./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_byte_buf_append_with_lookup_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f32a256e85dfae47c8548ef83bd17812a642f36aa6564d2121f4ad41349db94a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 12:45:50,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 12:45:50,659 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 12:45:50,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 12:45:50,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 12:45:50,687 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 12:45:50,688 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 12:45:50,688 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 12:45:50,689 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 12:45:50,690 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 12:45:50,690 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 12:45:50,690 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 12:45:50,691 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 12:45:50,692 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 12:45:50,692 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 12:45:50,693 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 12:45:50,693 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 12:45:50,693 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 12:45:50,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 12:45:50,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 12:45:50,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 12:45:50,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 12:45:50,696 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 12:45:50,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 12:45:50,697 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 12:45:50,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 12:45:50,697 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 12:45:50,697 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 12:45:50,697 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 12:45:50,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:45:50,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 12:45:50,698 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 12:45:50,698 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 12:45:50,698 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 12:45:50,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 12:45:50,698 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 12:45:50,698 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 12:45:50,698 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 12:45:50,699 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 12:45:50,699 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f32a256e85dfae47c8548ef83bd17812a642f36aa6564d2121f4ad41349db94a [2024-10-24 12:45:50,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 12:45:50,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 12:45:50,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 12:45:50,932 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 12:45:50,932 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 12:45:50,933 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2024-10-24 12:45:52,149 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 12:45:52,532 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 12:45:52,533 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2024-10-24 12:45:52,572 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df1f6acb4/d735cefdeec44e309345d34d0d8c659f/FLAGe2d37fa3e [2024-10-24 12:45:52,737 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df1f6acb4/d735cefdeec44e309345d34d0d8c659f [2024-10-24 12:45:52,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 12:45:52,740 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 12:45:52,741 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 12:45:52,741 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 12:45:52,746 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 12:45:52,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:45:52" (1/1) ... [2024-10-24 12:45:52,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@176d47db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:45:52, skipping insertion in model container [2024-10-24 12:45:52,749 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:45:52" (1/1) ... [2024-10-24 12:45:52,820 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 12:45:53,076 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_byte_buf_append_with_lookup_harness.i[4505,4518] [2024-10-24 12:45:53,083 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_byte_buf_append_with_lookup_harness.i[4565,4578] [2024-10-24 12:45:53,686 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:53,687 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:53,689 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:53,690 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:53,691 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:53,704 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:53,704 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:53,705 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:53,706 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:54,063 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:54,065 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:54,129 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:54,130 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:54,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:45:54,225 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 12:45:54,241 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_byte_buf_append_with_lookup_harness.i[4505,4518] [2024-10-24 12:45:54,241 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_byte_buf_append_with_lookup_harness.i[4565,4578] [2024-10-24 12:45:54,276 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:54,277 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:54,278 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:54,278 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:54,279 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:54,287 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:54,287 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:54,289 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:54,289 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:54,357 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:54,358 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:54,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8297] [2024-10-24 12:45:54,458 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:54,459 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:45:54,493 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8783-8794] [2024-10-24 12:45:54,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:45:54,712 INFO L204 MainTranslator]: Completed translation [2024-10-24 12:45:54,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:45:54 WrapperNode [2024-10-24 12:45:54,713 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 12:45:54,714 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 12:45:54,715 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 12:45:54,715 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 12:45:54,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:45:54" (1/1) ... [2024-10-24 12:45:54,803 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:45:54" (1/1) ... [2024-10-24 12:45:54,883 INFO L138 Inliner]: procedures = 680, calls = 2634, calls flagged for inlining = 63, calls inlined = 10, statements flattened = 969 [2024-10-24 12:45:54,884 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 12:45:54,884 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 12:45:54,884 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 12:45:54,884 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 12:45:54,894 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:45:54" (1/1) ... [2024-10-24 12:45:54,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:45:54" (1/1) ... [2024-10-24 12:45:54,905 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:45:54" (1/1) ... [2024-10-24 12:45:54,978 INFO L175 MemorySlicer]: Split 569 memory accesses to 9 slices as follows [256, 2, 236, 4, 32, 1, 9, 9, 20]. 45 percent of accesses are in the largest equivalence class. The 511 initializations are split as follows [256, 2, 236, 2, 4, 0, 5, 4, 2]. The 5 writes are split as follows [0, 0, 0, 0, 3, 0, 1, 0, 1]. [2024-10-24 12:45:54,979 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:45:54" (1/1) ... [2024-10-24 12:45:54,979 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:45:54" (1/1) ... [2024-10-24 12:45:55,013 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:45:54" (1/1) ... [2024-10-24 12:45:55,017 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:45:54" (1/1) ... [2024-10-24 12:45:55,023 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:45:54" (1/1) ... [2024-10-24 12:45:55,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:45:54" (1/1) ... [2024-10-24 12:45:55,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 12:45:55,036 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 12:45:55,036 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 12:45:55,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 12:45:55,037 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:45:54" (1/1) ... [2024-10-24 12:45:55,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:45:55,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:45:55,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 12:45:55,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 12:45:55,112 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-10-24 12:45:55,112 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-10-24 12:45:55,112 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-10-24 12:45:55,113 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-10-24 12:45:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 12:45:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-24 12:45:55,113 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-24 12:45:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 12:45:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 12:45:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 12:45:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 12:45:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 12:45:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-24 12:45:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-24 12:45:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-24 12:45:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-24 12:45:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-24 12:45:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-24 12:45:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 12:45:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 12:45:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 12:45:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 12:45:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 12:45:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 12:45:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 12:45:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-24 12:45:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-24 12:45:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-24 12:45:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-24 12:45:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-24 12:45:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-10-24 12:45:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 12:45:55,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 12:45:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-24 12:45:55,116 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-24 12:45:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 12:45:55,116 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 12:45:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 12:45:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-10-24 12:45:55,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-10-24 12:45:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 12:45:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 12:45:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 12:45:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-24 12:45:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-24 12:45:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-24 12:45:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-24 12:45:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-24 12:45:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-10-24 12:45:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-24 12:45:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-24 12:45:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-24 12:45:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-24 12:45:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-24 12:45:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-24 12:45:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-24 12:45:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-10-24 12:45:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-10-24 12:45:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-10-24 12:45:55,119 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-10-24 12:45:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-10-24 12:45:55,119 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-10-24 12:45:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2024-10-24 12:45:55,120 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2024-10-24 12:45:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-10-24 12:45:55,120 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-10-24 12:45:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 12:45:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 12:45:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 12:45:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 12:45:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 12:45:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-24 12:45:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-24 12:45:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-24 12:45:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-24 12:45:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 12:45:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 12:45:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 12:45:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 12:45:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 12:45:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-24 12:45:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-24 12:45:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-24 12:45:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-24 12:45:55,359 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 12:45:55,361 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 12:45:56,070 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-10-24 12:45:56,071 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 12:45:56,175 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 12:45:56,175 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 12:45:56,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:45:56 BoogieIcfgContainer [2024-10-24 12:45:56,175 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 12:45:56,176 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 12:45:56,176 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 12:45:56,180 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 12:45:56,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:45:52" (1/3) ... [2024-10-24 12:45:56,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce36bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:45:56, skipping insertion in model container [2024-10-24 12:45:56,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:45:54" (2/3) ... [2024-10-24 12:45:56,182 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce36bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:45:56, skipping insertion in model container [2024-10-24 12:45:56,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:45:56" (3/3) ... [2024-10-24 12:45:56,183 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_with_lookup_harness.i [2024-10-24 12:45:56,197 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 12:45:56,197 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 12:45:56,255 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 12:45:56,261 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;@3df2a908, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 12:45:56,262 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 12:45:56,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 87 states have (on average 1.2758620689655173) internal successors, (111), 88 states have internal predecessors, (111), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-24 12:45:56,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-24 12:45:56,277 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:45:56,277 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:45:56,278 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:45:56,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:45:56,284 INFO L85 PathProgramCache]: Analyzing trace with hash 90942132, now seen corresponding path program 1 times [2024-10-24 12:45:56,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:45:56,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340347122] [2024-10-24 12:45:56,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:45:56,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:45:56,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:56,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:45:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:56,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 12:45:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:56,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 12:45:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:56,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:45:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:56,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:45:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:56,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 12:45:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:56,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:45:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:56,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:45:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:56,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:45:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:56,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 12:45:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:56,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 12:45:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:56,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 12:45:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:56,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:45:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:56,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 12:45:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:56,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 12:45:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:56,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 12:45:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:56,926 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-10-24 12:45:56,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:45:56,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340347122] [2024-10-24 12:45:56,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340347122] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:45:56,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:45:56,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 12:45:56,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477564170] [2024-10-24 12:45:56,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:45:56,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 12:45:56,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:45:56,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 12:45:56,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 12:45:56,956 INFO L87 Difference]: Start difference. First operand has 145 states, 87 states have (on average 1.2758620689655173) internal successors, (111), 88 states have internal predecessors, (111), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 12:45:57,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:45:57,336 INFO L93 Difference]: Finished difference Result 288 states and 421 transitions. [2024-10-24 12:45:57,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 12:45:57,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 93 [2024-10-24 12:45:57,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:45:57,349 INFO L225 Difference]: With dead ends: 288 [2024-10-24 12:45:57,350 INFO L226 Difference]: Without dead ends: 143 [2024-10-24 12:45:57,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 12:45:57,358 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 70 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:45:57,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 151 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 12:45:57,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-10-24 12:45:57,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-10-24 12:45:57,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 86 states have (on average 1.244186046511628) internal successors, (107), 87 states have internal predecessors, (107), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-10-24 12:45:57,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 194 transitions. [2024-10-24 12:45:57,413 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 194 transitions. Word has length 93 [2024-10-24 12:45:57,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:45:57,413 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 194 transitions. [2024-10-24 12:45:57,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 12:45:57,413 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 194 transitions. [2024-10-24 12:45:57,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-24 12:45:57,416 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:45:57,416 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:45:57,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 12:45:57,417 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:45:57,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:45:57,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1495387820, now seen corresponding path program 1 times [2024-10-24 12:45:57,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:45:57,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411732834] [2024-10-24 12:45:57,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:45:57,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:45:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:57,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:45:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:57,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 12:45:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:57,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 12:45:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:57,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:45:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:57,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:45:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:57,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 12:45:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:57,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:45:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:57,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:45:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:57,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:45:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:58,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 12:45:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:58,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 12:45:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:58,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 12:45:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:58,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:45:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:58,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 12:45:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:58,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 12:45:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:58,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 12:45:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:58,063 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-10-24 12:45:58,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:45:58,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411732834] [2024-10-24 12:45:58,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411732834] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:45:58,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774162406] [2024-10-24 12:45:58,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:45:58,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:45:58,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:45:58,065 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:45:58,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 12:45:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:58,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 2601 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 12:45:58,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:45:58,637 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-24 12:45:58,637 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:45:58,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774162406] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:45:58,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:45:58,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2024-10-24 12:45:58,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438266786] [2024-10-24 12:45:58,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:45:58,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 12:45:58,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:45:58,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 12:45:58,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 12:45:58,639 INFO L87 Difference]: Start difference. First operand 143 states and 194 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-24 12:45:58,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:45:58,951 INFO L93 Difference]: Finished difference Result 275 states and 376 transitions. [2024-10-24 12:45:58,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 12:45:58,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 93 [2024-10-24 12:45:58,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:45:58,954 INFO L225 Difference]: With dead ends: 275 [2024-10-24 12:45:58,954 INFO L226 Difference]: Without dead ends: 145 [2024-10-24 12:45:58,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 12:45:58,956 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 37 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:45:58,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 596 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 12:45:58,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-10-24 12:45:58,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-10-24 12:45:58,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 87 states have (on average 1.2413793103448276) internal successors, (108), 89 states have internal predecessors, (108), 44 states have call successors, (44), 12 states have call predecessors, (44), 13 states have return successors, (46), 43 states have call predecessors, (46), 43 states have call successors, (46) [2024-10-24 12:45:58,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 198 transitions. [2024-10-24 12:45:58,969 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 198 transitions. Word has length 93 [2024-10-24 12:45:58,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:45:58,969 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 198 transitions. [2024-10-24 12:45:58,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-24 12:45:58,970 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 198 transitions. [2024-10-24 12:45:58,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-24 12:45:58,971 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:45:58,972 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:45:58,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 12:45:59,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:45:59,173 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:45:59,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:45:59,173 INFO L85 PathProgramCache]: Analyzing trace with hash 864616319, now seen corresponding path program 1 times [2024-10-24 12:45:59,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:45:59,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178226320] [2024-10-24 12:45:59,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:45:59,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:45:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:59,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:45:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:59,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 12:45:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:59,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 12:45:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:59,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:45:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:59,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:45:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:59,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:45:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:59,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:45:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:59,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 12:45:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:59,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:45:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:59,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 12:45:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:59,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 12:45:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:59,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:45:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:59,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 12:45:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:59,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 12:45:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:59,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 12:45:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:59,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 12:45:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:59,529 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-10-24 12:45:59,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:45:59,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178226320] [2024-10-24 12:45:59,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178226320] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:45:59,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206984065] [2024-10-24 12:45:59,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:45:59,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:45:59,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:45:59,531 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:45:59,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 12:45:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:45:59,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 2615 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 12:45:59,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:45:59,942 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-10-24 12:45:59,943 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:45:59,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206984065] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:45:59,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:45:59,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2024-10-24 12:45:59,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536960137] [2024-10-24 12:45:59,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:45:59,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 12:45:59,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:45:59,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 12:45:59,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:45:59,945 INFO L87 Difference]: Start difference. First operand 145 states and 198 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 12:46:00,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:46:00,251 INFO L93 Difference]: Finished difference Result 280 states and 387 transitions. [2024-10-24 12:46:00,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 12:46:00,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 99 [2024-10-24 12:46:00,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:46:00,253 INFO L225 Difference]: With dead ends: 280 [2024-10-24 12:46:00,253 INFO L226 Difference]: Without dead ends: 148 [2024-10-24 12:46:00,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:46:00,255 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:46:00,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 527 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 12:46:00,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-10-24 12:46:00,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 147. [2024-10-24 12:46:00,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 89 states have (on average 1.2359550561797752) internal successors, (110), 91 states have internal predecessors, (110), 44 states have call successors, (44), 12 states have call predecessors, (44), 13 states have return successors, (46), 43 states have call predecessors, (46), 43 states have call successors, (46) [2024-10-24 12:46:00,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 200 transitions. [2024-10-24 12:46:00,269 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 200 transitions. Word has length 99 [2024-10-24 12:46:00,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:46:00,270 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 200 transitions. [2024-10-24 12:46:00,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 12:46:00,270 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 200 transitions. [2024-10-24 12:46:00,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-24 12:46:00,274 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:46:00,274 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:46:00,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-24 12:46:00,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-24 12:46:00,475 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:46:00,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:46:00,475 INFO L85 PathProgramCache]: Analyzing trace with hash 941517117, now seen corresponding path program 1 times [2024-10-24 12:46:00,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:46:00,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121596624] [2024-10-24 12:46:00,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:46:00,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:46:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:00,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:00,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 12:46:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:00,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 12:46:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:00,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:00,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:46:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:00,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:46:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:00,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:46:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:00,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 12:46:00,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:00,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:46:00,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:00,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 12:46:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:00,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 12:46:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:00,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:46:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:00,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 12:46:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:00,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 12:46:00,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:00,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 12:46:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:00,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 12:46:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-10-24 12:46:00,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:46:00,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121596624] [2024-10-24 12:46:00,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121596624] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:46:00,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108015379] [2024-10-24 12:46:00,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:46:00,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:46:00,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:46:00,804 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:46:00,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 12:46:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:01,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 2610 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 12:46:01,176 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:46:01,196 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-10-24 12:46:01,196 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:46:01,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108015379] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:46:01,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:46:01,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2024-10-24 12:46:01,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652081492] [2024-10-24 12:46:01,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:46:01,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 12:46:01,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:46:01,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 12:46:01,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:46:01,200 INFO L87 Difference]: Start difference. First operand 147 states and 200 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 12:46:01,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:46:01,388 INFO L93 Difference]: Finished difference Result 283 states and 390 transitions. [2024-10-24 12:46:01,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 12:46:01,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 99 [2024-10-24 12:46:01,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:46:01,390 INFO L225 Difference]: With dead ends: 283 [2024-10-24 12:46:01,391 INFO L226 Difference]: Without dead ends: 149 [2024-10-24 12:46:01,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:46:01,392 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 12:46:01,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 528 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 12:46:01,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-10-24 12:46:01,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-10-24 12:46:01,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 91 states have (on average 1.2307692307692308) internal successors, (112), 93 states have internal predecessors, (112), 44 states have call successors, (44), 12 states have call predecessors, (44), 13 states have return successors, (46), 43 states have call predecessors, (46), 43 states have call successors, (46) [2024-10-24 12:46:01,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 202 transitions. [2024-10-24 12:46:01,407 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 202 transitions. Word has length 99 [2024-10-24 12:46:01,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:46:01,408 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 202 transitions. [2024-10-24 12:46:01,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 12:46:01,408 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 202 transitions. [2024-10-24 12:46:01,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-24 12:46:01,409 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:46:01,409 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:46:01,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 12:46:01,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:46:01,613 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:46:01,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:46:01,614 INFO L85 PathProgramCache]: Analyzing trace with hash -22606527, now seen corresponding path program 1 times [2024-10-24 12:46:01,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:46:01,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989164454] [2024-10-24 12:46:01,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:46:01,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:46:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:01,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:01,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 12:46:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:01,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 12:46:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:01,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:01,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:46:01,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:01,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:46:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:01,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:46:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:01,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 12:46:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:01,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:46:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:02,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 12:46:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:02,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 12:46:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:02,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:46:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:02,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 12:46:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:02,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 12:46:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:02,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 12:46:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:02,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 12:46:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:02,062 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-10-24 12:46:02,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:46:02,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989164454] [2024-10-24 12:46:02,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989164454] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:46:02,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41836460] [2024-10-24 12:46:02,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:46:02,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:46:02,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:46:02,067 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:46:02,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 12:46:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:02,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 2618 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 12:46:02,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:46:02,602 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 76 proven. 14 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 12:46:02,602 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 12:46:02,725 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-10-24 12:46:02,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41836460] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 12:46:02,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 12:46:02,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-10-24 12:46:02,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028800676] [2024-10-24 12:46:02,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 12:46:02,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 12:46:02,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:46:02,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 12:46:02,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-10-24 12:46:02,728 INFO L87 Difference]: Start difference. First operand 149 states and 202 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 7 states have call successors, (41), 4 states have call predecessors, (41), 5 states have return successors, (40), 7 states have call predecessors, (40), 7 states have call successors, (40) [2024-10-24 12:46:03,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:46:03,847 INFO L93 Difference]: Finished difference Result 271 states and 371 transitions. [2024-10-24 12:46:03,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:46:03,848 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 7 states have call successors, (41), 4 states have call predecessors, (41), 5 states have return successors, (40), 7 states have call predecessors, (40), 7 states have call successors, (40) Word has length 99 [2024-10-24 12:46:03,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:46:03,850 INFO L225 Difference]: With dead ends: 271 [2024-10-24 12:46:03,850 INFO L226 Difference]: Without dead ends: 151 [2024-10-24 12:46:03,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-10-24 12:46:03,851 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 186 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 12:46:03,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 446 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 12:46:03,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-10-24 12:46:03,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-10-24 12:46:03,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 92 states have (on average 1.2282608695652173) internal successors, (113), 95 states have internal predecessors, (113), 44 states have call successors, (44), 12 states have call predecessors, (44), 14 states have return successors, (49), 43 states have call predecessors, (49), 43 states have call successors, (49) [2024-10-24 12:46:03,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 206 transitions. [2024-10-24 12:46:03,863 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 206 transitions. Word has length 99 [2024-10-24 12:46:03,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:46:03,863 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 206 transitions. [2024-10-24 12:46:03,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 7 states have call successors, (41), 4 states have call predecessors, (41), 5 states have return successors, (40), 7 states have call predecessors, (40), 7 states have call successors, (40) [2024-10-24 12:46:03,863 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 206 transitions. [2024-10-24 12:46:03,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 12:46:03,864 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:46:03,864 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:46:03,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-24 12:46:04,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:46:04,065 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:46:04,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:46:04,065 INFO L85 PathProgramCache]: Analyzing trace with hash -799072548, now seen corresponding path program 1 times [2024-10-24 12:46:04,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:46:04,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224587997] [2024-10-24 12:46:04,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:46:04,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:46:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:04,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:04,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 12:46:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:04,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 12:46:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:04,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:04,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:46:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:04,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:46:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:04,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:46:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:04,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 12:46:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:04,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:46:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:04,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 12:46:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:04,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 12:46:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:04,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:46:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:04,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:46:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:04,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 12:46:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:04,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 12:46:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:04,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:46:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:04,506 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-10-24 12:46:04,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:46:04,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224587997] [2024-10-24 12:46:04,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224587997] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:46:04,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758589413] [2024-10-24 12:46:04,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:46:04,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:46:04,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:46:04,509 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:46:04,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 12:46:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:04,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 2623 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 12:46:04,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:46:04,966 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-24 12:46:04,966 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:46:04,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758589413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:46:04,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:46:04,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-10-24 12:46:04,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780690620] [2024-10-24 12:46:04,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:46:04,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 12:46:04,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:46:04,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 12:46:04,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-10-24 12:46:04,968 INFO L87 Difference]: Start difference. First operand 151 states and 206 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-24 12:46:05,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:46:05,269 INFO L93 Difference]: Finished difference Result 270 states and 367 transitions. [2024-10-24 12:46:05,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 12:46:05,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 101 [2024-10-24 12:46:05,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:46:05,271 INFO L225 Difference]: With dead ends: 270 [2024-10-24 12:46:05,272 INFO L226 Difference]: Without dead ends: 149 [2024-10-24 12:46:05,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-10-24 12:46:05,273 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 50 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:46:05,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 738 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 12:46:05,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-10-24 12:46:05,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-10-24 12:46:05,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 91 states have (on average 1.2197802197802199) internal successors, (111), 93 states have internal predecessors, (111), 44 states have call successors, (44), 12 states have call predecessors, (44), 13 states have return successors, (46), 43 states have call predecessors, (46), 43 states have call successors, (46) [2024-10-24 12:46:05,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 201 transitions. [2024-10-24 12:46:05,284 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 201 transitions. Word has length 101 [2024-10-24 12:46:05,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:46:05,284 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 201 transitions. [2024-10-24 12:46:05,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-24 12:46:05,284 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 201 transitions. [2024-10-24 12:46:05,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-24 12:46:05,285 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:46:05,285 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:46:05,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 12:46:05,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:46:05,485 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:46:05,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:46:05,486 INFO L85 PathProgramCache]: Analyzing trace with hash -346307332, now seen corresponding path program 1 times [2024-10-24 12:46:05,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:46:05,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470645643] [2024-10-24 12:46:05,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:46:05,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:46:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:05,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:05,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 12:46:05,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:05,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 12:46:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:05,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:05,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:46:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:05,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:46:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:05,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:46:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:05,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 12:46:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:05,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:46:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:05,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 12:46:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:05,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 12:46:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:05,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:46:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:05,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:46:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:05,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 12:46:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:05,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 12:46:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:05,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:46:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:05,911 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-24 12:46:05,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:46:05,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470645643] [2024-10-24 12:46:05,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470645643] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:46:05,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:46:05,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 12:46:05,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580258405] [2024-10-24 12:46:05,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:46:05,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 12:46:05,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:46:05,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 12:46:05,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 12:46:05,913 INFO L87 Difference]: Start difference. First operand 149 states and 201 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-24 12:46:06,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:46:06,550 INFO L93 Difference]: Finished difference Result 263 states and 352 transitions. [2024-10-24 12:46:06,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:46:06,551 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 113 [2024-10-24 12:46:06,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:46:06,552 INFO L225 Difference]: With dead ends: 263 [2024-10-24 12:46:06,552 INFO L226 Difference]: Without dead ends: 147 [2024-10-24 12:46:06,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-24 12:46:06,553 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 117 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 12:46:06,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 301 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 12:46:06,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-10-24 12:46:06,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-10-24 12:46:06,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 90 states have (on average 1.211111111111111) internal successors, (109), 91 states have internal predecessors, (109), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-10-24 12:46:06,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 196 transitions. [2024-10-24 12:46:06,568 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 196 transitions. Word has length 113 [2024-10-24 12:46:06,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:46:06,568 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 196 transitions. [2024-10-24 12:46:06,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-24 12:46:06,569 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 196 transitions. [2024-10-24 12:46:06,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-24 12:46:06,570 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:46:06,570 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:46:06,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 12:46:06,570 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:46:06,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:46:06,570 INFO L85 PathProgramCache]: Analyzing trace with hash -2096188841, now seen corresponding path program 1 times [2024-10-24 12:46:06,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:46:06,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325229996] [2024-10-24 12:46:06,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:46:06,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:46:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:07,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:07,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 12:46:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:07,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 12:46:07,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:07,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:07,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:46:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:07,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:46:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:07,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:46:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:07,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 12:46:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:07,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:46:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:07,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 12:46:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:07,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 12:46:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:07,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:46:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:07,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:46:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:07,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 12:46:07,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:07,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 12:46:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:07,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 12:46:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:07,580 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-10-24 12:46:07,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:46:07,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325229996] [2024-10-24 12:46:07,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325229996] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:46:07,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:46:07,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 12:46:07,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004697828] [2024-10-24 12:46:07,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:46:07,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 12:46:07,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:46:07,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 12:46:07,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 12:46:07,582 INFO L87 Difference]: Start difference. First operand 147 states and 196 transitions. Second operand has 9 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 12:46:08,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:46:08,492 INFO L93 Difference]: Finished difference Result 158 states and 211 transitions. [2024-10-24 12:46:08,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 12:46:08,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 115 [2024-10-24 12:46:08,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:46:08,494 INFO L225 Difference]: With dead ends: 158 [2024-10-24 12:46:08,494 INFO L226 Difference]: Without dead ends: 156 [2024-10-24 12:46:08,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-10-24 12:46:08,495 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 73 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 12:46:08,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 603 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 12:46:08,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-10-24 12:46:08,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 155. [2024-10-24 12:46:08,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 95 states have (on average 1.2) internal successors, (114), 97 states have internal predecessors, (114), 45 states have call successors, (45), 13 states have call predecessors, (45), 14 states have return successors, (49), 44 states have call predecessors, (49), 44 states have call successors, (49) [2024-10-24 12:46:08,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 208 transitions. [2024-10-24 12:46:08,504 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 208 transitions. Word has length 115 [2024-10-24 12:46:08,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:46:08,505 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 208 transitions. [2024-10-24 12:46:08,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 12:46:08,505 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 208 transitions. [2024-10-24 12:46:08,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-24 12:46:08,506 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:46:08,506 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:46:08,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 12:46:08,506 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:46:08,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:46:08,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1554073738, now seen corresponding path program 1 times [2024-10-24 12:46:08,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:46:08,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247283759] [2024-10-24 12:46:08,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:46:08,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:46:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:08,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:08,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 12:46:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:08,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 12:46:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:08,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:08,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:46:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:08,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:46:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:08,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:46:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:08,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 12:46:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:08,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:46:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:08,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 12:46:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:08,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 12:46:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:08,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:46:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:08,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:46:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:08,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 12:46:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:08,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 12:46:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:08,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 12:46:08,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:08,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:08,875 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-10-24 12:46:08,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:46:08,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247283759] [2024-10-24 12:46:08,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247283759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:46:08,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:46:08,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 12:46:08,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660146273] [2024-10-24 12:46:08,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:46:08,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 12:46:08,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:46:08,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 12:46:08,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 12:46:08,878 INFO L87 Difference]: Start difference. First operand 155 states and 208 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 12:46:09,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:46:09,689 INFO L93 Difference]: Finished difference Result 238 states and 312 transitions. [2024-10-24 12:46:09,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 12:46:09,690 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 119 [2024-10-24 12:46:09,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:46:09,691 INFO L225 Difference]: With dead ends: 238 [2024-10-24 12:46:09,691 INFO L226 Difference]: Without dead ends: 159 [2024-10-24 12:46:09,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-24 12:46:09,692 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 122 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 12:46:09,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 382 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 12:46:09,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-10-24 12:46:09,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2024-10-24 12:46:09,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 98 states have (on average 1.1938775510204083) internal successors, (117), 100 states have internal predecessors, (117), 45 states have call successors, (45), 13 states have call predecessors, (45), 15 states have return successors, (50), 45 states have call predecessors, (50), 44 states have call successors, (50) [2024-10-24 12:46:09,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 212 transitions. [2024-10-24 12:46:09,701 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 212 transitions. Word has length 119 [2024-10-24 12:46:09,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:46:09,701 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 212 transitions. [2024-10-24 12:46:09,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 12:46:09,702 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 212 transitions. [2024-10-24 12:46:09,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-24 12:46:09,703 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:46:09,703 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:46:09,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 12:46:09,703 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:46:09,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:46:09,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1892661237, now seen corresponding path program 1 times [2024-10-24 12:46:09,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:46:09,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075369738] [2024-10-24 12:46:09,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:46:09,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:46:09,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:10,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:10,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 12:46:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:10,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 12:46:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:10,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:10,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:46:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:10,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:46:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:10,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:46:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:10,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 12:46:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:10,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:46:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:10,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 12:46:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:10,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 12:46:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:10,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:46:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:10,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:46:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:10,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 12:46:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:10,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 12:46:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:10,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 12:46:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:10,815 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-24 12:46:10,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:46:10,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075369738] [2024-10-24 12:46:10,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075369738] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:46:10,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729267849] [2024-10-24 12:46:10,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:46:10,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:46:10,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:46:10,817 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:46:10,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 12:46:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:11,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 2666 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-24 12:46:11,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:46:11,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-24 12:46:11,558 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-10-24 12:46:11,560 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:46:11,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729267849] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:46:11,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:46:11,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 18 [2024-10-24 12:46:11,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284287420] [2024-10-24 12:46:11,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:46:11,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 12:46:11,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:46:11,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 12:46:11,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-10-24 12:46:11,563 INFO L87 Difference]: Start difference. First operand 159 states and 212 transitions. Second operand has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-24 12:46:16,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-24 12:46:20,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-24 12:46:24,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-24 12:46:28,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-24 12:46:33,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-24 12:46:33,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:46:33,460 INFO L93 Difference]: Finished difference Result 417 states and 556 transitions. [2024-10-24 12:46:33,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 12:46:33,460 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 119 [2024-10-24 12:46:33,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:46:33,462 INFO L225 Difference]: With dead ends: 417 [2024-10-24 12:46:33,462 INFO L226 Difference]: Without dead ends: 271 [2024-10-24 12:46:33,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-10-24 12:46:33,464 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 199 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 25 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2024-10-24 12:46:33,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 1099 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 751 Invalid, 5 Unknown, 0 Unchecked, 21.8s Time] [2024-10-24 12:46:33,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-10-24 12:46:33,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 254. [2024-10-24 12:46:33,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 161 states have (on average 1.204968944099379) internal successors, (194), 165 states have internal predecessors, (194), 69 states have call successors, (69), 21 states have call predecessors, (69), 23 states have return successors, (72), 67 states have call predecessors, (72), 67 states have call successors, (72) [2024-10-24 12:46:33,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 335 transitions. [2024-10-24 12:46:33,483 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 335 transitions. Word has length 119 [2024-10-24 12:46:33,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:46:33,483 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 335 transitions. [2024-10-24 12:46:33,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-24 12:46:33,484 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 335 transitions. [2024-10-24 12:46:33,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 12:46:33,485 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:46:33,485 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:46:33,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-24 12:46:33,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:46:33,689 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:46:33,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:46:33,689 INFO L85 PathProgramCache]: Analyzing trace with hash 948533311, now seen corresponding path program 2 times [2024-10-24 12:46:33,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:46:33,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295693755] [2024-10-24 12:46:33,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:46:33,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:46:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:34,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:34,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 12:46:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:34,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 12:46:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:34,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:34,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:46:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:34,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:46:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:35,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 12:46:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:35,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 12:46:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:35,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 12:46:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:35,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 12:46:35,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:35,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 12:46:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:35,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 12:46:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:35,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 12:46:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:35,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 12:46:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:35,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 12:46:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:35,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:46:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:35,191 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-10-24 12:46:35,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:46:35,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295693755] [2024-10-24 12:46:35,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295693755] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:46:35,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199021296] [2024-10-24 12:46:35,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 12:46:35,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:46:35,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:46:35,205 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:46:35,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 12:46:35,674 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 12:46:35,674 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 12:46:35,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 2670 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-10-24 12:46:35,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:46:35,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-24 12:46:36,501 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-10-24 12:46:36,502 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:46:36,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199021296] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:46:36,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:46:36,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 22 [2024-10-24 12:46:36,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038892735] [2024-10-24 12:46:36,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:46:36,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 12:46:36,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:46:36,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 12:46:36,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2024-10-24 12:46:36,504 INFO L87 Difference]: Start difference. First operand 254 states and 335 transitions. Second operand has 12 states, 10 states have (on average 7.5) internal successors, (75), 11 states have internal predecessors, (75), 5 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-10-24 12:46:41,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-24 12:46:45,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-24 12:46:49,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-24 12:46:53,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-24 12:46:58,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-24 12:46:58,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:46:58,505 INFO L93 Difference]: Finished difference Result 479 states and 637 transitions. [2024-10-24 12:46:58,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 12:46:58,506 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.5) internal successors, (75), 11 states have internal predecessors, (75), 5 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 123 [2024-10-24 12:46:58,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:46:58,508 INFO L225 Difference]: With dead ends: 479 [2024-10-24 12:46:58,508 INFO L226 Difference]: Without dead ends: 263 [2024-10-24 12:46:58,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 133 SyntacticMatches, 12 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=616, Unknown=0, NotChecked=0, Total=702 [2024-10-24 12:46:58,510 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 172 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 40 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2024-10-24 12:46:58,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 1057 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 832 Invalid, 5 Unknown, 0 Unchecked, 21.9s Time] [2024-10-24 12:46:58,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-10-24 12:46:58,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 249. [2024-10-24 12:46:58,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 158 states have (on average 1.2088607594936709) internal successors, (191), 162 states have internal predecessors, (191), 68 states have call successors, (68), 20 states have call predecessors, (68), 22 states have return successors, (69), 66 states have call predecessors, (69), 66 states have call successors, (69) [2024-10-24 12:46:58,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 328 transitions. [2024-10-24 12:46:58,526 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 328 transitions. Word has length 123 [2024-10-24 12:46:58,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:46:58,527 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 328 transitions. [2024-10-24 12:46:58,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.5) internal successors, (75), 11 states have internal predecessors, (75), 5 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-10-24 12:46:58,527 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 328 transitions. [2024-10-24 12:46:58,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-24 12:46:58,528 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:46:58,528 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:46:58,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-24 12:46:58,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:46:58,729 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:46:58,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:46:58,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1252968843, now seen corresponding path program 1 times [2024-10-24 12:46:58,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:46:58,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506114102] [2024-10-24 12:46:58,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:46:58,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:46:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:59,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:59,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 12:46:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:59,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 12:46:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:59,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:46:59,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:59,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:46:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:59,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:46:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:59,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 12:46:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:59,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 12:46:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:59,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 12:46:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:59,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 12:46:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:59,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 12:46:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:59,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 12:46:59,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:59,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 12:46:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:59,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:46:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:59,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:46:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:59,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 12:46:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:46:59,662 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-10-24 12:46:59,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:46:59,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506114102] [2024-10-24 12:46:59,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506114102] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:46:59,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173065152] [2024-10-24 12:46:59,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:46:59,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:46:59,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:46:59,664 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:46:59,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 12:47:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:00,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 2674 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-24 12:47:00,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:47:00,299 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-10-24 12:47:00,299 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:47:00,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173065152] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:47:00,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:47:00,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 18 [2024-10-24 12:47:00,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729195515] [2024-10-24 12:47:00,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:47:00,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 12:47:00,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:47:00,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 12:47:00,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-10-24 12:47:00,304 INFO L87 Difference]: Start difference. First operand 249 states and 328 transitions. Second operand has 10 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-24 12:47:01,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:47:01,189 INFO L93 Difference]: Finished difference Result 487 states and 647 transitions. [2024-10-24 12:47:01,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 12:47:01,189 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 127 [2024-10-24 12:47:01,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:47:01,191 INFO L225 Difference]: With dead ends: 487 [2024-10-24 12:47:01,191 INFO L226 Difference]: Without dead ends: 257 [2024-10-24 12:47:01,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-10-24 12:47:01,192 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 155 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 12:47:01,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 770 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 12:47:01,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-10-24 12:47:01,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 253. [2024-10-24 12:47:01,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 161 states have (on average 1.204968944099379) internal successors, (194), 166 states have internal predecessors, (194), 68 states have call successors, (68), 20 states have call predecessors, (68), 23 states have return successors, (74), 66 states have call predecessors, (74), 66 states have call successors, (74) [2024-10-24 12:47:01,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 336 transitions. [2024-10-24 12:47:01,209 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 336 transitions. Word has length 127 [2024-10-24 12:47:01,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:47:01,209 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 336 transitions. [2024-10-24 12:47:01,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-24 12:47:01,209 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 336 transitions. [2024-10-24 12:47:01,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-24 12:47:01,210 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:47:01,210 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:47:01,227 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-24 12:47:01,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-24 12:47:01,411 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:47:01,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:47:01,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1776269798, now seen corresponding path program 1 times [2024-10-24 12:47:01,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:47:01,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329252381] [2024-10-24 12:47:01,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:47:01,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:47:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:02,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:47:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:02,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 12:47:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:02,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 12:47:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:02,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:47:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:02,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:47:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:02,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:47:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:02,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 12:47:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:02,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:47:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:02,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:47:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:02,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 12:47:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:02,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 12:47:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:02,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 12:47:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:02,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 12:47:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:02,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 12:47:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:02,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 12:47:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:02,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:47:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:02,391 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-10-24 12:47:02,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:47:02,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329252381] [2024-10-24 12:47:02,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329252381] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:47:02,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220038792] [2024-10-24 12:47:02,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:47:02,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:47:02,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:47:02,393 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:47:02,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-24 12:47:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:02,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 2679 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-10-24 12:47:02,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:47:03,075 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 82 proven. 34 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-24 12:47:03,076 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 12:47:03,305 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-10-24 12:47:03,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220038792] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 12:47:03,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 12:47:03,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16, 11] total 23 [2024-10-24 12:47:03,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810023223] [2024-10-24 12:47:03,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 12:47:03,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 12:47:03,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:47:03,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 12:47:03,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2024-10-24 12:47:03,307 INFO L87 Difference]: Start difference. First operand 253 states and 336 transitions. Second operand has 23 states, 17 states have (on average 6.823529411764706) internal successors, (116), 19 states have internal predecessors, (116), 6 states have call successors, (35), 5 states have call predecessors, (35), 8 states have return successors, (33), 5 states have call predecessors, (33), 6 states have call successors, (33) [2024-10-24 12:47:05,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:47:05,675 INFO L93 Difference]: Finished difference Result 484 states and 645 transitions. [2024-10-24 12:47:05,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 12:47:05,676 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 17 states have (on average 6.823529411764706) internal successors, (116), 19 states have internal predecessors, (116), 6 states have call successors, (35), 5 states have call predecessors, (35), 8 states have return successors, (33), 5 states have call predecessors, (33), 6 states have call successors, (33) Word has length 129 [2024-10-24 12:47:05,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:47:05,682 INFO L225 Difference]: With dead ends: 484 [2024-10-24 12:47:05,682 INFO L226 Difference]: Without dead ends: 269 [2024-10-24 12:47:05,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 277 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=151, Invalid=1255, Unknown=0, NotChecked=0, Total=1406 [2024-10-24 12:47:05,684 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 177 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 2227 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 2349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 2227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-24 12:47:05,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 1055 Invalid, 2349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 2227 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-24 12:47:05,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-10-24 12:47:05,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 253. [2024-10-24 12:47:05,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 161 states have (on average 1.204968944099379) internal successors, (194), 166 states have internal predecessors, (194), 68 states have call successors, (68), 20 states have call predecessors, (68), 23 states have return successors, (73), 66 states have call predecessors, (73), 66 states have call successors, (73) [2024-10-24 12:47:05,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 335 transitions. [2024-10-24 12:47:05,704 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 335 transitions. Word has length 129 [2024-10-24 12:47:05,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:47:05,704 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 335 transitions. [2024-10-24 12:47:05,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 17 states have (on average 6.823529411764706) internal successors, (116), 19 states have internal predecessors, (116), 6 states have call successors, (35), 5 states have call predecessors, (35), 8 states have return successors, (33), 5 states have call predecessors, (33), 6 states have call successors, (33) [2024-10-24 12:47:05,705 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 335 transitions. [2024-10-24 12:47:05,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 12:47:05,706 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:47:05,706 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:47:05,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-24 12:47:05,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-24 12:47:05,910 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:47:05,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:47:05,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1220954347, now seen corresponding path program 2 times [2024-10-24 12:47:05,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:47:05,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766714812] [2024-10-24 12:47:05,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:47:05,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:47:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:06,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:47:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:06,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 12:47:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:06,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 12:47:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:06,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:47:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:06,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:47:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:06,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:47:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:06,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 12:47:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:06,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:47:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:06,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:47:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:06,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 12:47:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:06,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 12:47:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:06,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:47:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:06,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:47:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:06,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 12:47:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:06,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 12:47:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:06,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 12:47:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:47:06,819 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-10-24 12:47:06,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:47:06,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766714812] [2024-10-24 12:47:06,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766714812] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:47:06,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507627280] [2024-10-24 12:47:06,820 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 12:47:06,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:47:06,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:47:06,821 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:47:06,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-24 12:47:07,290 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 12:47:07,290 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 12:47:07,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 2684 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-10-24 12:47:07,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:47:08,263 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 96 proven. 6 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-24 12:47:08,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 12:47:08,844 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 28 proven. 13 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-10-24 12:47:08,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507627280] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 12:47:08,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 12:47:08,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 11] total 29 [2024-10-24 12:47:08,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524014975] [2024-10-24 12:47:08,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 12:47:08,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-24 12:47:08,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:47:08,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-24 12:47:08,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=720, Unknown=0, NotChecked=0, Total=812 [2024-10-24 12:47:08,847 INFO L87 Difference]: Start difference. First operand 253 states and 335 transitions. Second operand has 29 states, 28 states have (on average 4.607142857142857) internal successors, (129), 27 states have internal predecessors, (129), 8 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (39), 7 states have call predecessors, (39), 8 states have call successors, (39) [2024-10-24 12:47:14,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-24 12:47:18,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]