./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85fe539c4a9811cd5d49f239f4680cc0b3752a2958e9f287c34e302b923af4f9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:00:46,611 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:00:46,662 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:00:46,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:00:46,670 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:00:46,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:00:46,711 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:00:46,712 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:00:46,712 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:00:46,713 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:00:46,713 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:00:46,714 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:00:46,714 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:00:46,714 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:00:46,716 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:00:46,716 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:00:46,716 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:00:46,716 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:00:46,717 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:00:46,717 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:00:46,717 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:00:46,720 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:00:46,720 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:00:46,721 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:00:46,721 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:00:46,721 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:00:46,721 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:00:46,721 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:00:46,722 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:00:46,722 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:00:46,722 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:00:46,722 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:00:46,722 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:00:46,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:00:46,722 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:00:46,723 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:00:46,723 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:00:46,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:00:46,723 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:00:46,723 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:00:46,723 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:00:46,724 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:00:46,724 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85fe539c4a9811cd5d49f239f4680cc0b3752a2958e9f287c34e302b923af4f9 [2024-11-17 03:00:46,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:00:46,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:00:46,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:00:46,951 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:00:46,951 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:00:46,952 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-1.i [2024-11-17 03:00:48,196 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:00:48,454 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:00:48,455 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-1.i [2024-11-17 03:00:48,480 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35413a18d/65119972e46f4ccaa82eafabfb6664ef/FLAGf19ce9633 [2024-11-17 03:00:48,494 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35413a18d/65119972e46f4ccaa82eafabfb6664ef [2024-11-17 03:00:48,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:00:48,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:00:48,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:00:48,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:00:48,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:00:48,504 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:00:48" (1/1) ... [2024-11-17 03:00:48,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fef49a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:48, skipping insertion in model container [2024-11-17 03:00:48,505 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:00:48" (1/1) ... [2024-11-17 03:00:48,554 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:00:48,895 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:48,928 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:48,931 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:48,938 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:48,942 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:48,969 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:48,975 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:48,978 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:48,982 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:49,015 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:49,016 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:49,018 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:49,022 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:49,033 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:49,033 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:49,034 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:49,035 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:49,043 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:49,044 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:49,045 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:49,049 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:49,063 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:49,063 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:49,065 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:49,066 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 03:00:49,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:00:49,091 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:00:49,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:00:49,232 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:00:49,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:49 WrapperNode [2024-11-17 03:00:49,232 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:00:49,233 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:00:49,233 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:00:49,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:00:49,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:49" (1/1) ... [2024-11-17 03:00:49,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:49" (1/1) ... [2024-11-17 03:00:49,391 INFO L138 Inliner]: procedures = 177, calls = 507, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3362 [2024-11-17 03:00:49,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:00:49,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:00:49,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:00:49,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:00:49,405 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:49" (1/1) ... [2024-11-17 03:00:49,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:49" (1/1) ... [2024-11-17 03:00:49,429 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:49" (1/1) ... [2024-11-17 03:00:49,558 INFO L175 MemorySlicer]: Split 480 memory accesses to 3 slices as follows [2, 106, 372]. 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, 4, 82]. [2024-11-17 03:00:49,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:49" (1/1) ... [2024-11-17 03:00:49,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:49" (1/1) ... [2024-11-17 03:00:49,612 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:49" (1/1) ... [2024-11-17 03:00:49,618 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:49" (1/1) ... [2024-11-17 03:00:49,629 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:49" (1/1) ... [2024-11-17 03:00:49,639 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:49" (1/1) ... [2024-11-17 03:00:49,662 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:00:49,664 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:00:49,665 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:00:49,665 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:00:49,666 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:49" (1/1) ... [2024-11-17 03:00:49,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:00:49,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:00:49,696 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) [2024-11-17 03:00:49,699 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 [2024-11-17 03:00:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2024-11-17 03:00:49,737 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2024-11-17 03:00:49,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 03:00:49,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 03:00:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 03:00:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-17 03:00:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-17 03:00:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 03:00:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 03:00:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 03:00:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-17 03:00:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-17 03:00:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-17 03:00:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-17 03:00:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-17 03:00:49,739 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-17 03:00:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 03:00:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:00:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-17 03:00:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-17 03:00:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-17 03:00:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 03:00:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-17 03:00:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-17 03:00:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-17 03:00:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 03:00:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:00:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 03:00:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 03:00:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:00:49,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:00:49,968 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:00:49,970 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:00:52,842 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L731: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2024-11-17 03:00:53,070 INFO L? ?]: Removed 2487 outVars from TransFormulas that were not future-live. [2024-11-17 03:00:53,070 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:00:53,151 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:00:53,151 INFO L336 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-17 03:00:53,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:00:53 BoogieIcfgContainer [2024-11-17 03:00:53,152 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:00:53,154 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:00:53,155 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:00:53,157 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:00:53,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:00:48" (1/3) ... [2024-11-17 03:00:53,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b326a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:00:53, skipping insertion in model container [2024-11-17 03:00:53,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:49" (2/3) ... [2024-11-17 03:00:53,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b326a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:00:53, skipping insertion in model container [2024-11-17 03:00:53,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:00:53" (3/3) ... [2024-11-17 03:00:53,159 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test10-1.i [2024-11-17 03:00:53,172 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:00:53,173 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 986 error locations. [2024-11-17 03:00:53,244 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:00:53,249 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;@3096a1ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:00:53,250 INFO L334 AbstractCegarLoop]: Starting to check reachability of 986 error locations. [2024-11-17 03:00:53,267 INFO L276 IsEmpty]: Start isEmpty. Operand has 2697 states, 1699 states have (on average 1.9505591524426134) internal successors, (3314), 2683 states have internal predecessors, (3314), 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) [2024-11-17 03:00:53,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-17 03:00:53,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:00:53,281 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-17 03:00:53,281 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr983REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:00:53,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:00:53,286 INFO L85 PathProgramCache]: Analyzing trace with hash 3466530, now seen corresponding path program 1 times [2024-11-17 03:00:53,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:00:53,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219880907] [2024-11-17 03:00:53,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:00:53,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:00:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:00:53,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:00:53,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:00:53,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219880907] [2024-11-17 03:00:53,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219880907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:00:53,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:00:53,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:00:53,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305872346] [2024-11-17 03:00:53,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:00:53,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:00:53,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:00:53,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:00:53,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:00:53,524 INFO L87 Difference]: Start difference. First operand has 2697 states, 1699 states have (on average 1.9505591524426134) internal successors, (3314), 2683 states have internal predecessors, (3314), 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 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:00:55,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:00:55,100 INFO L93 Difference]: Finished difference Result 3290 states and 3861 transitions. [2024-11-17 03:00:55,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:00:55,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-17 03:00:55,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:00:55,133 INFO L225 Difference]: With dead ends: 3290 [2024-11-17 03:00:55,133 INFO L226 Difference]: Without dead ends: 3287 [2024-11-17 03:00:55,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:00:55,139 INFO L432 NwaCegarLoop]: 2120 mSDtfsCounter, 2912 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2922 SdHoareTripleChecker+Valid, 2644 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-17 03:00:55,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2922 Valid, 2644 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-17 03:00:55,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2024-11-17 03:00:55,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 2936. [2024-11-17 03:00:55,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 1966 states have (on average 1.8453713123092574) internal successors, (3628), 2920 states have internal predecessors, (3628), 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) [2024-11-17 03:00:55,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 3660 transitions. [2024-11-17 03:00:55,241 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 3660 transitions. Word has length 3 [2024-11-17 03:00:55,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:00:55,242 INFO L471 AbstractCegarLoop]: Abstraction has 2936 states and 3660 transitions. [2024-11-17 03:00:55,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:00:55,242 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 3660 transitions. [2024-11-17 03:00:55,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-17 03:00:55,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:00:55,242 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-17 03:00:55,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:00:55,243 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr984REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:00:55,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:00:55,243 INFO L85 PathProgramCache]: Analyzing trace with hash 3466531, now seen corresponding path program 1 times [2024-11-17 03:00:55,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:00:55,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312841719] [2024-11-17 03:00:55,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:00:55,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:00:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:00:55,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:00:55,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:00:55,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312841719] [2024-11-17 03:00:55,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312841719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:00:55,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:00:55,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:00:55,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506632974] [2024-11-17 03:00:55,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:00:55,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:00:55,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:00:55,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:00:55,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:00:55,322 INFO L87 Difference]: Start difference. First operand 2936 states and 3660 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:00:56,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:00:56,810 INFO L93 Difference]: Finished difference Result 4134 states and 5162 transitions. [2024-11-17 03:00:56,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:00:56,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-17 03:00:56,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:00:56,822 INFO L225 Difference]: With dead ends: 4134 [2024-11-17 03:00:56,822 INFO L226 Difference]: Without dead ends: 4134 [2024-11-17 03:00:56,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:00:56,824 INFO L432 NwaCegarLoop]: 2671 mSDtfsCounter, 1496 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 4707 SdHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-17 03:00:56,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 4707 Invalid, 1582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-17 03:00:56,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4134 states. [2024-11-17 03:00:56,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4134 to 3806. [2024-11-17 03:00:56,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 2834 states have (on average 1.808045165843331) internal successors, (5124), 3787 states have internal predecessors, (5124), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-17 03:00:56,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 5162 transitions. [2024-11-17 03:00:56,875 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 5162 transitions. Word has length 3 [2024-11-17 03:00:56,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:00:56,875 INFO L471 AbstractCegarLoop]: Abstraction has 3806 states and 5162 transitions. [2024-11-17 03:00:56,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:00:56,875 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 5162 transitions. [2024-11-17 03:00:56,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-17 03:00:56,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:00:56,876 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:00:56,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:00:56,876 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr980REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:00:56,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:00:56,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1025058789, now seen corresponding path program 1 times [2024-11-17 03:00:56,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:00:56,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98995071] [2024-11-17 03:00:56,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:00:56,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:00:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:00:57,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:00:57,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:00:57,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98995071] [2024-11-17 03:00:57,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98995071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:00:57,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:00:57,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:00:57,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654258257] [2024-11-17 03:00:57,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:00:57,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:00:57,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:00:57,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:00:57,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:00:57,056 INFO L87 Difference]: Start difference. First operand 3806 states and 5162 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:00,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:00,228 INFO L93 Difference]: Finished difference Result 7114 states and 8694 transitions. [2024-11-17 03:01:00,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:01:00,228 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-17 03:01:00,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:00,246 INFO L225 Difference]: With dead ends: 7114 [2024-11-17 03:01:00,246 INFO L226 Difference]: Without dead ends: 7114 [2024-11-17 03:01:00,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:01:00,248 INFO L432 NwaCegarLoop]: 2512 mSDtfsCounter, 9699 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 4357 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9702 SdHoareTripleChecker+Valid, 5708 SdHoareTripleChecker+Invalid, 4419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 4357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:00,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9702 Valid, 5708 Invalid, 4419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 4357 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-17 03:01:00,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2024-11-17 03:01:00,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 4844. [2024-11-17 03:01:00,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4844 states, 3872 states have (on average 1.8403925619834711) internal successors, (7126), 4819 states have internal predecessors, (7126), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 03:01:00,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4844 states to 4844 states and 7176 transitions. [2024-11-17 03:01:00,326 INFO L78 Accepts]: Start accepts. Automaton has 4844 states and 7176 transitions. Word has length 8 [2024-11-17 03:01:00,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:00,327 INFO L471 AbstractCegarLoop]: Abstraction has 4844 states and 7176 transitions. [2024-11-17 03:01:00,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:00,327 INFO L276 IsEmpty]: Start isEmpty. Operand 4844 states and 7176 transitions. [2024-11-17 03:01:00,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-17 03:01:00,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:00,327 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:00,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:01:00,328 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr977REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:00,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:00,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1712048008, now seen corresponding path program 1 times [2024-11-17 03:01:00,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:00,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365788452] [2024-11-17 03:01:00,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:00,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:00,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:00,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:00,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365788452] [2024-11-17 03:01:00,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365788452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:00,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:00,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:01:00,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320789665] [2024-11-17 03:01:00,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:00,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:01:00,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:00,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:01:00,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:01:00,368 INFO L87 Difference]: Start difference. First operand 4844 states and 7176 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:01,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:01,459 INFO L93 Difference]: Finished difference Result 5953 states and 8467 transitions. [2024-11-17 03:01:01,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:01:01,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-17 03:01:01,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:01,474 INFO L225 Difference]: With dead ends: 5953 [2024-11-17 03:01:01,475 INFO L226 Difference]: Without dead ends: 5953 [2024-11-17 03:01:01,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:01:01,479 INFO L432 NwaCegarLoop]: 3399 mSDtfsCounter, 2883 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 4518 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:01,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2893 Valid, 4518 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-17 03:01:01,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5953 states. [2024-11-17 03:01:01,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5953 to 4752. [2024-11-17 03:01:01,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4752 states, 3872 states have (on average 1.7848657024793388) internal successors, (6911), 4727 states have internal predecessors, (6911), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 03:01:01,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4752 states to 4752 states and 6961 transitions. [2024-11-17 03:01:01,545 INFO L78 Accepts]: Start accepts. Automaton has 4752 states and 6961 transitions. Word has length 9 [2024-11-17 03:01:01,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:01,545 INFO L471 AbstractCegarLoop]: Abstraction has 4752 states and 6961 transitions. [2024-11-17 03:01:01,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:01,545 INFO L276 IsEmpty]: Start isEmpty. Operand 4752 states and 6961 transitions. [2024-11-17 03:01:01,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-17 03:01:01,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:01,546 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:01,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:01:01,547 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr978REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:01,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:01,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1712048007, now seen corresponding path program 1 times [2024-11-17 03:01:01,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:01,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985516118] [2024-11-17 03:01:01,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:01,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:01,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:01,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:01,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985516118] [2024-11-17 03:01:01,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985516118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:01,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:01,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:01:01,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614694646] [2024-11-17 03:01:01,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:01,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:01:01,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:01,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:01:01,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:01:01,614 INFO L87 Difference]: Start difference. First operand 4752 states and 6961 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:02,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:02,850 INFO L93 Difference]: Finished difference Result 7560 states and 10987 transitions. [2024-11-17 03:01:02,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:01:02,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-17 03:01:02,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:02,868 INFO L225 Difference]: With dead ends: 7560 [2024-11-17 03:01:02,868 INFO L226 Difference]: Without dead ends: 7560 [2024-11-17 03:01:02,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:01:02,869 INFO L432 NwaCegarLoop]: 3756 mSDtfsCounter, 2355 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2359 SdHoareTripleChecker+Valid, 5473 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:02,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2359 Valid, 5473 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-17 03:01:02,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7560 states. [2024-11-17 03:01:02,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7560 to 5302. [2024-11-17 03:01:02,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 4432 states have (on average 1.776398916967509) internal successors, (7873), 5277 states have internal predecessors, (7873), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 03:01:02,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 7923 transitions. [2024-11-17 03:01:02,961 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 7923 transitions. Word has length 9 [2024-11-17 03:01:02,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:02,961 INFO L471 AbstractCegarLoop]: Abstraction has 5302 states and 7923 transitions. [2024-11-17 03:01:02,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:02,961 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 7923 transitions. [2024-11-17 03:01:02,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-17 03:01:02,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:02,962 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:02,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:01:02,962 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr345REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:02,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:02,963 INFO L85 PathProgramCache]: Analyzing trace with hash -11078433, now seen corresponding path program 1 times [2024-11-17 03:01:02,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:02,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907236912] [2024-11-17 03:01:02,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:02,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:03,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:03,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:03,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907236912] [2024-11-17 03:01:03,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907236912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:03,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:03,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:01:03,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694687527] [2024-11-17 03:01:03,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:03,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:01:03,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:03,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:01:03,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:01:03,026 INFO L87 Difference]: Start difference. First operand 5302 states and 7923 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:03,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:03,386 INFO L93 Difference]: Finished difference Result 7337 states and 10735 transitions. [2024-11-17 03:01:03,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:01:03,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-17 03:01:03,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:03,397 INFO L225 Difference]: With dead ends: 7337 [2024-11-17 03:01:03,397 INFO L226 Difference]: Without dead ends: 7337 [2024-11-17 03:01:03,398 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 [2024-11-17 03:01:03,398 INFO L432 NwaCegarLoop]: 3137 mSDtfsCounter, 1467 mSDsluCounter, 5909 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 9046 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:03,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 9046 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-17 03:01:03,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7337 states. [2024-11-17 03:01:03,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7337 to 5305. [2024-11-17 03:01:03,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5305 states, 4435 states have (on average 1.7758737316798197) internal successors, (7876), 5280 states have internal predecessors, (7876), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 03:01:03,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5305 states to 5305 states and 7926 transitions. [2024-11-17 03:01:03,467 INFO L78 Accepts]: Start accepts. Automaton has 5305 states and 7926 transitions. Word has length 13 [2024-11-17 03:01:03,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:03,467 INFO L471 AbstractCegarLoop]: Abstraction has 5305 states and 7926 transitions. [2024-11-17 03:01:03,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:03,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5305 states and 7926 transitions. [2024-11-17 03:01:03,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-17 03:01:03,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:03,468 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] [2024-11-17 03:01:03,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:01:03,469 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr967REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:03,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:03,469 INFO L85 PathProgramCache]: Analyzing trace with hash 260256747, now seen corresponding path program 1 times [2024-11-17 03:01:03,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:03,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595509423] [2024-11-17 03:01:03,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:03,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:03,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:03,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:03,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595509423] [2024-11-17 03:01:03,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595509423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:03,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:03,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:01:03,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135601751] [2024-11-17 03:01:03,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:03,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:01:03,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:03,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:01:03,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:01:03,541 INFO L87 Difference]: Start difference. First operand 5305 states and 7926 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:04,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:04,569 INFO L93 Difference]: Finished difference Result 5380 states and 8032 transitions. [2024-11-17 03:01:04,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:01:04,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-17 03:01:04,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:04,577 INFO L225 Difference]: With dead ends: 5380 [2024-11-17 03:01:04,577 INFO L226 Difference]: Without dead ends: 5380 [2024-11-17 03:01:04,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:01:04,578 INFO L432 NwaCegarLoop]: 1948 mSDtfsCounter, 3146 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 2244 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3156 SdHoareTripleChecker+Valid, 3781 SdHoareTripleChecker+Invalid, 2276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:04,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3156 Valid, 3781 Invalid, 2276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2244 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-17 03:01:04,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5380 states. [2024-11-17 03:01:04,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5380 to 5282. [2024-11-17 03:01:04,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5282 states, 4435 states have (on average 1.765501691093574) internal successors, (7830), 5257 states have internal predecessors, (7830), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 03:01:04,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5282 states to 5282 states and 7880 transitions. [2024-11-17 03:01:04,630 INFO L78 Accepts]: Start accepts. Automaton has 5282 states and 7880 transitions. Word has length 22 [2024-11-17 03:01:04,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:04,630 INFO L471 AbstractCegarLoop]: Abstraction has 5282 states and 7880 transitions. [2024-11-17 03:01:04,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:04,631 INFO L276 IsEmpty]: Start isEmpty. Operand 5282 states and 7880 transitions. [2024-11-17 03:01:04,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-17 03:01:04,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:04,632 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] [2024-11-17 03:01:04,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 03:01:04,632 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr968REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:04,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:04,632 INFO L85 PathProgramCache]: Analyzing trace with hash 260256748, now seen corresponding path program 1 times [2024-11-17 03:01:04,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:04,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171511427] [2024-11-17 03:01:04,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:04,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:04,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:04,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:04,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171511427] [2024-11-17 03:01:04,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171511427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:04,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:04,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:01:04,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202984] [2024-11-17 03:01:04,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:04,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:01:04,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:04,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:01:04,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:01:04,685 INFO L87 Difference]: Start difference. First operand 5282 states and 7880 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:04,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:04,845 INFO L93 Difference]: Finished difference Result 5144 states and 7674 transitions. [2024-11-17 03:01:04,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:01:04,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-17 03:01:04,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:04,852 INFO L225 Difference]: With dead ends: 5144 [2024-11-17 03:01:04,853 INFO L226 Difference]: Without dead ends: 5144 [2024-11-17 03:01:04,853 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 [2024-11-17 03:01:04,853 INFO L432 NwaCegarLoop]: 2789 mSDtfsCounter, 61 mSDsluCounter, 2735 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 5524 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:04,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 5524 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 03:01:04,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5144 states. [2024-11-17 03:01:04,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5144 to 5144. [2024-11-17 03:01:04,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5144 states, 4309 states have (on average 1.7693200278486887) internal successors, (7624), 5119 states have internal predecessors, (7624), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 03:01:04,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5144 states to 5144 states and 7674 transitions. [2024-11-17 03:01:04,960 INFO L78 Accepts]: Start accepts. Automaton has 5144 states and 7674 transitions. Word has length 22 [2024-11-17 03:01:04,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:04,960 INFO L471 AbstractCegarLoop]: Abstraction has 5144 states and 7674 transitions. [2024-11-17 03:01:04,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:04,961 INFO L276 IsEmpty]: Start isEmpty. Operand 5144 states and 7674 transitions. [2024-11-17 03:01:04,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-17 03:01:04,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:04,961 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] [2024-11-17 03:01:04,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 03:01:04,962 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr659REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:04,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:04,962 INFO L85 PathProgramCache]: Analyzing trace with hash 2008294252, now seen corresponding path program 1 times [2024-11-17 03:01:04,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:04,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232362122] [2024-11-17 03:01:04,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:04,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:05,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:05,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:05,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232362122] [2024-11-17 03:01:05,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232362122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:05,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:05,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:01:05,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418496394] [2024-11-17 03:01:05,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:05,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:01:05,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:05,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:01:05,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:01:05,047 INFO L87 Difference]: Start difference. First operand 5144 states and 7674 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:05,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:05,382 INFO L93 Difference]: Finished difference Result 7078 states and 10356 transitions. [2024-11-17 03:01:05,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:01:05,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-17 03:01:05,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:05,393 INFO L225 Difference]: With dead ends: 7078 [2024-11-17 03:01:05,393 INFO L226 Difference]: Without dead ends: 7078 [2024-11-17 03:01:05,393 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 [2024-11-17 03:01:05,394 INFO L432 NwaCegarLoop]: 3024 mSDtfsCounter, 1330 mSDsluCounter, 5679 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 8703 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:05,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 8703 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-17 03:01:05,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7078 states. [2024-11-17 03:01:05,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7078 to 5154. [2024-11-17 03:01:05,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5154 states, 4319 states have (on average 1.767538782125492) internal successors, (7634), 5129 states have internal predecessors, (7634), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 03:01:05,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5154 states to 5154 states and 7684 transitions. [2024-11-17 03:01:05,467 INFO L78 Accepts]: Start accepts. Automaton has 5154 states and 7684 transitions. Word has length 22 [2024-11-17 03:01:05,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:05,467 INFO L471 AbstractCegarLoop]: Abstraction has 5154 states and 7684 transitions. [2024-11-17 03:01:05,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:05,467 INFO L276 IsEmpty]: Start isEmpty. Operand 5154 states and 7684 transitions. [2024-11-17 03:01:05,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-17 03:01:05,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:05,468 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] [2024-11-17 03:01:05,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 03:01:05,468 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr944REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:05,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:05,469 INFO L85 PathProgramCache]: Analyzing trace with hash 998586895, now seen corresponding path program 1 times [2024-11-17 03:01:05,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:05,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257080582] [2024-11-17 03:01:05,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:05,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:05,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:05,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:05,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257080582] [2024-11-17 03:01:05,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257080582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:05,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:05,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:01:05,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760831588] [2024-11-17 03:01:05,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:05,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:01:05,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:05,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:01:05,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:01:05,517 INFO L87 Difference]: Start difference. First operand 5154 states and 7684 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:05,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:05,732 INFO L93 Difference]: Finished difference Result 5131 states and 7640 transitions. [2024-11-17 03:01:05,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:01:05,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-17 03:01:05,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:05,740 INFO L225 Difference]: With dead ends: 5131 [2024-11-17 03:01:05,740 INFO L226 Difference]: Without dead ends: 5131 [2024-11-17 03:01:05,741 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 [2024-11-17 03:01:05,741 INFO L432 NwaCegarLoop]: 2751 mSDtfsCounter, 45 mSDsluCounter, 5478 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 8229 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:05,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 8229 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 03:01:05,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2024-11-17 03:01:05,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2024-11-17 03:01:05,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4303 states have (on average 1.763885661166628) internal successors, (7590), 5106 states have internal predecessors, (7590), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 03:01:05,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7640 transitions. [2024-11-17 03:01:05,786 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7640 transitions. Word has length 24 [2024-11-17 03:01:05,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:05,786 INFO L471 AbstractCegarLoop]: Abstraction has 5131 states and 7640 transitions. [2024-11-17 03:01:05,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:05,786 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7640 transitions. [2024-11-17 03:01:05,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-17 03:01:05,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:05,791 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] [2024-11-17 03:01:05,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 03:01:05,791 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr930REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:05,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:05,792 INFO L85 PathProgramCache]: Analyzing trace with hash 344062853, now seen corresponding path program 1 times [2024-11-17 03:01:05,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:05,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143600674] [2024-11-17 03:01:05,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:05,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:05,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:05,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:05,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143600674] [2024-11-17 03:01:05,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143600674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:05,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:05,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:01:05,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787437509] [2024-11-17 03:01:05,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:05,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:01:05,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:05,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:01:05,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:01:05,901 INFO L87 Difference]: Start difference. First operand 5131 states and 7640 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:07,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:07,453 INFO L93 Difference]: Finished difference Result 7483 states and 10848 transitions. [2024-11-17 03:01:07,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:01:07,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-17 03:01:07,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:07,464 INFO L225 Difference]: With dead ends: 7483 [2024-11-17 03:01:07,464 INFO L226 Difference]: Without dead ends: 7483 [2024-11-17 03:01:07,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:01:07,465 INFO L432 NwaCegarLoop]: 2227 mSDtfsCounter, 2354 mSDsluCounter, 3521 mSDsCounter, 0 mSdLazyCounter, 2709 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2358 SdHoareTripleChecker+Valid, 5748 SdHoareTripleChecker+Invalid, 2712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:07,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2358 Valid, 5748 Invalid, 2712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2709 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-17 03:01:07,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7483 states. [2024-11-17 03:01:07,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7483 to 5127. [2024-11-17 03:01:07,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 4303 states have (on average 1.762026493144318) internal successors, (7582), 5102 states have internal predecessors, (7582), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 03:01:07,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 7632 transitions. [2024-11-17 03:01:07,520 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 7632 transitions. Word has length 38 [2024-11-17 03:01:07,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:07,521 INFO L471 AbstractCegarLoop]: Abstraction has 5127 states and 7632 transitions. [2024-11-17 03:01:07,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:07,521 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 7632 transitions. [2024-11-17 03:01:07,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-17 03:01:07,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:07,524 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:07,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 03:01:07,524 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr915REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:07,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:07,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1148214010, now seen corresponding path program 1 times [2024-11-17 03:01:07,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:07,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526472746] [2024-11-17 03:01:07,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:07,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:07,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:07,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:07,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526472746] [2024-11-17 03:01:07,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526472746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:07,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:07,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:01:07,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002834931] [2024-11-17 03:01:07,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:07,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:01:07,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:07,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:01:07,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:01:07,651 INFO L87 Difference]: Start difference. First operand 5127 states and 7632 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:07,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:07,836 INFO L93 Difference]: Finished difference Result 5115 states and 7612 transitions. [2024-11-17 03:01:07,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:01:07,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-17 03:01:07,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:07,842 INFO L225 Difference]: With dead ends: 5115 [2024-11-17 03:01:07,842 INFO L226 Difference]: Without dead ends: 5115 [2024-11-17 03:01:07,842 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 [2024-11-17 03:01:07,842 INFO L432 NwaCegarLoop]: 2749 mSDtfsCounter, 21 mSDsluCounter, 5466 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 8215 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:07,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 8215 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 03:01:07,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5115 states. [2024-11-17 03:01:07,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5115 to 5115. [2024-11-17 03:01:07,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 4291 states have (on average 1.7622931717548358) internal successors, (7562), 5090 states have internal predecessors, (7562), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 03:01:07,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 7612 transitions. [2024-11-17 03:01:07,893 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 7612 transitions. Word has length 73 [2024-11-17 03:01:07,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:07,893 INFO L471 AbstractCegarLoop]: Abstraction has 5115 states and 7612 transitions. [2024-11-17 03:01:07,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:07,893 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 7612 transitions. [2024-11-17 03:01:07,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-17 03:01:07,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:07,894 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:07,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-17 03:01:07,894 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr915REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:07,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:07,895 INFO L85 PathProgramCache]: Analyzing trace with hash -2044010690, now seen corresponding path program 1 times [2024-11-17 03:01:07,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:07,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885637968] [2024-11-17 03:01:07,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:07,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:07,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:07,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:07,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885637968] [2024-11-17 03:01:07,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885637968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:07,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:07,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:01:07,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863414550] [2024-11-17 03:01:07,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:07,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:01:07,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:07,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:01:07,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:01:07,978 INFO L87 Difference]: Start difference. First operand 5115 states and 7612 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:08,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:08,253 INFO L93 Difference]: Finished difference Result 6648 states and 9820 transitions. [2024-11-17 03:01:08,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:01:08,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-17 03:01:08,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:08,259 INFO L225 Difference]: With dead ends: 6648 [2024-11-17 03:01:08,260 INFO L226 Difference]: Without dead ends: 6648 [2024-11-17 03:01:08,260 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 [2024-11-17 03:01:08,260 INFO L432 NwaCegarLoop]: 2766 mSDtfsCounter, 1097 mSDsluCounter, 2702 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 5468 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:08,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 5468 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 03:01:08,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6648 states. [2024-11-17 03:01:08,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6648 to 5984. [2024-11-17 03:01:08,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5984 states, 5156 states have (on average 1.7447633824670288) internal successors, (8996), 5955 states have internal predecessors, (8996), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 26 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-17 03:01:08,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5984 states to 5984 states and 9054 transitions. [2024-11-17 03:01:08,339 INFO L78 Accepts]: Start accepts. Automaton has 5984 states and 9054 transitions. Word has length 81 [2024-11-17 03:01:08,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:08,340 INFO L471 AbstractCegarLoop]: Abstraction has 5984 states and 9054 transitions. [2024-11-17 03:01:08,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:08,340 INFO L276 IsEmpty]: Start isEmpty. Operand 5984 states and 9054 transitions. [2024-11-17 03:01:08,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-17 03:01:08,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:08,342 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:08,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-17 03:01:08,342 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr886REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:08,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:08,343 INFO L85 PathProgramCache]: Analyzing trace with hash 924536959, now seen corresponding path program 1 times [2024-11-17 03:01:08,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:08,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967284483] [2024-11-17 03:01:08,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:08,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:08,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:08,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:08,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967284483] [2024-11-17 03:01:08,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967284483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:08,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:08,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:01:08,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420881688] [2024-11-17 03:01:08,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:08,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:01:08,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:08,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:01:08,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:01:08,697 INFO L87 Difference]: Start difference. First operand 5984 states and 9054 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:10,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:10,087 INFO L93 Difference]: Finished difference Result 5900 states and 8855 transitions. [2024-11-17 03:01:10,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:01:10,087 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-17 03:01:10,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:10,092 INFO L225 Difference]: With dead ends: 5900 [2024-11-17 03:01:10,092 INFO L226 Difference]: Without dead ends: 5900 [2024-11-17 03:01:10,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:01:10,093 INFO L432 NwaCegarLoop]: 1481 mSDtfsCounter, 2701 mSDsluCounter, 1488 mSDsCounter, 0 mSdLazyCounter, 2689 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 2782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:10,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2711 Valid, 2969 Invalid, 2782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2689 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-17 03:01:10,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5900 states. [2024-11-17 03:01:10,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5900 to 5340. [2024-11-17 03:01:10,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5340 states, 4596 states have (on average 1.7003916449086163) internal successors, (7815), 5311 states have internal predecessors, (7815), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 26 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-17 03:01:10,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5340 states to 5340 states and 7873 transitions. [2024-11-17 03:01:10,133 INFO L78 Accepts]: Start accepts. Automaton has 5340 states and 7873 transitions. Word has length 84 [2024-11-17 03:01:10,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:10,133 INFO L471 AbstractCegarLoop]: Abstraction has 5340 states and 7873 transitions. [2024-11-17 03:01:10,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:10,134 INFO L276 IsEmpty]: Start isEmpty. Operand 5340 states and 7873 transitions. [2024-11-17 03:01:10,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-17 03:01:10,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:10,134 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:10,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-17 03:01:10,135 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr879REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:10,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:10,135 INFO L85 PathProgramCache]: Analyzing trace with hash 137439817, now seen corresponding path program 1 times [2024-11-17 03:01:10,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:10,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651530733] [2024-11-17 03:01:10,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:10,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:10,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:10,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:10,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651530733] [2024-11-17 03:01:10,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651530733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:10,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:10,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:01:10,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306479081] [2024-11-17 03:01:10,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:10,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:01:10,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:10,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:01:10,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:01:10,302 INFO L87 Difference]: Start difference. First operand 5340 states and 7873 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:11,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:11,507 INFO L93 Difference]: Finished difference Result 5339 states and 7871 transitions. [2024-11-17 03:01:11,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:01:11,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-17 03:01:11,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:11,514 INFO L225 Difference]: With dead ends: 5339 [2024-11-17 03:01:11,514 INFO L226 Difference]: Without dead ends: 5339 [2024-11-17 03:01:11,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:01:11,514 INFO L432 NwaCegarLoop]: 2676 mSDtfsCounter, 2 mSDsluCounter, 5537 mSDsCounter, 0 mSdLazyCounter, 2942 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8213 SdHoareTripleChecker+Invalid, 2943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:11,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8213 Invalid, 2943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2942 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-17 03:01:11,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5339 states. [2024-11-17 03:01:11,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5339 to 5339. [2024-11-17 03:01:11,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 4596 states have (on average 1.6999564838990426) internal successors, (7813), 5310 states have internal predecessors, (7813), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 26 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-17 03:01:11,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 7871 transitions. [2024-11-17 03:01:11,587 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 7871 transitions. Word has length 89 [2024-11-17 03:01:11,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:11,587 INFO L471 AbstractCegarLoop]: Abstraction has 5339 states and 7871 transitions. [2024-11-17 03:01:11,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:11,588 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 7871 transitions. [2024-11-17 03:01:11,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-17 03:01:11,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:11,589 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:11,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-17 03:01:11,589 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr880REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:11,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:11,591 INFO L85 PathProgramCache]: Analyzing trace with hash 137439818, now seen corresponding path program 1 times [2024-11-17 03:01:11,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:11,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476390048] [2024-11-17 03:01:11,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:11,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:11,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:11,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:11,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476390048] [2024-11-17 03:01:11,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476390048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:11,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:11,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:01:11,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663195947] [2024-11-17 03:01:11,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:11,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:01:11,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:11,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:01:11,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:01:11,924 INFO L87 Difference]: Start difference. First operand 5339 states and 7871 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:13,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:13,331 INFO L93 Difference]: Finished difference Result 5338 states and 7869 transitions. [2024-11-17 03:01:13,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:01:13,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-17 03:01:13,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:13,336 INFO L225 Difference]: With dead ends: 5338 [2024-11-17 03:01:13,336 INFO L226 Difference]: Without dead ends: 5338 [2024-11-17 03:01:13,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:01:13,337 INFO L432 NwaCegarLoop]: 2676 mSDtfsCounter, 1 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 2959 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8193 SdHoareTripleChecker+Invalid, 2960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:13,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8193 Invalid, 2960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2959 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-17 03:01:13,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5338 states. [2024-11-17 03:01:13,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5338 to 5338. [2024-11-17 03:01:13,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 4594 states have (on average 1.7002612102742707) internal successors, (7811), 5309 states have internal predecessors, (7811), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 26 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-17 03:01:13,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 7869 transitions. [2024-11-17 03:01:13,373 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 7869 transitions. Word has length 89 [2024-11-17 03:01:13,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:13,373 INFO L471 AbstractCegarLoop]: Abstraction has 5338 states and 7869 transitions. [2024-11-17 03:01:13,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:01:13,373 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 7869 transitions. [2024-11-17 03:01:13,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-17 03:01:13,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:13,374 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:13,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-17 03:01:13,374 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr875REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:13,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:13,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1644512198, now seen corresponding path program 1 times [2024-11-17 03:01:13,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:13,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632619885] [2024-11-17 03:01:13,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:13,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:13,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-17 03:01:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:13,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:13,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:13,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632619885] [2024-11-17 03:01:13,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632619885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:13,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:13,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:01:13,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460706339] [2024-11-17 03:01:13,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:13,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:01:13,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:13,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:01:13,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:01:13,568 INFO L87 Difference]: Start difference. First operand 5338 states and 7869 transitions. Second operand has 7 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 03:01:15,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:15,541 INFO L93 Difference]: Finished difference Result 5356 states and 7904 transitions. [2024-11-17 03:01:15,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 03:01:15,542 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2024-11-17 03:01:15,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:15,552 INFO L225 Difference]: With dead ends: 5356 [2024-11-17 03:01:15,552 INFO L226 Difference]: Without dead ends: 5356 [2024-11-17 03:01:15,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-17 03:01:15,552 INFO L432 NwaCegarLoop]: 2640 mSDtfsCounter, 31 mSDsluCounter, 10095 mSDsCounter, 0 mSdLazyCounter, 3965 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 12735 SdHoareTripleChecker+Invalid, 3976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:15,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 12735 Invalid, 3976 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 3965 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-17 03:01:15,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5356 states. [2024-11-17 03:01:15,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5356 to 5347. [2024-11-17 03:01:15,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 4602 states have (on average 1.6996957844415472) internal successors, (7822), 5316 states have internal predecessors, (7822), 29 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (43), 28 states have call predecessors, (43), 29 states have call successors, (43) [2024-11-17 03:01:15,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 7894 transitions. [2024-11-17 03:01:15,623 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 7894 transitions. Word has length 97 [2024-11-17 03:01:15,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:15,623 INFO L471 AbstractCegarLoop]: Abstraction has 5347 states and 7894 transitions. [2024-11-17 03:01:15,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 03:01:15,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 7894 transitions. [2024-11-17 03:01:15,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-17 03:01:15,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:15,624 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:15,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-17 03:01:15,625 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr876REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:15,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:15,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1644512199, now seen corresponding path program 1 times [2024-11-17 03:01:15,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:15,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959738657] [2024-11-17 03:01:15,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:15,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:15,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-17 03:01:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:16,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:16,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:16,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959738657] [2024-11-17 03:01:16,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959738657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:16,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:16,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:01:16,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71357739] [2024-11-17 03:01:16,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:16,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:01:16,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:16,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:01:16,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:01:16,012 INFO L87 Difference]: Start difference. First operand 5347 states and 7894 transitions. Second operand has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 03:01:17,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:17,767 INFO L93 Difference]: Finished difference Result 5347 states and 7892 transitions. [2024-11-17 03:01:17,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:01:17,768 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2024-11-17 03:01:17,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:17,775 INFO L225 Difference]: With dead ends: 5347 [2024-11-17 03:01:17,775 INFO L226 Difference]: Without dead ends: 5347 [2024-11-17 03:01:17,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-17 03:01:17,775 INFO L432 NwaCegarLoop]: 2647 mSDtfsCounter, 26 mSDsluCounter, 10099 mSDsCounter, 0 mSdLazyCounter, 3914 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 12746 SdHoareTripleChecker+Invalid, 3923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:17,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 12746 Invalid, 3923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3914 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-17 03:01:17,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5347 states. [2024-11-17 03:01:17,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5347 to 5347. [2024-11-17 03:01:17,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 4602 states have (on average 1.6992611907866144) internal successors, (7820), 5316 states have internal predecessors, (7820), 29 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (43), 28 states have call predecessors, (43), 29 states have call successors, (43) [2024-11-17 03:01:17,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 7892 transitions. [2024-11-17 03:01:17,818 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 7892 transitions. Word has length 97 [2024-11-17 03:01:17,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:17,818 INFO L471 AbstractCegarLoop]: Abstraction has 5347 states and 7892 transitions. [2024-11-17 03:01:17,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 03:01:17,818 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 7892 transitions. [2024-11-17 03:01:17,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-17 03:01:17,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:17,819 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:17,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-17 03:01:17,819 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr875REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:17,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:17,820 INFO L85 PathProgramCache]: Analyzing trace with hash -419796283, now seen corresponding path program 1 times [2024-11-17 03:01:17,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:17,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743227881] [2024-11-17 03:01:17,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:17,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:18,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-17 03:01:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:18,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:18,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:18,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743227881] [2024-11-17 03:01:18,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743227881] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:01:18,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122356882] [2024-11-17 03:01:18,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:18,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:01:18,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:01:18,177 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) [2024-11-17 03:01:18,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 03:01:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:18,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-17 03:01:18,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:01:18,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-17 03:01:18,548 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-17 03:01:18,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-17 03:01:18,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-17 03:01:18,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-17 03:01:18,790 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:01:18,791 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-17 03:01:18,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-17 03:01:18,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:18,864 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:01:18,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122356882] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:01:18,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 03:01:18,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2024-11-17 03:01:18,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493041579] [2024-11-17 03:01:18,913 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 03:01:18,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-17 03:01:18,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:18,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-17 03:01:18,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=321, Unknown=5, NotChecked=0, Total=380 [2024-11-17 03:01:18,915 INFO L87 Difference]: Start difference. First operand 5347 states and 7892 transitions. Second operand has 19 states, 16 states have (on average 9.6875) internal successors, (155), 18 states have internal predecessors, (155), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:01:23,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:23,891 INFO L93 Difference]: Finished difference Result 5354 states and 7898 transitions. [2024-11-17 03:01:23,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 03:01:23,891 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 9.6875) internal successors, (155), 18 states have internal predecessors, (155), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 98 [2024-11-17 03:01:23,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:23,897 INFO L225 Difference]: With dead ends: 5354 [2024-11-17 03:01:23,897 INFO L226 Difference]: Without dead ends: 5354 [2024-11-17 03:01:23,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=508, Unknown=5, NotChecked=0, Total=600 [2024-11-17 03:01:23,898 INFO L432 NwaCegarLoop]: 1823 mSDtfsCounter, 2697 mSDsluCounter, 21613 mSDsCounter, 0 mSdLazyCounter, 12812 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2715 SdHoareTripleChecker+Valid, 23436 SdHoareTripleChecker+Invalid, 12838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 12812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:23,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2715 Valid, 23436 Invalid, 12838 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 12812 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-17 03:01:23,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5354 states. [2024-11-17 03:01:23,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5354 to 5351. [2024-11-17 03:01:23,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 4606 states have (on average 1.6984368215371255) internal successors, (7823), 5319 states have internal predecessors, (7823), 29 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (31), 28 states have call predecessors, (31), 29 states have call successors, (31) [2024-11-17 03:01:23,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 7883 transitions. [2024-11-17 03:01:23,939 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 7883 transitions. Word has length 98 [2024-11-17 03:01:23,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:23,939 INFO L471 AbstractCegarLoop]: Abstraction has 5351 states and 7883 transitions. [2024-11-17 03:01:23,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 9.6875) internal successors, (155), 18 states have internal predecessors, (155), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:01:23,940 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 7883 transitions. [2024-11-17 03:01:23,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-17 03:01:23,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:23,940 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:23,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 03:01:24,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:01:24,141 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr876REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:24,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:24,141 INFO L85 PathProgramCache]: Analyzing trace with hash -419796282, now seen corresponding path program 1 times [2024-11-17 03:01:24,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:24,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900705809] [2024-11-17 03:01:24,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:24,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:24,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-17 03:01:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:24,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:24,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:24,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900705809] [2024-11-17 03:01:24,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900705809] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:01:24,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224424246] [2024-11-17 03:01:24,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:24,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:01:24,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:01:24,745 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) [2024-11-17 03:01:24,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 03:01:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:24,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-17 03:01:24,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:01:24,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-17 03:01:25,072 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-17 03:01:25,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-17 03:01:25,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-17 03:01:25,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-17 03:01:25,100 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 13 treesize of output 9 [2024-11-17 03:01:25,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-17 03:01:25,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-17 03:01:25,240 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:01:25,240 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-17 03:01:25,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-17 03:01:25,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-17 03:01:25,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-17 03:01:25,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:25,292 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:01:25,376 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_827 (Array Int Int)) (v_ArrVal_826 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 20) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_826) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_827 (Array Int Int))) (<= 0 (+ 16 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-17 03:01:25,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224424246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:01:25,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 03:01:25,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2024-11-17 03:01:25,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118490424] [2024-11-17 03:01:25,379 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 03:01:25,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-17 03:01:25,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:25,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-17 03:01:25,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=360, Unknown=1, NotChecked=38, Total=462 [2024-11-17 03:01:25,380 INFO L87 Difference]: Start difference. First operand 5351 states and 7883 transitions. Second operand has 19 states, 16 states have (on average 9.6875) internal successors, (155), 18 states have internal predecessors, (155), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:01:30,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:30,215 INFO L93 Difference]: Finished difference Result 5353 states and 7896 transitions. [2024-11-17 03:01:30,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-17 03:01:30,215 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 9.6875) internal successors, (155), 18 states have internal predecessors, (155), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 98 [2024-11-17 03:01:30,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:30,221 INFO L225 Difference]: With dead ends: 5353 [2024-11-17 03:01:30,221 INFO L226 Difference]: Without dead ends: 5353 [2024-11-17 03:01:30,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=550, Unknown=1, NotChecked=48, Total=702 [2024-11-17 03:01:30,221 INFO L432 NwaCegarLoop]: 1829 mSDtfsCounter, 2714 mSDsluCounter, 15440 mSDsCounter, 0 mSdLazyCounter, 13420 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2732 SdHoareTripleChecker+Valid, 17269 SdHoareTripleChecker+Invalid, 13466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 13420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:30,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2732 Valid, 17269 Invalid, 13466 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 13420 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-17 03:01:30,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5353 states. [2024-11-17 03:01:30,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5353 to 5341. [2024-11-17 03:01:30,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5341 states, 4598 states have (on average 1.6989995650282732) internal successors, (7812), 5311 states have internal predecessors, (7812), 29 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (29), 26 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-17 03:01:30,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5341 states to 5341 states and 7870 transitions. [2024-11-17 03:01:30,262 INFO L78 Accepts]: Start accepts. Automaton has 5341 states and 7870 transitions. Word has length 98 [2024-11-17 03:01:30,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:30,263 INFO L471 AbstractCegarLoop]: Abstraction has 5341 states and 7870 transitions. [2024-11-17 03:01:30,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 9.6875) internal successors, (155), 18 states have internal predecessors, (155), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:01:30,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5341 states and 7870 transitions. [2024-11-17 03:01:30,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-17 03:01:30,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:30,264 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:30,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 03:01:30,468 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,SelfDestructingSolverStorable19 [2024-11-17 03:01:30,469 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr871REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:30,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:30,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1026074960, now seen corresponding path program 1 times [2024-11-17 03:01:30,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:30,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19991773] [2024-11-17 03:01:30,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:30,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:30,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-17 03:01:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:30,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:30,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:30,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19991773] [2024-11-17 03:01:30,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19991773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:30,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:30,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-17 03:01:30,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828489353] [2024-11-17 03:01:30,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:30,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 03:01:30,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:30,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 03:01:30,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-17 03:01:30,848 INFO L87 Difference]: Start difference. First operand 5341 states and 7870 transitions. Second operand has 14 states, 12 states have (on average 8.166666666666666) internal successors, (98), 13 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 03:01:33,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:33,850 INFO L93 Difference]: Finished difference Result 5360 states and 7904 transitions. [2024-11-17 03:01:33,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-17 03:01:33,851 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.166666666666666) internal successors, (98), 13 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2024-11-17 03:01:33,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:33,856 INFO L225 Difference]: With dead ends: 5360 [2024-11-17 03:01:33,856 INFO L226 Difference]: Without dead ends: 5360 [2024-11-17 03:01:33,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-11-17 03:01:33,858 INFO L432 NwaCegarLoop]: 1823 mSDtfsCounter, 2715 mSDsluCounter, 16193 mSDsCounter, 0 mSdLazyCounter, 9844 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2733 SdHoareTripleChecker+Valid, 18016 SdHoareTripleChecker+Invalid, 9868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 9844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:33,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2733 Valid, 18016 Invalid, 9868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 9844 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-17 03:01:33,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5360 states. [2024-11-17 03:01:33,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5360 to 5356. [2024-11-17 03:01:33,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5356 states, 4612 states have (on average 1.6975281873373806) internal successors, (7829), 5324 states have internal predecessors, (7829), 29 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (31), 28 states have call predecessors, (31), 29 states have call successors, (31) [2024-11-17 03:01:33,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5356 states to 5356 states and 7889 transitions. [2024-11-17 03:01:33,899 INFO L78 Accepts]: Start accepts. Automaton has 5356 states and 7889 transitions. Word has length 100 [2024-11-17 03:01:33,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:33,900 INFO L471 AbstractCegarLoop]: Abstraction has 5356 states and 7889 transitions. [2024-11-17 03:01:33,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.166666666666666) internal successors, (98), 13 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 03:01:33,900 INFO L276 IsEmpty]: Start isEmpty. Operand 5356 states and 7889 transitions. [2024-11-17 03:01:33,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-17 03:01:33,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:33,901 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:33,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-17 03:01:33,901 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr872REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:33,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:33,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1026074959, now seen corresponding path program 1 times [2024-11-17 03:01:33,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:33,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886685792] [2024-11-17 03:01:33,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:33,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:34,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-17 03:01:34,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:34,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:34,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:34,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886685792] [2024-11-17 03:01:34,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886685792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:34,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:34,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-17 03:01:34,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774584666] [2024-11-17 03:01:34,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:34,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 03:01:34,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:34,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 03:01:34,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-17 03:01:34,355 INFO L87 Difference]: Start difference. First operand 5356 states and 7889 transitions. Second operand has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 03:01:38,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:38,181 INFO L93 Difference]: Finished difference Result 5359 states and 7902 transitions. [2024-11-17 03:01:38,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 03:01:38,183 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2024-11-17 03:01:38,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:38,189 INFO L225 Difference]: With dead ends: 5359 [2024-11-17 03:01:38,189 INFO L226 Difference]: Without dead ends: 5359 [2024-11-17 03:01:38,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-17 03:01:38,195 INFO L432 NwaCegarLoop]: 1830 mSDtfsCounter, 2726 mSDsluCounter, 12596 mSDsCounter, 0 mSdLazyCounter, 10629 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2744 SdHoareTripleChecker+Valid, 14426 SdHoareTripleChecker+Invalid, 10651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 10629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:38,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2744 Valid, 14426 Invalid, 10651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 10629 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-17 03:01:38,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5359 states. [2024-11-17 03:01:38,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5359 to 5356. [2024-11-17 03:01:38,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5356 states, 4612 states have (on average 1.6970945359930616) internal successors, (7827), 5324 states have internal predecessors, (7827), 29 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (31), 28 states have call predecessors, (31), 29 states have call successors, (31) [2024-11-17 03:01:38,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5356 states to 5356 states and 7887 transitions. [2024-11-17 03:01:38,238 INFO L78 Accepts]: Start accepts. Automaton has 5356 states and 7887 transitions. Word has length 100 [2024-11-17 03:01:38,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:38,239 INFO L471 AbstractCegarLoop]: Abstraction has 5356 states and 7887 transitions. [2024-11-17 03:01:38,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 03:01:38,239 INFO L276 IsEmpty]: Start isEmpty. Operand 5356 states and 7887 transitions. [2024-11-17 03:01:38,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-17 03:01:38,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:38,240 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:38,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-17 03:01:38,240 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr871REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:38,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:38,240 INFO L85 PathProgramCache]: Analyzing trace with hash 796678993, now seen corresponding path program 1 times [2024-11-17 03:01:38,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:38,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065083674] [2024-11-17 03:01:38,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:38,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:38,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-17 03:01:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:38,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:38,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:38,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065083674] [2024-11-17 03:01:38,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065083674] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:01:38,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205652905] [2024-11-17 03:01:38,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:38,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:01:38,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:01:38,627 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) [2024-11-17 03:01:38,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 03:01:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:38,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-17 03:01:38,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:01:38,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-17 03:01:38,962 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-17 03:01:38,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-17 03:01:38,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-17 03:01:39,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-17 03:01:39,146 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:01:39,146 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-17 03:01:39,217 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:01:39,217 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-17 03:01:39,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-17 03:01:39,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:39,250 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:01:39,322 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1117 (Array Int Int)) (v_ArrVal_1114 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1117))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1114)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-17 03:01:39,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205652905] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:01:39,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 03:01:39,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9] total 21 [2024-11-17 03:01:39,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509553832] [2024-11-17 03:01:39,323 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 03:01:39,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-17 03:01:39,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:39,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-17 03:01:39,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=465, Unknown=11, NotChecked=44, Total=600 [2024-11-17 03:01:39,324 INFO L87 Difference]: Start difference. First operand 5356 states and 7887 transitions. Second operand has 22 states, 19 states have (on average 8.473684210526315) internal successors, (161), 21 states have internal predecessors, (161), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:01:44,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:44,645 INFO L93 Difference]: Finished difference Result 5358 states and 7900 transitions. [2024-11-17 03:01:44,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 03:01:44,648 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 8.473684210526315) internal successors, (161), 21 states have internal predecessors, (161), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 101 [2024-11-17 03:01:44,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:44,653 INFO L225 Difference]: With dead ends: 5358 [2024-11-17 03:01:44,654 INFO L226 Difference]: Without dead ends: 5358 [2024-11-17 03:01:44,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=640, Unknown=12, NotChecked=52, Total=812 [2024-11-17 03:01:44,654 INFO L432 NwaCegarLoop]: 1822 mSDtfsCounter, 2686 mSDsluCounter, 25193 mSDsCounter, 0 mSdLazyCounter, 14779 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2704 SdHoareTripleChecker+Valid, 27015 SdHoareTripleChecker+Invalid, 14804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 14779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:44,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2704 Valid, 27015 Invalid, 14804 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 14779 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-17 03:01:44,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5358 states. [2024-11-17 03:01:44,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5358 to 5355. [2024-11-17 03:01:44,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5355 states, 4612 states have (on average 1.6966608846487423) internal successors, (7825), 5323 states have internal predecessors, (7825), 29 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (31), 28 states have call predecessors, (31), 29 states have call successors, (31) [2024-11-17 03:01:44,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5355 states to 5355 states and 7885 transitions. [2024-11-17 03:01:44,689 INFO L78 Accepts]: Start accepts. Automaton has 5355 states and 7885 transitions. Word has length 101 [2024-11-17 03:01:44,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:44,690 INFO L471 AbstractCegarLoop]: Abstraction has 5355 states and 7885 transitions. [2024-11-17 03:01:44,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 8.473684210526315) internal successors, (161), 21 states have internal predecessors, (161), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:01:44,690 INFO L276 IsEmpty]: Start isEmpty. Operand 5355 states and 7885 transitions. [2024-11-17 03:01:44,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-17 03:01:44,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:44,691 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:44,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-17 03:01:44,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:01:44,891 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr872REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:44,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:44,892 INFO L85 PathProgramCache]: Analyzing trace with hash 796678994, now seen corresponding path program 1 times [2024-11-17 03:01:44,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:44,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565613752] [2024-11-17 03:01:44,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:44,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:44,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:45,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-17 03:01:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:45,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:45,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:45,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565613752] [2024-11-17 03:01:45,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565613752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:01:45,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018731618] [2024-11-17 03:01:45,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:45,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:01:45,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:01:45,451 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) [2024-11-17 03:01:45,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 03:01:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:45,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-17 03:01:45,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:01:45,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-17 03:01:45,776 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-17 03:01:45,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-17 03:01:45,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-17 03:01:45,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-17 03:01:45,803 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 13 treesize of output 9 [2024-11-17 03:01:45,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-17 03:01:45,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-17 03:01:45,939 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:01:45,939 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-17 03:01:45,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-17 03:01:46,040 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:01:46,040 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-17 03:01:46,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-17 03:01:46,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-17 03:01:46,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-17 03:01:46,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:46,074 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:01:46,118 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1275 (Array Int Int)) (v_ArrVal_1274 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1274) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 8) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1275) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_1274 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1274) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 4))))) is different from false [2024-11-17 03:01:46,124 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1275 (Array Int Int)) (v_ArrVal_1274 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1274) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_1275) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_1274 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1274) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 4)))))) is different from false [2024-11-17 03:01:46,161 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1280 (Array Int Int)) (v_ArrVal_1275 (Array Int Int)) (v_ArrVal_1274 (Array Int Int)) (v_ArrVal_1281 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1281))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1280) .cse0 v_ArrVal_1274) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_1275) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1280 (Array Int Int)) (v_ArrVal_1274 (Array Int Int)) (v_ArrVal_1281 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1280) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1281) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1274) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 4))))) is different from false [2024-11-17 03:01:46,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018731618] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:01:46,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 03:01:46,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 20 [2024-11-17 03:01:46,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382261329] [2024-11-17 03:01:46,163 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 03:01:46,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-17 03:01:46,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:46,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-17 03:01:46,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=437, Unknown=3, NotChecked=132, Total=650 [2024-11-17 03:01:46,164 INFO L87 Difference]: Start difference. First operand 5355 states and 7885 transitions. Second operand has 21 states, 18 states have (on average 8.944444444444445) internal successors, (161), 20 states have internal predecessors, (161), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:01:51,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:51,366 INFO L93 Difference]: Finished difference Result 5357 states and 7898 transitions. [2024-11-17 03:01:51,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-17 03:01:51,367 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 8.944444444444445) internal successors, (161), 20 states have internal predecessors, (161), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 101 [2024-11-17 03:01:51,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:51,373 INFO L225 Difference]: With dead ends: 5357 [2024-11-17 03:01:51,373 INFO L226 Difference]: Without dead ends: 5357 [2024-11-17 03:01:51,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=693, Unknown=3, NotChecked=168, Total=992 [2024-11-17 03:01:51,373 INFO L432 NwaCegarLoop]: 1828 mSDtfsCounter, 2711 mSDsluCounter, 15093 mSDsCounter, 0 mSdLazyCounter, 13766 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2729 SdHoareTripleChecker+Valid, 16921 SdHoareTripleChecker+Invalid, 13809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 13766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:51,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2729 Valid, 16921 Invalid, 13809 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [43 Valid, 13766 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-17 03:01:51,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5357 states. [2024-11-17 03:01:51,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5357 to 5339. [2024-11-17 03:01:51,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 4598 states have (on average 1.6981296215745976) internal successors, (7808), 5309 states have internal predecessors, (7808), 29 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (29), 26 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-17 03:01:51,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 7866 transitions. [2024-11-17 03:01:51,412 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 7866 transitions. Word has length 101 [2024-11-17 03:01:51,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:51,412 INFO L471 AbstractCegarLoop]: Abstraction has 5339 states and 7866 transitions. [2024-11-17 03:01:51,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 8.944444444444445) internal successors, (161), 20 states have internal predecessors, (161), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:01:51,412 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 7866 transitions. [2024-11-17 03:01:51,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-17 03:01:51,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:51,413 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:51,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-17 03:01:51,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:01:51,614 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr867REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:51,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:51,614 INFO L85 PathProgramCache]: Analyzing trace with hash -513914785, now seen corresponding path program 1 times [2024-11-17 03:01:51,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:51,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568263901] [2024-11-17 03:01:51,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:51,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:51,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-17 03:01:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:51,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:51,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:51,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568263901] [2024-11-17 03:01:51,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568263901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:51,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:51,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-17 03:01:51,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142030448] [2024-11-17 03:01:51,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:51,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 03:01:51,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:51,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 03:01:51,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-17 03:01:51,981 INFO L87 Difference]: Start difference. First operand 5339 states and 7866 transitions. Second operand has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 03:01:55,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:55,372 INFO L93 Difference]: Finished difference Result 5364 states and 7906 transitions. [2024-11-17 03:01:55,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-17 03:01:55,373 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 103 [2024-11-17 03:01:55,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:55,379 INFO L225 Difference]: With dead ends: 5364 [2024-11-17 03:01:55,379 INFO L226 Difference]: Without dead ends: 5364 [2024-11-17 03:01:55,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2024-11-17 03:01:55,379 INFO L432 NwaCegarLoop]: 1828 mSDtfsCounter, 2711 mSDsluCounter, 18011 mSDsCounter, 0 mSdLazyCounter, 10750 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2729 SdHoareTripleChecker+Valid, 19839 SdHoareTripleChecker+Invalid, 10772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 10750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:55,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2729 Valid, 19839 Invalid, 10772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 10750 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-17 03:01:55,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5364 states. [2024-11-17 03:01:55,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5364 to 5360. [2024-11-17 03:01:55,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 4618 states have (on average 1.6957557384148982) internal successors, (7831), 5328 states have internal predecessors, (7831), 29 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (31), 28 states have call predecessors, (31), 29 states have call successors, (31) [2024-11-17 03:01:55,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 7891 transitions. [2024-11-17 03:01:55,468 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 7891 transitions. Word has length 103 [2024-11-17 03:01:55,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:55,468 INFO L471 AbstractCegarLoop]: Abstraction has 5360 states and 7891 transitions. [2024-11-17 03:01:55,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 03:01:55,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 7891 transitions. [2024-11-17 03:01:55,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-17 03:01:55,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:55,474 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:55,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-17 03:01:55,475 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr868REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:55,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:55,480 INFO L85 PathProgramCache]: Analyzing trace with hash -513914784, now seen corresponding path program 1 times [2024-11-17 03:01:55,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:55,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245188522] [2024-11-17 03:01:55,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:55,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:56,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-17 03:01:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:56,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:01:56,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:56,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245188522] [2024-11-17 03:01:56,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245188522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:56,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:56,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-17 03:01:56,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447123161] [2024-11-17 03:01:56,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:56,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 03:01:56,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:56,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 03:01:56,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-17 03:01:56,075 INFO L87 Difference]: Start difference. First operand 5360 states and 7891 transitions. Second operand has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 03:01:59,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:59,573 INFO L93 Difference]: Finished difference Result 5363 states and 7904 transitions. [2024-11-17 03:01:59,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 03:01:59,574 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 103 [2024-11-17 03:01:59,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:59,579 INFO L225 Difference]: With dead ends: 5363 [2024-11-17 03:01:59,579 INFO L226 Difference]: Without dead ends: 5363 [2024-11-17 03:01:59,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-11-17 03:01:59,580 INFO L432 NwaCegarLoop]: 1829 mSDtfsCounter, 2744 mSDsluCounter, 10788 mSDsCounter, 0 mSdLazyCounter, 9673 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2762 SdHoareTripleChecker+Valid, 12617 SdHoareTripleChecker+Invalid, 9712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 9673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:59,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2762 Valid, 12617 Invalid, 9712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 9673 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-17 03:01:59,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5363 states. [2024-11-17 03:01:59,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5363 to 5360. [2024-11-17 03:01:59,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 4618 states have (on average 1.6953226504980512) internal successors, (7829), 5328 states have internal predecessors, (7829), 29 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (31), 28 states have call predecessors, (31), 29 states have call successors, (31) [2024-11-17 03:01:59,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 7889 transitions. [2024-11-17 03:01:59,621 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 7889 transitions. Word has length 103 [2024-11-17 03:01:59,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:59,621 INFO L471 AbstractCegarLoop]: Abstraction has 5360 states and 7889 transitions. [2024-11-17 03:01:59,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 03:01:59,621 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 7889 transitions. [2024-11-17 03:01:59,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-17 03:01:59,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:59,622 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:01:59,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-17 03:01:59,622 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr867REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:01:59,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:59,623 INFO L85 PathProgramCache]: Analyzing trace with hash -122424290, now seen corresponding path program 1 times [2024-11-17 03:01:59,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:59,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113848119] [2024-11-17 03:01:59,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:59,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:00,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-17 03:02:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:00,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:02:00,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:00,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113848119] [2024-11-17 03:02:00,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113848119] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:02:00,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644533767] [2024-11-17 03:02:00,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:00,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:02:00,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:02:00,045 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) [2024-11-17 03:02:00,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 03:02:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:00,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-17 03:02:00,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:02:00,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-17 03:02:00,345 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-17 03:02:00,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-17 03:02:00,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-17 03:02:00,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-17 03:02:00,516 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:02:00,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-17 03:02:00,580 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:02:00,580 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-17 03:02:00,626 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:02:00,626 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-17 03:02:00,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-17 03:02:00,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:02:00,660 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:02:00,669 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1593 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_1593) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-17 03:02:00,672 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1593 (Array Int Int))) (= (select |c_#valid| (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_1593) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) 1)) is different from false [2024-11-17 03:02:00,680 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1593 (Array Int Int)) (v_ArrVal_1592 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1592))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1593)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-17 03:02:00,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644533767] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:02:00,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 03:02:00,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10] total 23 [2024-11-17 03:02:00,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543743103] [2024-11-17 03:02:00,758 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 03:02:00,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-17 03:02:00,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:00,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-17 03:02:00,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=543, Unknown=21, NotChecked=150, Total=812 [2024-11-17 03:02:00,759 INFO L87 Difference]: Start difference. First operand 5360 states and 7889 transitions. Second operand has 24 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 23 states have internal predecessors, (167), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:02:04,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:04,689 INFO L93 Difference]: Finished difference Result 5362 states and 7902 transitions. [2024-11-17 03:02:04,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 03:02:04,689 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 23 states have internal predecessors, (167), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 104 [2024-11-17 03:02:04,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:04,694 INFO L225 Difference]: With dead ends: 5362 [2024-11-17 03:02:04,694 INFO L226 Difference]: Without dead ends: 5362 [2024-11-17 03:02:04,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=735, Unknown=21, NotChecked=174, Total=1056 [2024-11-17 03:02:04,694 INFO L432 NwaCegarLoop]: 1821 mSDtfsCounter, 2683 mSDsluCounter, 19774 mSDsCounter, 0 mSdLazyCounter, 11820 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2701 SdHoareTripleChecker+Valid, 21595 SdHoareTripleChecker+Invalid, 11846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 11820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:04,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2701 Valid, 21595 Invalid, 11846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 11820 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-17 03:02:04,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5362 states. [2024-11-17 03:02:04,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5362 to 5359. [2024-11-17 03:02:04,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5359 states, 4618 states have (on average 1.694889562581204) internal successors, (7827), 5327 states have internal predecessors, (7827), 29 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (31), 28 states have call predecessors, (31), 29 states have call successors, (31) [2024-11-17 03:02:04,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5359 states to 5359 states and 7887 transitions. [2024-11-17 03:02:04,728 INFO L78 Accepts]: Start accepts. Automaton has 5359 states and 7887 transitions. Word has length 104 [2024-11-17 03:02:04,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:04,729 INFO L471 AbstractCegarLoop]: Abstraction has 5359 states and 7887 transitions. [2024-11-17 03:02:04,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 23 states have internal predecessors, (167), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:02:04,729 INFO L276 IsEmpty]: Start isEmpty. Operand 5359 states and 7887 transitions. [2024-11-17 03:02:04,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-17 03:02:04,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:04,730 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:02:04,743 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-17 03:02:04,930 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,SelfDestructingSolverStorable26 [2024-11-17 03:02:04,930 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr868REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-17 03:02:04,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:04,931 INFO L85 PathProgramCache]: Analyzing trace with hash -122424289, now seen corresponding path program 1 times [2024-11-17 03:02:04,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:04,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455402582] [2024-11-17 03:02:04,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:04,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:05,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-17 03:02:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:05,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:02:05,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:05,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455402582] [2024-11-17 03:02:05,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455402582] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:02:05,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330038793] [2024-11-17 03:02:05,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:05,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:02:05,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:02:05,542 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) [2024-11-17 03:02:05,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 03:02:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:05,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-17 03:02:05,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:02:05,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-17 03:02:05,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 1 [2024-11-17 03:02:05,861 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-17 03:02:05,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-17 03:02:05,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-17 03:02:05,891 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 19 treesize of output 1 [2024-11-17 03:02:05,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-17 03:02:05,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-17 03:02:06,006 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:02:06,007 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-17 03:02:06,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-17 03:02:06,064 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:02:06,064 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-17 03:02:06,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-17 03:02:06,110 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:02:06,110 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-17 03:02:06,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 22 [2024-11-17 03:02:06,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-17 03:02:06,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2024-11-17 03:02:06,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:02:06,173 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:02:06,491 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1765 (Array Int Int)) (v_ArrVal_1774 (Array Int Int)) (v_ArrVal_1773 (Array Int Int))) (let ((.cse1 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1773))) (let ((.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse0 (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1774) .cse2 v_ArrVal_1765))) (or (forall ((v_ArrVal_1768 (Array Int Int)) (v_ArrVal_1766 (Array Int Int))) (<= 0 (+ 8 (select (select (store .cse0 (select (select (store .cse1 .cse2 v_ArrVal_1766) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_1768) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))) (< (+ (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 4) 0)))))) (forall ((v_ArrVal_1765 (Array Int Int)) (v_ArrVal_1774 (Array Int Int)) (v_ArrVal_1773 (Array Int Int))) (let ((.cse7 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1773))) (let ((.cse8 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1774) .cse8 v_ArrVal_1765))) (or (< (+ (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 4) 0) (forall ((v_ArrVal_1768 (Array Int Int)) (v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1766 (Array Int Int))) (let ((.cse6 (store .cse7 .cse8 v_ArrVal_1766))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (<= (+ 12 (select (select (store .cse4 .cse5 v_ArrVal_1768) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_1767) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))))))))))))) is different from false [2024-11-17 03:02:06,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330038793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:02:06,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 03:02:06,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 23 [2024-11-17 03:02:06,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450137054] [2024-11-17 03:02:06,493 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 03:02:06,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-17 03:02:06,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:06,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-17 03:02:06,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=742, Unknown=18, NotChecked=56, Total=930 [2024-11-17 03:02:06,494 INFO L87 Difference]: Start difference. First operand 5359 states and 7887 transitions. Second operand has 24 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 23 states have internal predecessors, (167), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)