times [2024-11-20 14:19:26,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:19:26,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52804175] [2024-11-20 14:19:26,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:26,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:19:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:26,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 14:19:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:26,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 14:19:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:26,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 14:19:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:26,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 14:19:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:26,621 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 14:19:26,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:19:26,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52804175] [2024-11-20 14:19:26,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52804175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:19:26,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:19:26,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 14:19:26,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633302716] [2024-11-20 14:19:26,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:19:26,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 14:19:26,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:19:26,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 14:19:26,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 14:19:26,624 INFO L87 Difference]: Start difference. First operand 1889 states and 2733 transitions. Second operand has 6 states, 6 states have (on average 38.0) internal successors, (228), 5 states have internal predecessors, (228), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:19:27,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:19:27,592 INFO L93 Difference]: Finished difference Result 2433 states and 3535 transitions. [2024-11-20 14:19:27,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 14:19:27,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 5 states have internal predecessors, (228), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 247 [2024-11-20 14:19:27,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:19:27,601 INFO L225 Difference]: With dead ends: 2433 [2024-11-20 14:19:27,601 INFO L226 Difference]: Without dead ends: 2433 [2024-11-20 14:19:27,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-20 14:19:27,603 INFO L432 NwaCegarLoop]: 1392 mSDtfsCounter, 4545 mSDsluCounter, 2683 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4557 SdHoareTripleChecker+Valid, 4075 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 14:19:27,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4557 Valid, 4075 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 14:19:27,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2433 states. [2024-11-20 14:19:27,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2433 to 1460. [2024-11-20 14:19:27,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1438 states have (on average 1.4283727399165507) internal successors, (2054), 1443 states have internal predecessors, (2054), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 14:19:27,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 2088 transitions. [2024-11-20 14:19:27,638 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 2088 transitions. Word has length 247 [2024-11-20 14:19:27,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:19:27,638 INFO L471 AbstractCegarLoop]: Abstraction has 1460 states and 2088 transitions. [2024-11-20 14:19:27,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 5 states have internal predecessors, (228), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:19:27,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 2088 transitions. [2024-11-20 14:19:27,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-20 14:19:27,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:27,641 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:19:27,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 14:19:27,641 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:27,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:27,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1846500462, now seen corresponding path program 1 times [2024-11-20 14:19:27,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:19:27,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430393919] [2024-11-20 14:19:27,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:27,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:19:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:27,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 14:19:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:27,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 14:19:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:27,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 14:19:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:27,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 14:19:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:27,992 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-20 14:19:27,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:19:27,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430393919] [2024-11-20 14:19:27,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430393919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:19:27,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:19:27,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:19:27,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014395453] [2024-11-20 14:19:27,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:19:27,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:19:27,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:19:27,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:19:27,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:19:27,995 INFO L87 Difference]: Start difference. First operand 1460 states and 2088 transitions. Second operand has 5 states, 5 states have (on average 47.4) internal successors, (237), 4 states have internal predecessors, (237), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-20 14:19:28,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:19:28,570 INFO L93 Difference]: Finished difference Result 1421 states and 2021 transitions. [2024-11-20 14:19:28,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 14:19:28,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 4 states have internal predecessors, (237), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 257 [2024-11-20 14:19:28,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:19:28,576 INFO L225 Difference]: With dead ends: 1421 [2024-11-20 14:19:28,576 INFO L226 Difference]: Without dead ends: 1421 [2024-11-20 14:19:28,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 14:19:28,577 INFO L432 NwaCegarLoop]: 1218 mSDtfsCounter, 54 mSDsluCounter, 3500 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 4718 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 14:19:28,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 4718 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 14:19:28,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2024-11-20 14:19:28,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1418. [2024-11-20 14:19:28,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1396 states have (on average 1.416189111747851) internal successors, (1977), 1401 states have internal predecessors, (1977), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 14:19:28,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 2011 transitions. [2024-11-20 14:19:28,600 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 2011 transitions. Word has length 257 [2024-11-20 14:19:28,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:19:28,600 INFO L471 AbstractCegarLoop]: Abstraction has 1418 states and 2011 transitions. [2024-11-20 14:19:28,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 4 states have internal predecessors, (237), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-20 14:19:28,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 2011 transitions. [2024-11-20 14:19:28,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-20 14:19:28,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:28,604 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:19:28,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 14:19:28,604 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:28,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:28,605 INFO L85 PathProgramCache]: Analyzing trace with hash -205004000, now seen corresponding path program 1 times [2024-11-20 14:19:28,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:19:28,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641266014] [2024-11-20 14:19:28,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:28,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:19:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:28,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 14:19:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:28,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 14:19:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:28,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 14:19:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:28,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 14:19:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:28,937 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-20 14:19:28,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:19:28,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641266014] [2024-11-20 14:19:28,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641266014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:19:28,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:19:28,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 14:19:28,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420499541] [2024-11-20 14:19:28,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:19:28,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:19:28,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:19:28,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:19:28,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:19:28,940 INFO L87 Difference]: Start difference. First operand 1418 states and 2011 transitions. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 3 states have internal predecessors, (237), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-20 14:19:29,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:19:29,364 INFO L93 Difference]: Finished difference Result 1421 states and 2018 transitions. [2024-11-20 14:19:29,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 14:19:29,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 3 states have internal predecessors, (237), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 257 [2024-11-20 14:19:29,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:19:29,370 INFO L225 Difference]: With dead ends: 1421 [2024-11-20 14:19:29,370 INFO L226 Difference]: Without dead ends: 1421 [2024-11-20 14:19:29,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:19:29,371 INFO L432 NwaCegarLoop]: 1232 mSDtfsCounter, 25 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 14:19:29,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 3542 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 14:19:29,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2024-11-20 14:19:29,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1418. [2024-11-20 14:19:29,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1396 states have (on average 1.4140401146131805) internal successors, (1974), 1401 states have internal predecessors, (1974), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 14:19:29,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 2008 transitions. [2024-11-20 14:19:29,403 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 2008 transitions. Word has length 257 [2024-11-20 14:19:29,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:19:29,404 INFO L471 AbstractCegarLoop]: Abstraction has 1418 states and 2008 transitions. [2024-11-20 14:19:29,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 3 states have internal predecessors, (237), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-20 14:19:29,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 2008 transitions. [2024-11-20 14:19:29,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-20 14:19:29,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:29,407 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:19:29,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 14:19:29,408 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:29,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:29,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1839100828, now seen corresponding path program 1 times [2024-11-20 14:19:29,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:19:29,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731257557] [2024-11-20 14:19:29,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:29,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:19:29,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:30,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 14:19:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:30,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 14:19:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:30,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 14:19:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:30,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 14:19:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:30,259 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 14:19:30,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:19:30,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731257557] [2024-11-20 14:19:30,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731257557] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:19:30,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730995565] [2024-11-20 14:19:30,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:30,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:19:30,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:19:30,262 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 14:19:30,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 14:19:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:30,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 1265 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 14:19:30,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:19:30,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 14:19:31,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:19:31,325 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 14:19:31,326 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:19:31,630 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 14:19:31,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730995565] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:19:31,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 14:19:31,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 5] total 13 [2024-11-20 14:19:31,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947940248] [2024-11-20 14:19:31,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 14:19:31,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 14:19:31,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:19:31,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 14:19:31,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-20 14:19:31,635 INFO L87 Difference]: Start difference. First operand 1418 states and 2008 transitions. Second operand has 13 states, 13 states have (on average 43.23076923076923) internal successors, (562), 12 states have internal predecessors, (562), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 14:19:32,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:19:32,737 INFO L93 Difference]: Finished difference Result 2369 states and 3298 transitions. [2024-11-20 14:19:32,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 14:19:32,738 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 43.23076923076923) internal successors, (562), 12 states have internal predecessors, (562), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 257 [2024-11-20 14:19:32,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:19:32,744 INFO L225 Difference]: With dead ends: 2369 [2024-11-20 14:19:32,744 INFO L226 Difference]: Without dead ends: 2369 [2024-11-20 14:19:32,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 510 SyntacticMatches, 7 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-20 14:19:32,745 INFO L432 NwaCegarLoop]: 1551 mSDtfsCounter, 3074 mSDsluCounter, 6887 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3105 SdHoareTripleChecker+Valid, 8438 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 14:19:32,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3105 Valid, 8438 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 14:19:32,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2369 states. [2024-11-20 14:19:32,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2369 to 2072. [2024-11-20 14:19:32,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2072 states, 2038 states have (on average 1.3856722276741904) internal successors, (2824), 2043 states have internal predecessors, (2824), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 25 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-20 14:19:32,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 2880 transitions. [2024-11-20 14:19:32,777 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 2880 transitions. Word has length 257 [2024-11-20 14:19:32,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:19:32,777 INFO L471 AbstractCegarLoop]: Abstraction has 2072 states and 2880 transitions. [2024-11-20 14:19:32,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 43.23076923076923) internal successors, (562), 12 states have internal predecessors, (562), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 14:19:32,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 2880 transitions. [2024-11-20 14:19:32,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2024-11-20 14:19:32,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:32,783 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:19:32,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 14:19:32,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-20 14:19:32,984 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:32,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:32,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1036408363, now seen corresponding path program 1 times [2024-11-20 14:19:32,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:19:32,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533498381] [2024-11-20 14:19:32,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:32,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:19:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:34,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 14:19:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:34,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 14:19:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:34,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 14:19:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:34,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 14:19:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:34,620 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 234 proven. 5 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-11-20 14:19:34,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:19:34,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533498381] [2024-11-20 14:19:34,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533498381] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:19:34,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338960752] [2024-11-20 14:19:34,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:34,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:19:34,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:19:34,623 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 14:19:34,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 14:19:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:35,411 INFO L255 TraceCheckSpWp]: Trace formula consists of 2405 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 14:19:35,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:19:35,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 14:19:35,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:19:35,803 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 234 proven. 5 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-11-20 14:19:35,803 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:19:36,102 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 234 proven. 5 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-11-20 14:19:36,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338960752] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:19:36,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 14:19:36,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 5] total 14 [2024-11-20 14:19:36,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343788225] [2024-11-20 14:19:36,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 14:19:36,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 14:19:36,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:19:36,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 14:19:36,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-20 14:19:36,105 INFO L87 Difference]: Start difference. First operand 2072 states and 2880 transitions. Second operand has 14 states, 14 states have (on average 46.357142857142854) internal successors, (649), 13 states have internal predecessors, (649), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 14:19:37,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:19:37,215 INFO L93 Difference]: Finished difference Result 2369 states and 3295 transitions. [2024-11-20 14:19:37,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 14:19:37,219 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 46.357142857142854) internal successors, (649), 13 states have internal predecessors, (649), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 488 [2024-11-20 14:19:37,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:19:37,228 INFO L225 Difference]: With dead ends: 2369 [2024-11-20 14:19:37,228 INFO L226 Difference]: Without dead ends: 2369 [2024-11-20 14:19:37,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 998 GetRequests, 973 SyntacticMatches, 7 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2024-11-20 14:19:37,229 INFO L432 NwaCegarLoop]: 1577 mSDtfsCounter, 2608 mSDsluCounter, 10473 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2638 SdHoareTripleChecker+Valid, 12050 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 14:19:37,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2638 Valid, 12050 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 14:19:37,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2369 states. [2024-11-20 14:19:37,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2369 to 2075. [2024-11-20 14:19:37,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2075 states, 2041 states have (on average 1.384125428711416) internal successors, (2825), 2046 states have internal predecessors, (2825), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 25 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-20 14:19:37,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 2881 transitions. [2024-11-20 14:19:37,302 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 2881 transitions. Word has length 488 [2024-11-20 14:19:37,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:19:37,303 INFO L471 AbstractCegarLoop]: Abstraction has 2075 states and 2881 transitions. [2024-11-20 14:19:37,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 46.357142857142854) internal successors, (649), 13 states have internal predecessors, (649), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 14:19:37,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 2881 transitions. [2024-11-20 14:19:37,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2024-11-20 14:19:37,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:37,314 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:19:37,326 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 14:19:37,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-20 14:19:37,519 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:37,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:37,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1857615765, now seen corresponding path program 1 times [2024-11-20 14:19:37,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:19:37,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811164801] [2024-11-20 14:19:37,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:37,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:19:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:41,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 14:19:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:41,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 14:19:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:41,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 14:19:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:41,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 14:19:41,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:41,732 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 0 proven. 884 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 14:19:41,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:19:41,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811164801] [2024-11-20 14:19:41,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811164801] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:19:41,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327639318] [2024-11-20 14:19:41,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:41,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:19:41,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:19:41,736 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 14:19:41,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 14:19:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:42,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 3386 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-20 14:19:42,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:19:42,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 14:19:43,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:19:43,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:19:43,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:19:43,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:19:43,633 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 0 proven. 884 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 14:19:43,633 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:19:44,358 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 0 proven. 884 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 14:19:44,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327639318] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:19:44,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 14:19:44,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 8] total 25 [2024-11-20 14:19:44,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217507713] [2024-11-20 14:19:44,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 14:19:44,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-20 14:19:44,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:19:44,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-20 14:19:44,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=416, Unknown=0, NotChecked=0, Total=600 [2024-11-20 14:19:44,364 INFO L87 Difference]: Start difference. First operand 2075 states and 2881 transitions. Second operand has 25 states, 25 states have (on average 75.76) internal successors, (1894), 24 states have internal predecessors, (1894), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 14:19:46,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:19:46,695 INFO L93 Difference]: Finished difference Result 4127 states and 5671 transitions. [2024-11-20 14:19:46,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-20 14:19:46,696 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 75.76) internal successors, (1894), 24 states have internal predecessors, (1894), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 701 [2024-11-20 14:19:46,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:19:46,720 INFO L225 Difference]: With dead ends: 4127 [2024-11-20 14:19:46,720 INFO L226 Difference]: Without dead ends: 4127 [2024-11-20 14:19:46,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1435 GetRequests, 1395 SyntacticMatches, 7 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=866, Unknown=0, NotChecked=0, Total=1190 [2024-11-20 14:19:46,721 INFO L432 NwaCegarLoop]: 2685 mSDtfsCounter, 6649 mSDsluCounter, 21614 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6728 SdHoareTripleChecker+Valid, 24299 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-20 14:19:46,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6728 Valid, 24299 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-20 14:19:46,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4127 states. [2024-11-20 14:19:46,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4127 to 3830. [2024-11-20 14:19:46,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3830 states, 3772 states have (on average 1.358695652173913) internal successors, (5125), 3777 states have internal predecessors, (5125), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-20 14:19:46,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3830 states to 3830 states and 5229 transitions. [2024-11-20 14:19:46,780 INFO L78 Accepts]: Start accepts. Automaton has 3830 states and 5229 transitions. Word has length 701 [2024-11-20 14:19:46,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:19:46,781 INFO L471 AbstractCegarLoop]: Abstraction has 3830 states and 5229 transitions. [2024-11-20 14:19:46,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 75.76) internal successors, (1894), 24 states have internal predecessors, (1894), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 14:19:46,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3830 states and 5229 transitions. [2024-11-20 14:19:46,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1164 [2024-11-20 14:19:46,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:46,832 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:19:46,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-20 14:19:47,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:19:47,033 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:47,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:47,035 INFO L85 PathProgramCache]: Analyzing trace with hash -75308021, now seen corresponding path program 1 times [2024-11-20 14:19:47,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:19:47,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126917839] [2024-11-20 14:19:47,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:47,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:19:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:53,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 14:19:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:53,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 14:19:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:53,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 14:19:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:53,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 14:19:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:53,555 INFO L134 CoverageAnalysis]: Checked inductivity of 3911 backedges. 1851 proven. 896 refuted. 0 times theorem prover too weak. 1164 trivial. 0 not checked. [2024-11-20 14:19:53,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:19:53,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126917839] [2024-11-20 14:19:53,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126917839] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:19:53,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007591464] [2024-11-20 14:19:53,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:53,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:19:53,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:19:53,557 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 14:19:53,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 14:19:54,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:54,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 5666 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-20 14:19:54,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:19:54,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 14:19:55,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:19:55,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:19:55,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:19:55,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:19:55,762 INFO L134 CoverageAnalysis]: Checked inductivity of 3911 backedges. 1851 proven. 896 refuted. 0 times theorem prover too weak. 1164 trivial. 0 not checked. [2024-11-20 14:19:55,763 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:19:56,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3911 backedges. 1851 proven. 896 refuted. 0 times theorem prover too weak. 1164 trivial. 0 not checked. [2024-11-20 14:19:56,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007591464] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:19:56,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 14:19:56,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 8] total 26 [2024-11-20 14:19:56,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77734587] [2024-11-20 14:19:56,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 14:19:56,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-20 14:19:56,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:19:56,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-20 14:19:56,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=462, Unknown=0, NotChecked=0, Total=650 [2024-11-20 14:19:56,414 INFO L87 Difference]: Start difference. First operand 3830 states and 5229 transitions. Second operand has 26 states, 26 states have (on average 76.1923076923077) internal successors, (1981), 25 states have internal predecessors, (1981), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 14:19:58,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:19:58,311 INFO L93 Difference]: Finished difference Result 4127 states and 5665 transitions. [2024-11-20 14:19:58,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-20 14:19:58,312 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 76.1923076923077) internal successors, (1981), 25 states have internal predecessors, (1981), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 1163 [2024-11-20 14:19:58,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:19:58,321 INFO L225 Difference]: With dead ends: 4127 [2024-11-20 14:19:58,321 INFO L226 Difference]: Without dead ends: 4127 [2024-11-20 14:19:58,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2366 GetRequests, 2320 SyntacticMatches, 7 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=375, Invalid=1265, Unknown=0, NotChecked=0, Total=1640 [2024-11-20 14:19:58,322 INFO L432 NwaCegarLoop]: 2708 mSDtfsCounter, 4671 mSDsluCounter, 27396 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4749 SdHoareTripleChecker+Valid, 30104 SdHoareTripleChecker+Invalid, 1830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-20 14:19:58,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4749 Valid, 30104 Invalid, 1830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1753 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-20 14:19:58,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4127 states. [2024-11-20 14:19:58,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4127 to 3833. [2024-11-20 14:19:58,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3833 states, 3775 states have (on average 1.3570860927152317) internal successors, (5123), 3780 states have internal predecessors, (5123), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-20 14:19:58,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3833 states to 3833 states and 5227 transitions. [2024-11-20 14:19:58,365 INFO L78 Accepts]: Start accepts. Automaton has 3833 states and 5227 transitions. Word has length 1163 [2024-11-20 14:19:58,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:19:58,366 INFO L471 AbstractCegarLoop]: Abstraction has 3833 states and 5227 transitions. [2024-11-20 14:19:58,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 76.1923076923077) internal successors, (1981), 25 states have internal predecessors, (1981), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 14:19:58,367 INFO L276 IsEmpty]: Start isEmpty. Operand 3833 states and 5227 transitions. [2024-11-20 14:19:58,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1590 [2024-11-20 14:19:58,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:58,380 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1] [2024-11-20 14:19:58,400 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 14:19:58,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-20 14:19:58,581 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:58,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:58,582 INFO L85 PathProgramCache]: Analyzing trace with hash 429709449, now seen corresponding path program 2 times [2024-11-20 14:19:58,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:19:58,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300194412] [2024-11-20 14:19:58,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:58,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:19:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:20:02,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 14:20:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:20:02,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 14:20:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:20:02,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 14:20:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:20:02,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 14:20:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:20:02,772 INFO L134 CoverageAnalysis]: Checked inductivity of 6668 backedges. 1320 proven. 1 refuted. 0 times theorem prover too weak. 5347 trivial. 0 not checked. [2024-11-20 14:20:02,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:20:02,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300194412] [2024-11-20 14:20:02,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300194412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:20:02,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133401719] [2024-11-20 14:20:02,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 14:20:02,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:20:02,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:20:02,775 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 14:20:02,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 14:20:03,902 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 14:20:03,903 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 14:20:03,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-20 14:20:03,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:20:03,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 14:20:04,486 INFO L134 CoverageAnalysis]: Checked inductivity of 6668 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6668 trivial. 0 not checked. [2024-11-20 14:20:04,486 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 14:20:04,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133401719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:20:04,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 14:20:04,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8] total 16 [2024-11-20 14:20:04,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630234307] [2024-11-20 14:20:04,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:20:04,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 14:20:04,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:20:04,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 14:20:04,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-20 14:20:04,489 INFO L87 Difference]: Start difference. First operand 3833 states and 5227 transitions. Second operand has 10 states, 10 states have (on average 24.3) internal successors, (243), 10 states have internal predecessors, (243), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-20 14:20:05,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:20:05,404 INFO L93 Difference]: Finished difference Result 3839 states and 5235 transitions. [2024-11-20 14:20:05,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 14:20:05,409 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 24.3) internal successors, (243), 10 states have internal predecessors, (243), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 1589 [2024-11-20 14:20:05,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:20:05,419 INFO L225 Difference]: With dead ends: 3839 [2024-11-20 14:20:05,419 INFO L226 Difference]: Without dead ends: 3839 [2024-11-20 14:20:05,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1611 GetRequests, 1590 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2024-11-20 14:20:05,420 INFO L432 NwaCegarLoop]: 1240 mSDtfsCounter, 388 mSDsluCounter, 8765 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 10005 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 14:20:05,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 10005 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 14:20:05,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2024-11-20 14:20:05,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 3836. [2024-11-20 14:20:05,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3836 states, 3778 states have (on average 1.3568025410269984) internal successors, (5126), 3783 states have internal predecessors, (5126), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-20 14:20:05,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3836 states to 3836 states and 5230 transitions. [2024-11-20 14:20:05,473 INFO L78 Accepts]: Start accepts. Automaton has 3836 states and 5230 transitions. Word has length 1589 [2024-11-20 14:20:05,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:20:05,475 INFO L471 AbstractCegarLoop]: Abstraction has 3836 states and 5230 transitions. [2024-11-20 14:20:05,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 24.3) internal successors, (243), 10 states have internal predecessors, (243), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-20 14:20:05,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3836 states and 5230 transitions. [2024-11-20 14:20:05,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1590 [2024-11-20 14:20:05,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:20:05,490 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1] [2024-11-20 14:20:05,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 14:20:05,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-20 14:20:05,691 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:20:05,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:20:05,692 INFO L85 PathProgramCache]: Analyzing trace with hash 216290705, now seen corresponding path program 1 times [2024-11-20 14:20:05,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:20:05,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289346872] [2024-11-20 14:20:05,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:20:05,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:20:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:20:07,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 14:20:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:20:07,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 14:20:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:20:07,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 14:20:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:20:07,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 14:20:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:20:07,521 INFO L134 CoverageAnalysis]: Checked inductivity of 6668 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6668 trivial. 0 not checked. [2024-11-20 14:20:07,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:20:07,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289346872] [2024-11-20 14:20:07,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289346872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:20:07,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:20:07,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:20:07,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197953911] [2024-11-20 14:20:07,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:20:07,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:20:07,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:20:07,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:20:07,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:20:07,523 INFO L87 Difference]: Start difference. First operand 3836 states and 5230 transitions. Second operand has 5 states, 5 states have (on average 48.6) internal successors, (243), 4 states have internal predecessors, (243), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-20 14:20:07,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:20:07,950 INFO L93 Difference]: Finished difference Result 3833 states and 5267 transitions. [2024-11-20 14:20:07,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 14:20:07,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.6) internal successors, (243), 4 states have internal predecessors, (243), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 1589 [2024-11-20 14:20:07,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:20:07,957 INFO L225 Difference]: With dead ends: 3833 [2024-11-20 14:20:07,957 INFO L226 Difference]: Without dead ends: 3833 [2024-11-20 14:20:07,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 14:20:07,958 INFO L432 NwaCegarLoop]: 1217 mSDtfsCounter, 33 mSDsluCounter, 3496 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 4713 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 14:20:07,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 4713 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 14:20:07,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3833 states. [2024-11-20 14:20:07,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3833 to 3827. [2024-11-20 14:20:07,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3827 states, 3769 states have (on average 1.3571239055452375) internal successors, (5115), 3774 states have internal predecessors, (5115), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-20 14:20:07,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3827 states to 3827 states and 5219 transitions. [2024-11-20 14:20:07,995 INFO L78 Accepts]: Start accepts. Automaton has 3827 states and 5219 transitions. Word has length 1589 [2024-11-20 14:20:07,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:20:07,996 INFO L471 AbstractCegarLoop]: Abstraction has 3827 states and 5219 transitions. [2024-11-20 14:20:07,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.6) internal successors, (243), 4 states have internal predecessors, (243), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-20 14:20:07,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3827 states and 5219 transitions. [2024-11-20 14:20:08,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1591 [2024-11-20 14:20:08,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:20:08,011 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1] [2024-11-20 14:20:08,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 14:20:08,011 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:20:08,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:20:08,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1575865519, now seen corresponding path program 1 times [2024-11-20 14:20:08,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:20:08,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939503513] [2024-11-20 14:20:08,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:20:08,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:20:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:20:12,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 14:20:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:20:12,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 14:20:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:20:12,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 14:20:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:20:12,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 14:20:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:20:12,417 INFO L134 CoverageAnalysis]: Checked inductivity of 6668 backedges. 1320 proven. 1 refuted. 0 times theorem prover too weak. 5347 trivial. 0 not checked. [2024-11-20 14:20:12,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:20:12,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939503513] [2024-11-20 14:20:12,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939503513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:20:12,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574235000] [2024-11-20 14:20:12,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:20:12,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:20:12,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:20:12,420 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 14:20:12,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 14:20:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:20:14,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 7629 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-20 14:20:14,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:20:14,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 14:20:14,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:20:15,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:20:15,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:20:15,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:20:15,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:20:15,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:20:15,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:20:15,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:20:15,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:20:16,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 14:20:16,110 INFO L134 CoverageAnalysis]: Checked inductivity of 6668 backedges. 0 proven. 6644 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 14:20:16,111 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:20:17,574 INFO L134 CoverageAnalysis]: Checked inductivity of 6668 backedges. 0 proven. 6644 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 14:20:17,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574235000] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:20:17,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 14:20:17,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 14] total 32 [2024-11-20 14:20:17,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635448840] [2024-11-20 14:20:17,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 14:20:17,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-20 14:20:17,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:20:17,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-20 14:20:17,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=709, Unknown=0, NotChecked=0, Total=992 [2024-11-20 14:20:17,580 INFO L87 Difference]: Start difference. First operand 3827 states and 5219 transitions. Second operand has 32 states, 32 states have (on average 105.65625) internal successors, (3381), 31 states have internal predecessors, (3381), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 14:20:22,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:20:22,091 INFO L93 Difference]: Finished difference Result 6120 states and 8343 transitions. [2024-11-20 14:20:22,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-11-20 14:20:22,093 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 105.65625) internal successors, (3381), 31 states have internal predecessors, (3381), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 1590 [2024-11-20 14:20:22,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:20:22,108 INFO L225 Difference]: With dead ends: 6120 [2024-11-20 14:20:22,109 INFO L226 Difference]: Without dead ends: 6120 [2024-11-20 14:20:22,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3242 GetRequests, 3158 SyntacticMatches, 7 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1819 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1320, Invalid=4842, Unknown=0, NotChecked=0, Total=6162 [2024-11-20 14:20:22,111 INFO L432 NwaCegarLoop]: 4753 mSDtfsCounter, 11050 mSDsluCounter, 66178 mSDsCounter, 0 mSdLazyCounter, 3555 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11215 SdHoareTripleChecker+Valid, 70931 SdHoareTripleChecker+Invalid, 3688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 3555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-20 14:20:22,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11215 Valid, 70931 Invalid, 3688 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [133 Valid, 3555 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-20 14:20:22,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6120 states. [2024-11-20 14:20:22,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6120 to 5965. [2024-11-20 14:20:22,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5965 states, 5867 states have (on average 1.3414010567581387) internal successors, (7870), 5872 states have internal predecessors, (7870), 92 states have call successors, (92), 4 states have call predecessors, (92), 4 states have return successors, (92), 89 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-20 14:20:22,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5965 states to 5965 states and 8054 transitions. [2024-11-20 14:20:22,189 INFO L78 Accepts]: Start accepts. Automaton has 5965 states and 8054 transitions. Word has length 1590 [2024-11-20 14:20:22,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:20:22,191 INFO L471 AbstractCegarLoop]: Abstraction has 5965 states and 8054 transitions. [2024-11-20 14:20:22,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 105.65625) internal successors, (3381), 31 states have internal predecessors, (3381), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 14:20:22,192 INFO L276 IsEmpty]: Start isEmpty. Operand 5965 states and 8054 transitions. [2024-11-20 14:20:22,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2515 [2024-11-20 14:20:22,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:20:22,221 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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] [2024-11-20 14:20:22,257 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-20 14:20:22,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-20 14:20:22,422 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:20:22,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:20:22,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1332311313, now seen corresponding path program 1 times [2024-11-20 14:20:22,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:20:22,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795483938] [2024-11-20 14:20:22,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:20:22,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:20:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat