./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_cursor_read_be64_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_cursor_read_be64_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 9b90640eabcf61bf9b6c4e01fcd2a39b8b829676407f71504872cd65ce1f895a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 12:54:51,469 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 12:54:51,538 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 12:54:51,544 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 12:54:51,545 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 12:54:51,565 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 12:54:51,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 12:54:51,566 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 12:54:51,566 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 12:54:51,567 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 12:54:51,567 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 12:54:51,568 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 12:54:51,568 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 12:54:51,568 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 12:54:51,569 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 12:54:51,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 12:54:51,570 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 12:54:51,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 12:54:51,570 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 12:54:51,571 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 12:54:51,571 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 12:54:51,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 12:54:51,574 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 12:54:51,575 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 12:54:51,575 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 12:54:51,575 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 12:54:51,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 12:54:51,575 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 12:54:51,576 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 12:54:51,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:54:51,576 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 12:54:51,576 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 12:54:51,576 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 12:54:51,577 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 12:54:51,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 12:54:51,578 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 12:54:51,579 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 12:54:51,579 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 12:54:51,579 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 12:54:51,579 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b90640eabcf61bf9b6c4e01fcd2a39b8b829676407f71504872cd65ce1f895a [2024-10-24 12:54:51,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 12:54:51,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 12:54:51,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 12:54:51,850 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 12:54:51,851 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 12:54:51,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i [2024-10-24 12:54:53,304 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 12:54:53,799 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 12:54:53,801 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i [2024-10-24 12:54:53,841 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70fa1b38d/1fa594f6f7d64a7385d82d3807c74b98/FLAG764dee0a8 [2024-10-24 12:54:53,859 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70fa1b38d/1fa594f6f7d64a7385d82d3807c74b98 [2024-10-24 12:54:53,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 12:54:53,864 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 12:54:53,867 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 12:54:53,867 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 12:54:53,872 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 12:54:53,873 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:54:53" (1/1) ... [2024-10-24 12:54:53,874 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47de909a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:53, skipping insertion in model container [2024-10-24 12:54:53,876 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:54:53" (1/1) ... [2024-10-24 12:54:53,973 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 12:54:54,256 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_cursor_read_be64_harness.i[4499,4512] [2024-10-24 12:54:54,265 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_cursor_read_be64_harness.i[4559,4572] [2024-10-24 12:54:54,961 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:54,962 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:54,962 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:54,963 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:54,967 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:54,982 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:54,984 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:54,986 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:54,989 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:55,530 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:55,530 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:55,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:54:55,661 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 12:54:55,677 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_cursor_read_be64_harness.i[4499,4512] [2024-10-24 12:54:55,681 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_cursor_read_be64_harness.i[4559,4572] [2024-10-24 12:54:55,806 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:55,806 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:55,806 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:55,806 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:55,807 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:55,824 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:55,834 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:55,835 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:55,835 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:55,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2024-10-24 12:54:55,995 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:55,996 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:56,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2024-10-24 12:54:56,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:54:56,216 INFO L204 MainTranslator]: Completed translation [2024-10-24 12:54:56,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:56 WrapperNode [2024-10-24 12:54:56,217 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 12:54:56,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 12:54:56,218 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 12:54:56,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 12:54:56,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:56" (1/1) ... [2024-10-24 12:54:56,338 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:56" (1/1) ... [2024-10-24 12:54:56,438 INFO L138 Inliner]: procedures = 680, calls = 2627, calls flagged for inlining = 61, calls inlined = 11, statements flattened = 1024 [2024-10-24 12:54:56,439 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 12:54:56,440 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 12:54:56,440 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 12:54:56,440 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 12:54:56,451 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:56" (1/1) ... [2024-10-24 12:54:56,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:56" (1/1) ... [2024-10-24 12:54:56,459 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:56" (1/1) ... [2024-10-24 12:54:56,556 INFO L175 MemorySlicer]: Split 566 memory accesses to 9 slices as follows [8, 2, 256, 246, 37, 4, 2, 6, 5]. 45 percent of accesses are in the largest equivalence class. The 506 initializations are split as follows [2, 2, 256, 236, 2, 2, 1, 0, 5]. The 15 writes are split as follows [0, 0, 0, 4, 9, 0, 0, 2, 0]. [2024-10-24 12:54:56,558 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:56" (1/1) ... [2024-10-24 12:54:56,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:56" (1/1) ... [2024-10-24 12:54:56,615 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:56" (1/1) ... [2024-10-24 12:54:56,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:56" (1/1) ... [2024-10-24 12:54:56,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:56" (1/1) ... [2024-10-24 12:54:56,646 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:56" (1/1) ... [2024-10-24 12:54:56,657 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 12:54:56,658 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 12:54:56,658 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 12:54:56,658 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 12:54:56,659 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:56" (1/1) ... [2024-10-24 12:54:56,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:54:56,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:54:56,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 12:54:56,702 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 12:54:56,746 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2024-10-24 12:54:56,747 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2024-10-24 12:54:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hton64 [2024-10-24 12:54:56,748 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hton64 [2024-10-24 12:54:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-10-24 12:54:56,748 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-10-24 12:54:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 12:54:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-24 12:54:56,748 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-24 12:54:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-10-24 12:54:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-10-24 12:54:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-10-24 12:54:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-10-24 12:54:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-10-24 12:54:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-10-24 12:54:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2024-10-24 12:54:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2024-10-24 12:54:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#8 [2024-10-24 12:54:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-10-24 12:54:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-10-24 12:54:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-10-24 12:54:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-10-24 12:54:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-10-24 12:54:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-10-24 12:54:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-10-24 12:54:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-10-24 12:54:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-10-24 12:54:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-10-24 12:54:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-10-24 12:54:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-10-24 12:54:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-10-24 12:54:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-10-24 12:54:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-10-24 12:54:56,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-10-24 12:54:56,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-10-24 12:54:56,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-10-24 12:54:56,751 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ntoh64 [2024-10-24 12:54:56,751 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ntoh64 [2024-10-24 12:54:56,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 12:54:56,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 12:54:56,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 12:54:56,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 12:54:56,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 12:54:56,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-24 12:54:56,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-24 12:54:56,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-24 12:54:56,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-24 12:54:56,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-10-24 12:54:56,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-10-24 12:54:56,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-10-24 12:54:56,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-10-24 12:54:56,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-10-24 12:54:56,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-10-24 12:54:56,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-10-24 12:54:56,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-10-24 12:54:56,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-10-24 12:54:56,757 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-10-24 12:54:56,757 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-10-24 12:54:56,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-10-24 12:54:56,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-10-24 12:54:56,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-10-24 12:54:56,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-10-24 12:54:56,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-10-24 12:54:56,759 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-10-24 12:54:56,759 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-10-24 12:54:56,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 12:54:56,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 12:54:56,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 12:54:56,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 12:54:56,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 12:54:56,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 12:54:56,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 12:54:56,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-24 12:54:56,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-24 12:54:56,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-24 12:54:56,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-24 12:54:56,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-24 12:54:56,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-10-24 12:54:56,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 12:54:56,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 12:54:56,762 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-24 12:54:56,762 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-24 12:54:56,762 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-10-24 12:54:56,762 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-10-24 12:54:56,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-10-24 12:54:56,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-10-24 12:54:56,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-10-24 12:54:56,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-10-24 12:54:56,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-10-24 12:54:56,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-10-24 12:54:56,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-10-24 12:54:56,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-10-24 12:54:56,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-10-24 12:54:56,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-10-24 12:54:56,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-10-24 12:54:56,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-10-24 12:54:56,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-10-24 12:54:56,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-10-24 12:54:56,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-10-24 12:54:56,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-10-24 12:54:56,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-10-24 12:54:56,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-10-24 12:54:56,765 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-10-24 12:54:56,766 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-10-24 12:54:56,766 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 12:54:56,766 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 12:54:56,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 12:54:56,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 12:54:56,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 12:54:56,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 12:54:56,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-24 12:54:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-24 12:54:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-24 12:54:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-24 12:54:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-24 12:54:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-10-24 12:54:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-24 12:54:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-24 12:54:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-24 12:54:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-24 12:54:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-24 12:54:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-24 12:54:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-24 12:54:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-10-24 12:54:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-10-24 12:54:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-10-24 12:54:56,768 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-10-24 12:54:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 12:54:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 12:54:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 12:54:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 12:54:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 12:54:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-24 12:54:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-24 12:54:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-24 12:54:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-24 12:54:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_big_endian [2024-10-24 12:54:56,771 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_big_endian [2024-10-24 12:54:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-10-24 12:54:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-10-24 12:54:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-10-24 12:54:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-10-24 12:54:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-10-24 12:54:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-10-24 12:54:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2024-10-24 12:54:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2024-10-24 12:54:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#8 [2024-10-24 12:54:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 12:54:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 12:54:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 12:54:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 12:54:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 12:54:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-24 12:54:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-24 12:54:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-24 12:54:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-24 12:54:57,177 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 12:54:57,180 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 12:54:58,750 INFO L? ?]: Removed 271 outVars from TransFormulas that were not future-live. [2024-10-24 12:54:58,750 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 12:54:58,854 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 12:54:58,856 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 12:54:58,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:54:58 BoogieIcfgContainer [2024-10-24 12:54:58,856 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 12:54:58,859 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 12:54:58,859 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 12:54:58,862 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 12:54:58,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:54:53" (1/3) ... [2024-10-24 12:54:58,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f57b9b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:54:58, skipping insertion in model container [2024-10-24 12:54:58,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:56" (2/3) ... [2024-10-24 12:54:58,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f57b9b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:54:58, skipping insertion in model container [2024-10-24 12:54:58,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:54:58" (3/3) ... [2024-10-24 12:54:58,866 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_be64_harness.i [2024-10-24 12:54:58,881 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 12:54:58,881 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 12:54:58,945 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 12:54:58,954 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;@6a3e65a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 12:54:58,955 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 12:54:58,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 179 states, 114 states have (on average 1.3245614035087718) internal successors, (151), 115 states have internal predecessors, (151), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-24 12:54:58,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 12:54:58,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:54:58,977 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:54:58,977 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:54:58,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:54:58,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1391858654, now seen corresponding path program 1 times [2024-10-24 12:54:58,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:54:58,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626535460] [2024-10-24 12:54:58,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:54:58,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:54:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:00,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 12:55:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 12:55:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:55:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:55:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:55:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:55:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 12:55:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:55:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 12:55:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 12:55:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 12:55:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 12:55:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 12:55:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 12:55:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 12:55:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 12:55:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:55:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:00,589 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-10-24 12:55:00,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:55:00,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626535460] [2024-10-24 12:55:00,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626535460] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:55:00,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123275428] [2024-10-24 12:55:00,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:55:00,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:55:00,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:55:00,596 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 12:55:00,598 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 12:55:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:01,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 2762 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 12:55:01,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:55:01,340 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-10-24 12:55:01,340 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:55:01,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123275428] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:55:01,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:55:01,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2024-10-24 12:55:01,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137673269] [2024-10-24 12:55:01,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:55:01,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 12:55:01,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:55:01,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 12:55:01,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 12:55:01,381 INFO L87 Difference]: Start difference. First operand has 179 states, 114 states have (on average 1.3245614035087718) internal successors, (151), 115 states have internal predecessors, (151), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-24 12:55:01,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:55:01,529 INFO L93 Difference]: Finished difference Result 352 states and 523 transitions. [2024-10-24 12:55:01,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 12:55:01,535 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 122 [2024-10-24 12:55:01,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:55:01,548 INFO L225 Difference]: With dead ends: 352 [2024-10-24 12:55:01,548 INFO L226 Difference]: Without dead ends: 177 [2024-10-24 12:55:01,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 12:55:01,558 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 12:55:01,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 12:55:01,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-10-24 12:55:01,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-10-24 12:55:01,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 113 states have (on average 1.3097345132743363) internal successors, (148), 114 states have internal predecessors, (148), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-10-24 12:55:01,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 247 transitions. [2024-10-24 12:55:01,615 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 247 transitions. Word has length 122 [2024-10-24 12:55:01,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:55:01,617 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 247 transitions. [2024-10-24 12:55:01,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-24 12:55:01,617 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 247 transitions. [2024-10-24 12:55:01,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 12:55:01,623 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:55:01,623 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:55:01,641 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 12:55:01,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-24 12:55:01,826 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:55:01,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:55:01,826 INFO L85 PathProgramCache]: Analyzing trace with hash 38260440, now seen corresponding path program 1 times [2024-10-24 12:55:01,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:55:01,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598344931] [2024-10-24 12:55:01,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:55:01,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:55:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 12:55:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 12:55:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:55:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:55:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:55:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:55:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 12:55:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:55:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 12:55:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 12:55:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 12:55:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 12:55:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 12:55:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 12:55:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 12:55:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 12:55:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:55:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:02,699 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-10-24 12:55:02,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:55:02,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598344931] [2024-10-24 12:55:02,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598344931] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:55:02,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917567568] [2024-10-24 12:55:02,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:55:02,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:55:02,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:55:02,703 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 12:55:02,705 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 12:55:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:03,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 2762 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 12:55:03,340 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:55:03,452 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-10-24 12:55:03,452 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:55:03,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917567568] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:55:03,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:55:03,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-10-24 12:55:03,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261629153] [2024-10-24 12:55:03,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:55:03,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 12:55:03,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:55:03,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 12:55:03,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-24 12:55:03,456 INFO L87 Difference]: Start difference. First operand 177 states and 247 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-10-24 12:55:03,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:55:03,667 INFO L93 Difference]: Finished difference Result 334 states and 477 transitions. [2024-10-24 12:55:03,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 12:55:03,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 122 [2024-10-24 12:55:03,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:55:03,671 INFO L225 Difference]: With dead ends: 334 [2024-10-24 12:55:03,671 INFO L226 Difference]: Without dead ends: 179 [2024-10-24 12:55:03,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-24 12:55:03,673 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 34 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 12:55:03,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 782 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 12:55:03,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-10-24 12:55:03,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-10-24 12:55:03,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 114 states have (on average 1.3070175438596492) internal successors, (149), 116 states have internal predecessors, (149), 50 states have call successors, (50), 13 states have call predecessors, (50), 14 states have return successors, (57), 49 states have call predecessors, (57), 49 states have call successors, (57) [2024-10-24 12:55:03,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 256 transitions. [2024-10-24 12:55:03,700 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 256 transitions. Word has length 122 [2024-10-24 12:55:03,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:55:03,702 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 256 transitions. [2024-10-24 12:55:03,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-10-24 12:55:03,702 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 256 transitions. [2024-10-24 12:55:03,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-24 12:55:03,704 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:55:03,704 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:55:03,729 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 12:55:03,904 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,SelfDestructingSolverStorable1 [2024-10-24 12:55:03,905 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:55:03,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:55:03,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1161770125, now seen corresponding path program 1 times [2024-10-24 12:55:03,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:55:03,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576821136] [2024-10-24 12:55:03,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:55:03,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:55:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 12:55:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 12:55:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:55:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 12:55:04,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 12:55:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:55:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 12:55:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:55:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 12:55:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 12:55:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 12:55:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 12:55:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 12:55:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 12:55:04,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 12:55:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:55:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 12:55:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:04,758 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-10-24 12:55:04,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:55:04,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576821136] [2024-10-24 12:55:04,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576821136] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:55:04,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821060687] [2024-10-24 12:55:04,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:55:04,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:55:04,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:55:04,761 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 12:55:04,763 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 12:55:05,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:05,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 2767 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 12:55:05,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:55:05,491 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-10-24 12:55:05,491 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:55:05,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821060687] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:55:05,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:55:05,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-10-24 12:55:05,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802153423] [2024-10-24 12:55:05,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:55:05,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 12:55:05,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:55:05,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 12:55:05,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-10-24 12:55:05,494 INFO L87 Difference]: Start difference. First operand 179 states and 256 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2024-10-24 12:55:05,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:55:05,793 INFO L93 Difference]: Finished difference Result 320 states and 458 transitions. [2024-10-24 12:55:05,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 12:55:05,793 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 124 [2024-10-24 12:55:05,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:55:05,796 INFO L225 Difference]: With dead ends: 320 [2024-10-24 12:55:05,796 INFO L226 Difference]: Without dead ends: 179 [2024-10-24 12:55:05,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-24 12:55:05,798 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 33 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:55:05,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 992 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 12:55:05,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-10-24 12:55:05,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-10-24 12:55:05,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 114 states have (on average 1.3070175438596492) internal successors, (149), 116 states have internal predecessors, (149), 50 states have call successors, (50), 13 states have call predecessors, (50), 14 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2024-10-24 12:55:05,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 254 transitions. [2024-10-24 12:55:05,824 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 254 transitions. Word has length 124 [2024-10-24 12:55:05,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:55:05,824 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 254 transitions. [2024-10-24 12:55:05,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2024-10-24 12:55:05,825 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 254 transitions. [2024-10-24 12:55:05,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-24 12:55:05,828 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:55:05,828 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:55:05,850 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 12:55:06,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:55:06,029 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:55:06,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:55:06,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2082764658, now seen corresponding path program 2 times [2024-10-24 12:55:06,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:55:06,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108264305] [2024-10-24 12:55:06,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:55:06,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:55:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 12:55:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 12:55:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:55:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 12:55:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 12:55:06,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:55:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 12:55:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:55:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 12:55:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:55:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:55:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 12:55:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:55:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:55:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:55:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 12:55:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 12:55:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:06,786 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2024-10-24 12:55:06,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:55:06,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108264305] [2024-10-24 12:55:06,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108264305] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:55:06,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111246663] [2024-10-24 12:55:06,787 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 12:55:06,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:55:06,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:55:06,789 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 12:55:06,790 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 12:55:07,439 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 12:55:07,440 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 12:55:07,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 2772 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-24 12:55:07,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:55:07,615 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2024-10-24 12:55:07,615 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:55:07,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111246663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:55:07,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:55:07,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2024-10-24 12:55:07,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510517107] [2024-10-24 12:55:07,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:55:07,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 12:55:07,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:55:07,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 12:55:07,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-10-24 12:55:07,618 INFO L87 Difference]: Start difference. First operand 179 states and 254 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 6 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) [2024-10-24 12:55:08,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:55:08,115 INFO L93 Difference]: Finished difference Result 314 states and 445 transitions. [2024-10-24 12:55:08,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 12:55:08,116 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 6 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) Word has length 126 [2024-10-24 12:55:08,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:55:08,118 INFO L225 Difference]: With dead ends: 314 [2024-10-24 12:55:08,118 INFO L226 Difference]: Without dead ends: 179 [2024-10-24 12:55:08,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-10-24 12:55:08,120 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 175 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 12:55:08,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 1250 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 12:55:08,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-10-24 12:55:08,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-10-24 12:55:08,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 114 states have (on average 1.3070175438596492) internal successors, (149), 116 states have internal predecessors, (149), 50 states have call successors, (50), 13 states have call predecessors, (50), 14 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2024-10-24 12:55:08,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 249 transitions. [2024-10-24 12:55:08,138 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 249 transitions. Word has length 126 [2024-10-24 12:55:08,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:55:08,138 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 249 transitions. [2024-10-24 12:55:08,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 6 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) [2024-10-24 12:55:08,138 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 249 transitions. [2024-10-24 12:55:08,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-24 12:55:08,140 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:55:08,140 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:55:08,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 12:55:08,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:55:08,341 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:55:08,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:55:08,341 INFO L85 PathProgramCache]: Analyzing trace with hash 979174793, now seen corresponding path program 1 times [2024-10-24 12:55:08,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:55:08,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163501740] [2024-10-24 12:55:08,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:55:08,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:55:08,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 12:55:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 12:55:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:55:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 12:55:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 12:55:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:55:09,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 12:55:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:55:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 12:55:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:55:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:55:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 12:55:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 12:55:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 12:55:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 12:55:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:55:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-24 12:55:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:09,612 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-10-24 12:55:09,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:55:09,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163501740] [2024-10-24 12:55:09,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163501740] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:55:09,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:55:09,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 12:55:09,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91204792] [2024-10-24 12:55:09,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:55:09,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 12:55:09,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:55:09,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 12:55:09,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 12:55:09,614 INFO L87 Difference]: Start difference. First operand 179 states and 249 transitions. Second operand has 10 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-24 12:55:11,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:55:11,102 INFO L93 Difference]: Finished difference Result 203 states and 289 transitions. [2024-10-24 12:55:11,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 12:55:11,103 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 132 [2024-10-24 12:55:11,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:55:11,105 INFO L225 Difference]: With dead ends: 203 [2024-10-24 12:55:11,105 INFO L226 Difference]: Without dead ends: 201 [2024-10-24 12:55:11,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-10-24 12:55:11,107 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 170 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:55:11,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 1034 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 12:55:11,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-10-24 12:55:11,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 187. [2024-10-24 12:55:11,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 119 states have (on average 1.2941176470588236) internal successors, (154), 122 states have internal predecessors, (154), 51 states have call successors, (51), 14 states have call predecessors, (51), 16 states have return successors, (61), 50 states have call predecessors, (61), 50 states have call successors, (61) [2024-10-24 12:55:11,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 266 transitions. [2024-10-24 12:55:11,137 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 266 transitions. Word has length 132 [2024-10-24 12:55:11,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:55:11,138 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 266 transitions. [2024-10-24 12:55:11,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-24 12:55:11,138 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 266 transitions. [2024-10-24 12:55:11,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 12:55:11,140 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:55:11,140 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:55:11,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 12:55:11,141 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:55:11,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:55:11,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1631140609, now seen corresponding path program 1 times [2024-10-24 12:55:11,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:55:11,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671890534] [2024-10-24 12:55:11,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:55:11,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:55:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 12:55:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 12:55:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:55:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 12:55:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 12:55:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:55:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 12:55:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:55:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 12:55:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:55:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:55:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 12:55:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 12:55:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 12:55:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 12:55:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:55:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-24 12:55:12,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:12,899 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-10-24 12:55:12,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:55:12,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671890534] [2024-10-24 12:55:12,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671890534] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:55:12,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991588991] [2024-10-24 12:55:12,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:55:12,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:55:12,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:55:12,904 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 12:55:12,905 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 12:55:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:13,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 2799 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-10-24 12:55:13,596 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:55:13,743 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-10-24 12:55:13,743 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:55:13,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991588991] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:55:13,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:55:13,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 14 [2024-10-24 12:55:13,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218036953] [2024-10-24 12:55:13,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:55:13,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 12:55:13,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:55:13,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 12:55:13,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-10-24 12:55:13,746 INFO L87 Difference]: Start difference. First operand 187 states and 266 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2024-10-24 12:55:14,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:55:14,456 INFO L93 Difference]: Finished difference Result 361 states and 517 transitions. [2024-10-24 12:55:14,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 12:55:14,457 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 136 [2024-10-24 12:55:14,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:55:14,460 INFO L225 Difference]: With dead ends: 361 [2024-10-24 12:55:14,460 INFO L226 Difference]: Without dead ends: 187 [2024-10-24 12:55:14,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-10-24 12:55:14,465 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 2 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 12:55:14,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1731 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 12:55:14,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-10-24 12:55:14,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2024-10-24 12:55:14,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 119 states have (on average 1.2857142857142858) internal successors, (153), 122 states have internal predecessors, (153), 51 states have call successors, (51), 14 states have call predecessors, (51), 16 states have return successors, (61), 50 states have call predecessors, (61), 50 states have call successors, (61) [2024-10-24 12:55:14,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 265 transitions. [2024-10-24 12:55:14,498 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 265 transitions. Word has length 136 [2024-10-24 12:55:14,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:55:14,498 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 265 transitions. [2024-10-24 12:55:14,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2024-10-24 12:55:14,499 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 265 transitions. [2024-10-24 12:55:14,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-24 12:55:14,500 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:55:14,501 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:55:14,525 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 12:55:14,701 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 12:55:14,702 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:55:14,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:55:14,702 INFO L85 PathProgramCache]: Analyzing trace with hash -461881641, now seen corresponding path program 1 times [2024-10-24 12:55:14,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:55:14,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725740011] [2024-10-24 12:55:14,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:55:14,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:55:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:55:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:55:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:55:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:55:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:55:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:55:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 12:55:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 12:55:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 12:55:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 12:55:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 12:55:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 12:55:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 12:55:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:55:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:55:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 12:55:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 12:55:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 12:55:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:15,451 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-10-24 12:55:15,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:55:15,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725740011] [2024-10-24 12:55:15,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725740011] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:55:15,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:55:15,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 12:55:15,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149122290] [2024-10-24 12:55:15,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:55:15,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 12:55:15,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:55:15,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 12:55:15,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 12:55:15,454 INFO L87 Difference]: Start difference. First operand 187 states and 265 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-24 12:55:16,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:55:16,499 INFO L93 Difference]: Finished difference Result 353 states and 505 transitions. [2024-10-24 12:55:16,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 12:55:16,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 146 [2024-10-24 12:55:16,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:55:16,505 INFO L225 Difference]: With dead ends: 353 [2024-10-24 12:55:16,505 INFO L226 Difference]: Without dead ends: 200 [2024-10-24 12:55:16,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 12:55:16,507 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 156 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 12:55:16,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 530 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 12:55:16,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-10-24 12:55:16,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 190. [2024-10-24 12:55:16,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 121 states have (on average 1.2975206611570247) internal successors, (157), 125 states have internal predecessors, (157), 51 states have call successors, (51), 14 states have call predecessors, (51), 17 states have return successors, (62), 50 states have call predecessors, (62), 50 states have call successors, (62) [2024-10-24 12:55:16,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 270 transitions. [2024-10-24 12:55:16,523 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 270 transitions. Word has length 146 [2024-10-24 12:55:16,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:55:16,524 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 270 transitions. [2024-10-24 12:55:16,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-24 12:55:16,524 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 270 transitions. [2024-10-24 12:55:16,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 12:55:16,526 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:55:16,526 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:55:16,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 12:55:16,526 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:55:16,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:55:16,527 INFO L85 PathProgramCache]: Analyzing trace with hash -969610115, now seen corresponding path program 1 times [2024-10-24 12:55:16,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:55:16,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735781736] [2024-10-24 12:55:16,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:55:16,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:55:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:55:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:55:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:55:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:55:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:55:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:55:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 12:55:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 12:55:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 12:55:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 12:55:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 12:55:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 12:55:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:55:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 12:55:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 12:55:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 12:55:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 12:55:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-24 12:55:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:17,522 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-10-24 12:55:17,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:55:17,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735781736] [2024-10-24 12:55:17,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735781736] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:55:17,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6048558] [2024-10-24 12:55:17,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:55:17,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:55:17,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:55:17,525 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 12:55:17,527 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 12:55:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:18,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 2961 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 12:55:18,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:55:18,229 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 124 proven. 1 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-24 12:55:18,230 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 12:55:18,378 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-10-24 12:55:18,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6048558] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 12:55:18,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 12:55:18,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 10 [2024-10-24 12:55:18,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269037727] [2024-10-24 12:55:18,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:55:18,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 12:55:18,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:55:18,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 12:55:18,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-24 12:55:18,381 INFO L87 Difference]: Start difference. First operand 190 states and 270 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-24 12:55:18,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:55:18,598 INFO L93 Difference]: Finished difference Result 352 states and 506 transitions. [2024-10-24 12:55:18,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 12:55:18,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 147 [2024-10-24 12:55:18,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:55:18,600 INFO L225 Difference]: With dead ends: 352 [2024-10-24 12:55:18,600 INFO L226 Difference]: Without dead ends: 195 [2024-10-24 12:55:18,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 333 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-24 12:55:18,602 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 4 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 12:55:18,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 455 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 12:55:18,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-10-24 12:55:18,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 193. [2024-10-24 12:55:18,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 124 states have (on average 1.2903225806451613) internal successors, (160), 127 states have internal predecessors, (160), 51 states have call successors, (51), 15 states have call predecessors, (51), 17 states have return successors, (62), 50 states have call predecessors, (62), 50 states have call successors, (62) [2024-10-24 12:55:18,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 273 transitions. [2024-10-24 12:55:18,621 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 273 transitions. Word has length 147 [2024-10-24 12:55:18,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:55:18,622 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 273 transitions. [2024-10-24 12:55:18,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-24 12:55:18,622 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 273 transitions. [2024-10-24 12:55:18,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 12:55:18,623 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:55:18,623 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:55:18,646 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 12:55:18,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:55:18,824 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:55:18,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:55:18,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1696569767, now seen corresponding path program 1 times [2024-10-24 12:55:18,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:55:18,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251535831] [2024-10-24 12:55:18,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:55:18,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:55:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:55:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:55:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:55:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:55:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:55:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:55:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 12:55:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 12:55:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 12:55:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 12:55:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:55:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:55:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 12:55:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 12:55:19,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 12:55:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 12:55:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 12:55:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 12:55:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:19,811 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2024-10-24 12:55:19,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:55:19,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251535831] [2024-10-24 12:55:19,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251535831] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:55:19,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770224555] [2024-10-24 12:55:19,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:55:19,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:55:19,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:55:19,814 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 12:55:19,815 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 12:55:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:20,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 2984 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 12:55:20,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:55:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-10-24 12:55:20,559 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:55:20,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770224555] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:55:20,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:55:20,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-10-24 12:55:20,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144421494] [2024-10-24 12:55:20,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:55:20,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 12:55:20,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:55:20,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 12:55:20,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 12:55:20,562 INFO L87 Difference]: Start difference. First operand 193 states and 273 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-24 12:55:21,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:55:21,077 INFO L93 Difference]: Finished difference Result 348 states and 497 transitions. [2024-10-24 12:55:21,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 12:55:21,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 148 [2024-10-24 12:55:21,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:55:21,080 INFO L225 Difference]: With dead ends: 348 [2024-10-24 12:55:21,081 INFO L226 Difference]: Without dead ends: 193 [2024-10-24 12:55:21,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 12:55:21,082 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 0 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 12:55:21,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 685 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 12:55:21,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-10-24 12:55:21,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2024-10-24 12:55:21,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 124 states have (on average 1.282258064516129) internal successors, (159), 127 states have internal predecessors, (159), 51 states have call successors, (51), 15 states have call predecessors, (51), 17 states have return successors, (62), 50 states have call predecessors, (62), 50 states have call successors, (62) [2024-10-24 12:55:21,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 272 transitions. [2024-10-24 12:55:21,105 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 272 transitions. Word has length 148 [2024-10-24 12:55:21,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:55:21,105 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 272 transitions. [2024-10-24 12:55:21,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-24 12:55:21,106 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 272 transitions. [2024-10-24 12:55:21,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-24 12:55:21,108 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:55:21,108 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:55:21,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-24 12:55:21,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:55:21,309 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:55:21,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:55:21,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1606735548, now seen corresponding path program 1 times [2024-10-24 12:55:21,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:55:21,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212359893] [2024-10-24 12:55:21,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:55:21,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:55:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:55:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:55:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:55:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:55:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:55:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:55:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 12:55:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 12:55:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 12:55:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:22,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 12:55:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 12:55:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 12:55:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:55:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 12:55:22,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 12:55:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 12:55:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-24 12:55:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 12:55:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:22,366 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2024-10-24 12:55:22,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:55:22,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212359893] [2024-10-24 12:55:22,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212359893] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:55:22,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884442016] [2024-10-24 12:55:22,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:55:22,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:55:22,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:55:22,369 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 12:55:22,370 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 12:55:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:23,184 INFO L255 TraceCheckSpWp]: Trace formula consists of 2992 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 12:55:23,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:55:23,230 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 124 proven. 1 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-24 12:55:23,230 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 12:55:23,398 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2024-10-24 12:55:23,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884442016] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 12:55:23,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 12:55:23,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2024-10-24 12:55:23,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104763174] [2024-10-24 12:55:23,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 12:55:23,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 12:55:23,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:55:23,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 12:55:23,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-10-24 12:55:23,400 INFO L87 Difference]: Start difference. First operand 193 states and 272 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 10 states have internal predecessors, (92), 2 states have call successors, (43), 4 states have call predecessors, (43), 5 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-10-24 12:55:24,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:55:24,726 INFO L93 Difference]: Finished difference Result 369 states and 526 transitions. [2024-10-24 12:55:24,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 12:55:24,727 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 10 states have internal predecessors, (92), 2 states have call successors, (43), 4 states have call predecessors, (43), 5 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 150 [2024-10-24 12:55:24,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:55:24,729 INFO L225 Difference]: With dead ends: 369 [2024-10-24 12:55:24,729 INFO L226 Difference]: Without dead ends: 212 [2024-10-24 12:55:24,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2024-10-24 12:55:24,730 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 160 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 12:55:24,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 532 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 12:55:24,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-10-24 12:55:24,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 197. [2024-10-24 12:55:24,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 128 states have (on average 1.296875) internal successors, (166), 131 states have internal predecessors, (166), 51 states have call successors, (51), 15 states have call predecessors, (51), 17 states have return successors, (62), 50 states have call predecessors, (62), 50 states have call successors, (62) [2024-10-24 12:55:24,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 279 transitions. [2024-10-24 12:55:24,746 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 279 transitions. Word has length 150 [2024-10-24 12:55:24,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:55:24,746 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 279 transitions. [2024-10-24 12:55:24,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 10 states have internal predecessors, (92), 2 states have call successors, (43), 4 states have call predecessors, (43), 5 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-10-24 12:55:24,746 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 279 transitions. [2024-10-24 12:55:24,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-24 12:55:24,748 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:55:24,748 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:55:24,773 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 12:55:24,948 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,SelfDestructingSolverStorable9 [2024-10-24 12:55:24,949 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:55:24,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:55:24,949 INFO L85 PathProgramCache]: Analyzing trace with hash -2139498710, now seen corresponding path program 2 times [2024-10-24 12:55:24,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:55:24,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223521402] [2024-10-24 12:55:24,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:55:24,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:55:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:25,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:25,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:25,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:55:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:25,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:25,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:55:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:25,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:55:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:25,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:55:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:25,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:55:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:25,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:55:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:25,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 12:55:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:25,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 12:55:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:26,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:55:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:26,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:26,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:26,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 12:55:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:26,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 12:55:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:26,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 12:55:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:26,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:55:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:26,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 12:55:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:26,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 12:55:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:26,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 12:55:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:26,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-24 12:55:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:26,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 12:55:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:26,391 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2024-10-24 12:55:26,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:55:26,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223521402] [2024-10-24 12:55:26,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223521402] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:55:26,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907862210] [2024-10-24 12:55:26,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 12:55:26,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:55:26,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:55:26,394 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 12:55:26,395 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 12:55:27,925 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 12:55:27,925 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 12:55:27,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 3376 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-24 12:55:27,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:55:28,049 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 124 proven. 10 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-24 12:55:28,049 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 12:55:28,322 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2024-10-24 12:55:28,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907862210] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 12:55:28,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 12:55:28,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 21 [2024-10-24 12:55:28,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979275267] [2024-10-24 12:55:28,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 12:55:28,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 12:55:28,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:55:28,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 12:55:28,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2024-10-24 12:55:28,325 INFO L87 Difference]: Start difference. First operand 197 states and 279 transitions. Second operand has 21 states, 21 states have (on average 4.809523809523809) internal successors, (101), 19 states have internal predecessors, (101), 2 states have call successors, (43), 4 states have call predecessors, (43), 5 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-10-24 12:55:30,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:55:30,611 INFO L93 Difference]: Finished difference Result 383 states and 549 transitions. [2024-10-24 12:55:30,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 12:55:30,612 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.809523809523809) internal successors, (101), 19 states have internal predecessors, (101), 2 states have call successors, (43), 4 states have call predecessors, (43), 5 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 153 [2024-10-24 12:55:30,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:55:30,614 INFO L225 Difference]: With dead ends: 383 [2024-10-24 12:55:30,615 INFO L226 Difference]: Without dead ends: 222 [2024-10-24 12:55:30,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=256, Invalid=866, Unknown=0, NotChecked=0, Total=1122 [2024-10-24 12:55:30,616 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 168 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 12:55:30,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1030 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 12:55:30,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-10-24 12:55:30,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 201. [2024-10-24 12:55:30,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 132 states have (on average 1.3181818181818181) internal successors, (174), 135 states have internal predecessors, (174), 51 states have call successors, (51), 15 states have call predecessors, (51), 17 states have return successors, (62), 50 states have call predecessors, (62), 50 states have call successors, (62) [2024-10-24 12:55:30,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 287 transitions. [2024-10-24 12:55:30,631 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 287 transitions. Word has length 153 [2024-10-24 12:55:30,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:55:30,631 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 287 transitions. [2024-10-24 12:55:30,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.809523809523809) internal successors, (101), 19 states have internal predecessors, (101), 2 states have call successors, (43), 4 states have call predecessors, (43), 5 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-10-24 12:55:30,632 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 287 transitions. [2024-10-24 12:55:30,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 12:55:30,634 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:55:30,634 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:55:30,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-24 12:55:30,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:55:30,835 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:55:30,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:55:30,835 INFO L85 PathProgramCache]: Analyzing trace with hash 509406634, now seen corresponding path program 3 times [2024-10-24 12:55:30,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:55:30,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735431770] [2024-10-24 12:55:30,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:55:30,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:55:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:33,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:33,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:33,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:55:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:33,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:33,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:55:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:33,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:55:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:33,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:55:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:33,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:55:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:33,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:55:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:33,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 12:55:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:33,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 12:55:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:34,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 12:55:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:34,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:34,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:55:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:34,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 12:55:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:34,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:55:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:34,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:55:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:34,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 12:55:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:34,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 12:55:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:34,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-24 12:55:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:34,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-24 12:55:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:34,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 12:55:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:34,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-24 12:55:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:55:34,302 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 11 proven. 36 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-10-24 12:55:34,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:55:34,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735431770] [2024-10-24 12:55:34,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735431770] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:55:34,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216450062] [2024-10-24 12:55:34,302 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 12:55:34,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:55:34,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:55:34,304 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 12:55:34,307 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 12:55:36,011 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-10-24 12:55:36,011 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 12:55:36,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 2811 conjuncts, 122 conjuncts are in the unsatisfiable core [2024-10-24 12:55:36,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:55:36,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 12:55:36,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-10-24 12:55:36,116 WARN L873 $PredicateComparison]: unable to prove that (exists ((|bounded_malloc_#res.base| Int)) (and (<= (+ |bounded_malloc_#res.base| 1) |c_#StackHeapBarrier|) (= |c_#valid| (store |c_old(#valid)| |bounded_malloc_#res.base| (select |c_#valid| |bounded_malloc_#res.base|))))) is different from true [2024-10-24 12:55:36,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 12:55:36,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-24 12:55:36,744 INFO L349 Elim1Store]: treesize reduction 36, result has 21.7 percent of original size [2024-10-24 12:55:36,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 21 [2024-10-24 12:55:36,763 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-10-24 12:55:36,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-10-24 12:55:36,884 INFO L349 Elim1Store]: treesize reduction 68, result has 39.3 percent of original size [2024-10-24 12:55:36,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 41 treesize of output 66 [2024-10-24 12:55:37,460 INFO L349 Elim1Store]: treesize reduction 68, result has 39.3 percent of original size [2024-10-24 12:55:37,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 41 treesize of output 66 [2024-10-24 12:55:40,084 INFO L349 Elim1Store]: treesize reduction 74, result has 75.5 percent of original size [2024-10-24 12:55:40,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 61 treesize of output 271