./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 14:42:23,978 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 14:42:24,039 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-11 14:42:24,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 14:42:24,045 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 14:42:24,073 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 14:42:24,075 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 14:42:24,076 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 14:42:24,076 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 14:42:24,076 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 14:42:24,077 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 14:42:24,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 14:42:24,078 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 14:42:24,079 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 14:42:24,080 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 14:42:24,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 14:42:24,080 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 14:42:24,080 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 14:42:24,081 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 14:42:24,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 14:42:24,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 14:42:24,082 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 14:42:24,082 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 14:42:24,086 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 14:42:24,086 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 14:42:24,086 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 14:42:24,086 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 14:42:24,086 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 14:42:24,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 14:42:24,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:42:24,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 14:42:24,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 14:42:24,087 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 14:42:24,087 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 14:42:24,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 14:42:24,088 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 14:42:24,088 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 14:42:24,088 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 14:42:24,088 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 14:42:24,089 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2024-10-11 14:42:24,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 14:42:24,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 14:42:24,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 14:42:24,339 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 14:42:24,339 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 14:42:24,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2024-10-11 14:42:25,586 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 14:42:25,901 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 14:42:25,902 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2024-10-11 14:42:25,933 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e8283d9a2/63fdab550f2a46438e924fd42033bccf/FLAG70369c20b [2024-10-11 14:42:26,152 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e8283d9a2/63fdab550f2a46438e924fd42033bccf [2024-10-11 14:42:26,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 14:42:26,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 14:42:26,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 14:42:26,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 14:42:26,163 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 14:42:26,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:42:26" (1/1) ... [2024-10-11 14:42:26,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a9cf1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:42:26, skipping insertion in model container [2024-10-11 14:42:26,165 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:42:26" (1/1) ... [2024-10-11 14:42:26,284 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 14:42:26,490 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2024-10-11 14:42:26,497 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2024-10-11 14:42:27,004 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,005 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,006 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,006 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,008 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,015 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,016 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,017 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,017 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,018 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,019 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,019 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,020 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,342 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,346 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,349 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,356 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:42:27,440 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 14:42:27,450 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2024-10-11 14:42:27,451 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2024-10-11 14:42:27,482 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,483 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,483 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,483 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,484 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,487 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,488 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,488 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,489 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,489 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,490 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,490 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,490 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,532 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,532 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,533 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,536 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:42:27,546 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2024-10-11 14:42:27,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:42:27,748 INFO L204 MainTranslator]: Completed translation [2024-10-11 14:42:27,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:42:27 WrapperNode [2024-10-11 14:42:27,749 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 14:42:27,750 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 14:42:27,750 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 14:42:27,750 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 14:42:27,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:42:27" (1/1) ... [2024-10-11 14:42:27,845 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:42:27" (1/1) ... [2024-10-11 14:42:27,898 INFO L138 Inliner]: procedures = 680, calls = 1671, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 652 [2024-10-11 14:42:27,902 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 14:42:27,903 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 14:42:27,903 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 14:42:27,903 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 14:42:27,917 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:42:27" (1/1) ... [2024-10-11 14:42:27,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:42:27" (1/1) ... [2024-10-11 14:42:27,928 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:42:27" (1/1) ... [2024-10-11 14:42:27,990 INFO L175 MemorySlicer]: Split 300 memory accesses to 7 slices as follows [6, 2, 236, 3, 39, 5, 9]. 79 percent of accesses are in the largest equivalence class. The 256 initializations are split as follows [5, 2, 236, 1, 5, 2, 5]. The 6 writes are split as follows [1, 0, 0, 1, 3, 1, 0]. [2024-10-11 14:42:27,994 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:42:27" (1/1) ... [2024-10-11 14:42:27,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:42:27" (1/1) ... [2024-10-11 14:42:28,018 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:42:27" (1/1) ... [2024-10-11 14:42:28,025 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:42:27" (1/1) ... [2024-10-11 14:42:28,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:42:27" (1/1) ... [2024-10-11 14:42:28,039 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:42:27" (1/1) ... [2024-10-11 14:42:28,054 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 14:42:28,054 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 14:42:28,054 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 14:42:28,055 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 14:42:28,055 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:42:27" (1/1) ... [2024-10-11 14:42:28,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:42:28,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:42:28,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 14:42:28,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 14:42:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 14:42:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-10-11 14:42:28,130 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-10-11 14:42:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-10-11 14:42:28,130 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-10-11 14:42:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-11 14:42:28,130 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-11 14:42:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 14:42:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 14:42:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 14:42:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 14:42:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-11 14:42:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-11 14:42:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-11 14:42:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-11 14:42:28,131 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-11 14:42:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 14:42:28,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 14:42:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 14:42:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 14:42:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 14:42:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 14:42:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 14:42:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-11 14:42:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-11 14:42:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-11 14:42:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-11 14:42:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-10-11 14:42:28,132 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-10-11 14:42:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 14:42:28,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 14:42:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-11 14:42:28,132 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-11 14:42:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-10-11 14:42:28,132 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-10-11 14:42:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-10-11 14:42:28,132 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-10-11 14:42:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 14:42:28,132 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 14:42:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-10-11 14:42:28,133 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-10-11 14:42:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 14:42:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 14:42:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 14:42:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-11 14:42:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-11 14:42:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-11 14:42:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-11 14:42:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-11 14:42:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-11 14:42:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-11 14:42:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-11 14:42:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-11 14:42:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-11 14:42:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-11 14:42:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-11 14:42:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-10-11 14:42:28,134 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-10-11 14:42:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-10-11 14:42:28,134 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-10-11 14:42:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-10-11 14:42:28,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-10-11 14:42:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 14:42:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 14:42:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 14:42:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 14:42:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-11 14:42:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-11 14:42:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-11 14:42:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-10-11 14:42:28,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-10-11 14:42:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 14:42:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 14:42:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 14:42:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 14:42:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 14:42:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-11 14:42:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-11 14:42:28,330 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 14:42:28,332 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 14:42:28,847 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-10-11 14:42:28,847 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 14:42:28,921 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 14:42:28,922 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 14:42:28,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:42:28 BoogieIcfgContainer [2024-10-11 14:42:28,923 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 14:42:28,924 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 14:42:28,924 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 14:42:28,927 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 14:42:28,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:42:26" (1/3) ... [2024-10-11 14:42:28,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f39901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:42:28, skipping insertion in model container [2024-10-11 14:42:28,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:42:27" (2/3) ... [2024-10-11 14:42:28,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f39901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:42:28, skipping insertion in model container [2024-10-11 14:42:28,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:42:28" (3/3) ... [2024-10-11 14:42:28,929 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2024-10-11 14:42:28,942 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 14:42:28,942 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 14:42:29,001 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:42:29,009 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=LoopHeads, 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;@2fd6cd4c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:42:29,010 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 14:42:29,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 84 states have (on average 1.2023809523809523) internal successors, (101), 85 states have internal predecessors, (101), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-11 14:42:29,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 14:42:29,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:42:29,025 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:42:29,025 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:42:29,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:42:29,030 INFO L85 PathProgramCache]: Analyzing trace with hash 763409143, now seen corresponding path program 1 times [2024-10-11 14:42:29,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:42:29,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569897525] [2024-10-11 14:42:29,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:42:29,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:42:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:29,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:42:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:29,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 14:42:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:29,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 14:42:29,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:29,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:42:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:29,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:42:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:29,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 14:42:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:29,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 14:42:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:29,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 14:42:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:29,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 14:42:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:29,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 14:42:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:29,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 14:42:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:29,652 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-10-11 14:42:29,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:42:29,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569897525] [2024-10-11 14:42:29,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569897525] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:42:29,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:42:29,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 14:42:29,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263926221] [2024-10-11 14:42:29,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:42:29,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:42:29,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:42:29,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:42:29,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 14:42:29,685 INFO L87 Difference]: Start difference. First operand has 162 states, 84 states have (on average 1.2023809523809523) internal successors, (101), 85 states have internal predecessors, (101), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-11 14:42:30,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:42:30,652 INFO L93 Difference]: Finished difference Result 350 states and 555 transitions. [2024-10-11 14:42:30,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 14:42:30,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 66 [2024-10-11 14:42:30,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:42:30,665 INFO L225 Difference]: With dead ends: 350 [2024-10-11 14:42:30,665 INFO L226 Difference]: Without dead ends: 191 [2024-10-11 14:42:30,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:42:30,677 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 90 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 14:42:30,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 205 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 14:42:30,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-10-11 14:42:30,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 160. [2024-10-11 14:42:30,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 83 states have (on average 1.1686746987951808) internal successors, (97), 84 states have internal predecessors, (97), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-11 14:42:30,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 218 transitions. [2024-10-11 14:42:30,743 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 218 transitions. Word has length 66 [2024-10-11 14:42:30,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:42:30,743 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 218 transitions. [2024-10-11 14:42:30,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-11 14:42:30,744 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 218 transitions. [2024-10-11 14:42:30,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 14:42:30,747 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:42:30,747 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:42:30,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 14:42:30,748 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:42:30,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:42:30,748 INFO L85 PathProgramCache]: Analyzing trace with hash -309053259, now seen corresponding path program 1 times [2024-10-11 14:42:30,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:42:30,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059570799] [2024-10-11 14:42:30,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:42:30,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:42:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:31,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:42:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:31,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 14:42:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:31,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 14:42:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:31,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:42:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:31,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:42:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:31,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 14:42:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:31,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 14:42:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:31,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 14:42:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:31,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 14:42:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:31,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 14:42:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:31,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 14:42:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:31,262 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-11 14:42:31,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:42:31,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059570799] [2024-10-11 14:42:31,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059570799] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:42:31,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633991088] [2024-10-11 14:42:31,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:42:31,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:42:31,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:42:31,265 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:42:31,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 14:42:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:31,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 1971 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 14:42:31,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:42:31,633 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-11 14:42:31,633 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:42:31,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633991088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:42:31,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:42:31,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-10-11 14:42:31,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767714782] [2024-10-11 14:42:31,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:42:31,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:42:31,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:42:31,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:42:31,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-11 14:42:31,636 INFO L87 Difference]: Start difference. First operand 160 states and 218 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-11 14:42:31,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:42:31,895 INFO L93 Difference]: Finished difference Result 290 states and 407 transitions. [2024-10-11 14:42:31,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 14:42:31,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 66 [2024-10-11 14:42:31,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:42:31,897 INFO L225 Difference]: With dead ends: 290 [2024-10-11 14:42:31,897 INFO L226 Difference]: Without dead ends: 162 [2024-10-11 14:42:31,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-11 14:42:31,899 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 37 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 14:42:31,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 657 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 14:42:31,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-10-11 14:42:31,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-10-11 14:42:31,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 84 states have (on average 1.1666666666666667) internal successors, (98), 86 states have internal predecessors, (98), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2024-10-11 14:42:31,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 227 transitions. [2024-10-11 14:42:31,915 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 227 transitions. Word has length 66 [2024-10-11 14:42:31,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:42:31,916 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 227 transitions. [2024-10-11 14:42:31,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-11 14:42:31,916 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 227 transitions. [2024-10-11 14:42:31,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-11 14:42:31,918 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:42:31,918 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:42:31,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 14:42:32,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:42:32,123 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:42:32,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:42:32,124 INFO L85 PathProgramCache]: Analyzing trace with hash -444922421, now seen corresponding path program 1 times [2024-10-11 14:42:32,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:42:32,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156269376] [2024-10-11 14:42:32,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:42:32,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:42:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:32,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:42:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:32,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 14:42:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:32,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 14:42:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:32,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:42:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:32,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:42:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:32,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 14:42:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:32,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:42:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:32,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:42:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:32,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 14:42:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:32,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 14:42:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:32,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 14:42:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:32,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 14:42:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:32,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 14:42:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:32,541 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-11 14:42:32,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:42:32,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156269376] [2024-10-11 14:42:32,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156269376] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:42:32,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805969808] [2024-10-11 14:42:32,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:42:32,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:42:32,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:42:32,543 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:42:32,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 14:42:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:32,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 2106 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 14:42:32,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:42:32,920 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 14:42:32,921 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:42:32,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805969808] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:42:32,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:42:32,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-10-11 14:42:32,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140652693] [2024-10-11 14:42:32,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:42:32,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 14:42:32,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:42:32,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 14:42:32,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-10-11 14:42:32,923 INFO L87 Difference]: Start difference. First operand 162 states and 227 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-11 14:42:33,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:42:33,292 INFO L93 Difference]: Finished difference Result 300 states and 429 transitions. [2024-10-11 14:42:33,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 14:42:33,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 79 [2024-10-11 14:42:33,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:42:33,295 INFO L225 Difference]: With dead ends: 300 [2024-10-11 14:42:33,296 INFO L226 Difference]: Without dead ends: 173 [2024-10-11 14:42:33,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-10-11 14:42:33,297 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 45 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 14:42:33,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 1004 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 14:42:33,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-10-11 14:42:33,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-10-11 14:42:33,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 89 states have (on average 1.1685393258426966) internal successors, (104), 91 states have internal predecessors, (104), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2024-10-11 14:42:33,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 243 transitions. [2024-10-11 14:42:33,315 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 243 transitions. Word has length 79 [2024-10-11 14:42:33,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:42:33,316 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 243 transitions. [2024-10-11 14:42:33,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-11 14:42:33,316 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 243 transitions. [2024-10-11 14:42:33,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-11 14:42:33,317 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:42:33,317 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:42:33,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 14:42:33,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:42:33,518 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:42:33,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:42:33,519 INFO L85 PathProgramCache]: Analyzing trace with hash -66068739, now seen corresponding path program 1 times [2024-10-11 14:42:33,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:42:33,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556850237] [2024-10-11 14:42:33,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:42:33,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:42:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 14:42:34,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [869903790] [2024-10-11 14:42:34,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:42:34,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:42:34,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:42:34,010 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:42:34,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 14:42:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:42:38,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 2376 conjuncts, 188 conjuncts are in the unsatisfiable core [2024-10-11 14:42:38,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:42:38,586 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 19 treesize of output 15 [2024-10-11 14:42:38,599 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 17 treesize of output 13 [2024-10-11 14:42:39,673 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 [2024-10-11 14:42:39,833 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 67 treesize of output 55 [2024-10-11 14:42:42,727 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 [2024-10-11 14:42:43,140 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 67 treesize of output 55 [2024-10-11 14:42:51,948 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 65 proven. 18 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 14:42:51,949 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:43:05,404 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 54 treesize of output 50 [2024-10-11 14:43:05,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:43:05,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556850237] [2024-10-11 14:43:05,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 14:43:05,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869903790] [2024-10-11 14:43:05,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869903790] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:43:05,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:43:05,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2024-10-11 14:43:05,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25351172] [2024-10-11 14:43:05,812 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 14:43:05,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-10-11 14:43:05,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:43:05,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-10-11 14:43:05,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=2537, Unknown=0, NotChecked=0, Total=2756 [2024-10-11 14:43:05,819 INFO L87 Difference]: Start difference. First operand 173 states and 243 transitions. Second operand has 41 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 33 states have internal predecessors, (63), 14 states have call successors, (19), 6 states have call predecessors, (19), 10 states have return successors, (17), 13 states have call predecessors, (17), 12 states have call successors, (17) [2024-10-11 14:43:20,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-10-11 14:43:30,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-10-11 14:43:38,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-10-11 14:43:40,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-10-11 14:43:48,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:43:48,622 INFO L93 Difference]: Finished difference Result 547 states and 838 transitions. [2024-10-11 14:43:48,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-10-11 14:43:48,624 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 33 states have internal predecessors, (63), 14 states have call successors, (19), 6 states have call predecessors, (19), 10 states have return successors, (17), 13 states have call predecessors, (17), 12 states have call successors, (17) Word has length 105 [2024-10-11 14:43:48,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:43:48,632 INFO L225 Difference]: With dead ends: 547 [2024-10-11 14:43:48,634 INFO L226 Difference]: Without dead ends: 545 [2024-10-11 14:43:48,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 68 SyntacticMatches, 3 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2126 ImplicationChecksByTransitivity, 27.1s TimeCoverageRelationStatistics Valid=562, Invalid=7094, Unknown=0, NotChecked=0, Total=7656 [2024-10-11 14:43:48,638 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 540 mSDsluCounter, 2653 mSDsCounter, 0 mSdLazyCounter, 4213 mSolverCounterSat, 412 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 4626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 4213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.2s IncrementalHoareTripleChecker+Time [2024-10-11 14:43:48,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 2834 Invalid, 4626 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [412 Valid, 4213 Invalid, 1 Unknown, 0 Unchecked, 31.2s Time] [2024-10-11 14:43:48,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-10-11 14:43:48,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 511. [2024-10-11 14:43:48,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 273 states have (on average 1.1794871794871795) internal successors, (322), 281 states have internal predecessors, (322), 186 states have call successors, (186), 41 states have call predecessors, (186), 51 states have return successors, (258), 188 states have call predecessors, (258), 182 states have call successors, (258) [2024-10-11 14:43:48,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 766 transitions. [2024-10-11 14:43:48,745 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 766 transitions. Word has length 105 [2024-10-11 14:43:48,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:43:48,746 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 766 transitions. [2024-10-11 14:43:48,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 33 states have internal predecessors, (63), 14 states have call successors, (19), 6 states have call predecessors, (19), 10 states have return successors, (17), 13 states have call predecessors, (17), 12 states have call successors, (17) [2024-10-11 14:43:48,747 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 766 transitions. [2024-10-11 14:43:48,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-11 14:43:48,753 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:43:48,753 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:43:48,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 14:43:48,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:43:48,954 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:43:48,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:43:48,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1282222465, now seen corresponding path program 1 times [2024-10-11 14:43:48,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:43:48,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572999548] [2024-10-11 14:43:48,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:43:48,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:43:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:43:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 14:43:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 14:43:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:43:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:43:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 14:43:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:43:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:43:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 14:43:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 14:43:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 14:43:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:43:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:43:49,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-11 14:43:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 14:43:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:43:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:43:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,456 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-10-11 14:43:49,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:43:49,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572999548] [2024-10-11 14:43:49,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572999548] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:43:49,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505459290] [2024-10-11 14:43:49,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:43:49,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:43:49,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:43:49,458 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:43:49,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 14:43:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:49,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 2371 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 14:43:49,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:43:49,854 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-11 14:43:49,854 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:43:49,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505459290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:43:49,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:43:49,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2024-10-11 14:43:49,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691159322] [2024-10-11 14:43:49,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:43:49,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:43:49,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:43:49,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:43:49,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 14:43:49,856 INFO L87 Difference]: Start difference. First operand 511 states and 766 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-11 14:43:50,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:43:50,088 INFO L93 Difference]: Finished difference Result 987 states and 1552 transitions. [2024-10-11 14:43:50,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:43:50,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 105 [2024-10-11 14:43:50,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:43:50,095 INFO L225 Difference]: With dead ends: 987 [2024-10-11 14:43:50,095 INFO L226 Difference]: Without dead ends: 515 [2024-10-11 14:43:50,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 14:43:50,099 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 0 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 14:43:50,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 602 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 14:43:50,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-10-11 14:43:50,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 513. [2024-10-11 14:43:50,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 275 states have (on average 1.170909090909091) internal successors, (322), 283 states have internal predecessors, (322), 186 states have call successors, (186), 41 states have call predecessors, (186), 51 states have return successors, (258), 188 states have call predecessors, (258), 182 states have call successors, (258) [2024-10-11 14:43:50,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 766 transitions. [2024-10-11 14:43:50,163 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 766 transitions. Word has length 105 [2024-10-11 14:43:50,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:43:50,165 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 766 transitions. [2024-10-11 14:43:50,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-11 14:43:50,165 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 766 transitions. [2024-10-11 14:43:50,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-11 14:43:50,168 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:43:50,168 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:43:50,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 14:43:50,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:43:50,369 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:43:50,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:43:50,369 INFO L85 PathProgramCache]: Analyzing trace with hash 312616997, now seen corresponding path program 1 times [2024-10-11 14:43:50,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:43:50,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831791622] [2024-10-11 14:43:50,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:43:50,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:43:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:43:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 14:43:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 14:43:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:43:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:43:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 14:43:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:43:51,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:43:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 14:43:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:43:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 14:43:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:43:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:43:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 14:43:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 14:43:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:43:51,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:43:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,423 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-10-11 14:43:51,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:43:51,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831791622] [2024-10-11 14:43:51,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831791622] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:43:51,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956906625] [2024-10-11 14:43:51,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:43:51,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:43:51,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:43:51,426 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:43:51,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 14:43:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:51,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 2376 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 14:43:51,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:43:51,931 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-11 14:43:51,931 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:43:51,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956906625] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:43:51,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:43:51,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2024-10-11 14:43:51,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783642797] [2024-10-11 14:43:51,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:43:51,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:43:51,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:43:51,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:43:51,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-11 14:43:51,933 INFO L87 Difference]: Start difference. First operand 513 states and 766 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-11 14:43:52,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:43:52,600 INFO L93 Difference]: Finished difference Result 993 states and 1542 transitions. [2024-10-11 14:43:52,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 14:43:52,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 107 [2024-10-11 14:43:52,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:43:52,605 INFO L225 Difference]: With dead ends: 993 [2024-10-11 14:43:52,606 INFO L226 Difference]: Without dead ends: 519 [2024-10-11 14:43:52,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-10-11 14:43:52,609 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 4 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 14:43:52,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 743 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 14:43:52,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-10-11 14:43:52,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 515. [2024-10-11 14:43:52,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 277 states have (on average 1.1660649819494584) internal successors, (323), 285 states have internal predecessors, (323), 186 states have call successors, (186), 41 states have call predecessors, (186), 51 states have return successors, (258), 188 states have call predecessors, (258), 182 states have call successors, (258) [2024-10-11 14:43:52,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 767 transitions. [2024-10-11 14:43:52,669 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 767 transitions. Word has length 107 [2024-10-11 14:43:52,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:43:52,670 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 767 transitions. [2024-10-11 14:43:52,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-11 14:43:52,670 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 767 transitions. [2024-10-11 14:43:52,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-11 14:43:52,671 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:43:52,671 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:43:52,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 14:43:52,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:43:52,873 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:43:52,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:43:52,873 INFO L85 PathProgramCache]: Analyzing trace with hash -419350429, now seen corresponding path program 1 times [2024-10-11 14:43:52,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:43:52,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497673692] [2024-10-11 14:43:52,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:43:52,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:43:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:55,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:43:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:55,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 14:43:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:55,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 14:43:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:55,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:43:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:55,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:43:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:55,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 14:43:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:55,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:43:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:55,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:43:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:55,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 14:43:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:56,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:43:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:56,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 14:43:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:56,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:43:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:56,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:43:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:56,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 14:43:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:56,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 14:43:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:56,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:43:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:56,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:43:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:56,548 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 6 proven. 29 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-10-11 14:43:56,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:43:56,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497673692] [2024-10-11 14:43:56,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497673692] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:43:56,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575017668] [2024-10-11 14:43:56,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:43:56,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:43:56,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:43:56,550 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:43:56,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 14:43:57,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:43:57,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 2381 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-11 14:43:57,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:43:57,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15