./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_be16_harness_negated.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_be16_harness_negated.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 df84751ae907cf8e2f81d69c2889b453b5ccdd1cae9e7b45e78c48443104a63e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 12:54:29,683 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 12:54:29,747 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 12:54:29,751 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 12:54:29,753 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 12:54:29,767 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 12:54:29,768 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 12:54:29,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 12:54:29,768 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 12:54:29,768 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 12:54:29,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 12:54:29,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 12:54:29,769 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 12:54:29,769 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 12:54:29,770 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 12:54:29,770 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 12:54:29,770 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 12:54:29,770 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 12:54:29,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 12:54:29,771 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 12:54:29,771 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 12:54:29,774 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 12:54:29,774 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 12:54:29,774 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 12:54:29,774 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 12:54:29,775 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 12:54:29,775 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 12:54:29,775 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 12:54:29,775 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 12:54:29,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:54:29,776 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 12:54:29,777 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 12:54:29,778 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 12:54:29,778 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 12:54:29,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 12:54:29,778 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 12:54:29,778 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 12:54:29,778 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 12:54:29,778 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 12:54:29,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df84751ae907cf8e2f81d69c2889b453b5ccdd1cae9e7b45e78c48443104a63e [2024-10-24 12:54:29,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 12:54:29,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 12:54:29,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 12:54:29,998 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 12:54:29,999 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 12:54:29,999 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness_negated.i [2024-10-24 12:54:31,188 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 12:54:31,540 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 12:54:31,540 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness_negated.i [2024-10-24 12:54:31,578 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcddaea8b/48f8eb7d9f0e4c78947f49f7b9690e78/FLAG8fe161e15 [2024-10-24 12:54:31,592 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcddaea8b/48f8eb7d9f0e4c78947f49f7b9690e78 [2024-10-24 12:54:31,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 12:54:31,596 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 12:54:31,598 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 12:54:31,599 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 12:54:31,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 12:54:31,603 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:54:31" (1/1) ... [2024-10-24 12:54:31,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@826e28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:31, skipping insertion in model container [2024-10-24 12:54:31,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:54:31" (1/1) ... [2024-10-24 12:54:31,733 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 12:54:31,960 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_be16_harness_negated.i[4499,4512] [2024-10-24 12:54:31,966 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_be16_harness_negated.i[4559,4572] [2024-10-24 12:54:32,459 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:32,459 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:32,460 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:32,461 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:32,462 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:32,476 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:32,477 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:32,480 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:32,480 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:32,856 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:32,857 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:32,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:54:32,953 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 12:54:32,967 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_be16_harness_negated.i[4499,4512] [2024-10-24 12:54:32,967 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_be16_harness_negated.i[4559,4572] [2024-10-24 12:54:32,989 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:32,989 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:32,990 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:32,990 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:32,990 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:32,999 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:32,999 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:33,000 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:33,000 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:33,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2024-10-24 12:54:33,132 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:33,132 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:54:33,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8723-8734] [2024-10-24 12:54:33,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:54:33,332 INFO L204 MainTranslator]: Completed translation [2024-10-24 12:54:33,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:33 WrapperNode [2024-10-24 12:54:33,333 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 12:54:33,334 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 12:54:33,334 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 12:54:33,334 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 12:54:33,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:33" (1/1) ... [2024-10-24 12:54:33,411 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:33" (1/1) ... [2024-10-24 12:54:33,485 INFO L138 Inliner]: procedures = 680, calls = 2627, calls flagged for inlining = 61, calls inlined = 11, statements flattened = 1024 [2024-10-24 12:54:33,486 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 12:54:33,487 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 12:54:33,487 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 12:54:33,487 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 12:54:33,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:33" (1/1) ... [2024-10-24 12:54:33,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:33" (1/1) ... [2024-10-24 12:54:33,508 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:33" (1/1) ... [2024-10-24 12:54:33,569 INFO L175 MemorySlicer]: Split 564 memory accesses to 8 slices as follows [2, 256, 246, 4, 37, 6, 5, 8]. 45 percent of accesses are in the largest equivalence class. The 505 initializations are split as follows [2, 256, 236, 2, 2, 0, 5, 2]. The 15 writes are split as follows [0, 0, 4, 0, 9, 2, 0, 0]. [2024-10-24 12:54:33,570 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:33" (1/1) ... [2024-10-24 12:54:33,570 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:33" (1/1) ... [2024-10-24 12:54:33,594 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:33" (1/1) ... [2024-10-24 12:54:33,598 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:33" (1/1) ... [2024-10-24 12:54:33,612 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:33" (1/1) ... [2024-10-24 12:54:33,624 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:33" (1/1) ... [2024-10-24 12:54:33,637 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 12:54:33,642 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 12:54:33,642 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 12:54:33,642 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 12:54:33,643 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:33" (1/1) ... [2024-10-24 12:54:33,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:54:33,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:54:33,694 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 12:54:33,696 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 12:54:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2024-10-24 12:54:33,733 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2024-10-24 12:54:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-10-24 12:54:33,733 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-10-24 12:54:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 12:54:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-24 12:54:33,734 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-24 12:54:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-10-24 12:54:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-10-24 12:54:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-10-24 12:54:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-10-24 12:54:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-10-24 12:54:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-10-24 12:54:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2024-10-24 12:54:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2024-10-24 12:54:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-10-24 12:54:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-10-24 12:54:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-10-24 12:54:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-10-24 12:54:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-10-24 12:54:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-10-24 12:54:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-10-24 12:54:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-10-24 12:54:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-10-24 12:54:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-10-24 12:54:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-10-24 12:54:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-10-24 12:54:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-10-24 12:54:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-10-24 12:54:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-10-24 12:54:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-10-24 12:54:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 12:54:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 12:54:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 12:54:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 12:54:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 12:54:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-24 12:54:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-24 12:54:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-24 12:54:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-10-24 12:54:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-10-24 12:54:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-10-24 12:54:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-10-24 12:54:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-10-24 12:54:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-10-24 12:54:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-10-24 12:54:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-10-24 12:54:33,738 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-10-24 12:54:33,738 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-10-24 12:54:33,738 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-10-24 12:54:33,739 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-10-24 12:54:33,739 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-10-24 12:54:33,739 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-10-24 12:54:33,739 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-10-24 12:54:33,740 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-10-24 12:54:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 12:54:33,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 12:54:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 12:54:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ntoh16 [2024-10-24 12:54:33,740 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ntoh16 [2024-10-24 12:54:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 12:54:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 12:54:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 12:54:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 12:54:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-24 12:54:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-24 12:54:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-24 12:54:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-24 12:54:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-24 12:54:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 12:54:33,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 12:54:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-24 12:54:33,741 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-24 12:54:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-10-24 12:54:33,741 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-10-24 12:54:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-10-24 12:54:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-10-24 12:54:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-10-24 12:54:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-10-24 12:54:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-10-24 12:54:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-10-24 12:54:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-10-24 12:54:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-10-24 12:54:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-10-24 12:54:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-10-24 12:54:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-10-24 12:54:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-10-24 12:54:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-10-24 12:54:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-10-24 12:54:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-10-24 12:54:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-10-24 12:54:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-10-24 12:54:33,742 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-10-24 12:54:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 12:54:33,742 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 12:54:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 12:54:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 12:54:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 12:54:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 12:54:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-24 12:54:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-24 12:54:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-24 12:54:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-24 12:54:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-24 12:54:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-24 12:54:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-24 12:54:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-24 12:54:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-24 12:54:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-24 12:54:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-24 12:54:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-24 12:54:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-10-24 12:54:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-10-24 12:54:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-10-24 12:54:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 12:54:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 12:54:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 12:54:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 12:54:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 12:54:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-24 12:54:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-24 12:54:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-24 12:54:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-10-24 12:54:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-10-24 12:54:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-10-24 12:54:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-10-24 12:54:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-10-24 12:54:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-10-24 12:54:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2024-10-24 12:54:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2024-10-24 12:54:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 12:54:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 12:54:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 12:54:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 12:54:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 12:54:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-24 12:54:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-24 12:54:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-24 12:54:34,039 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 12:54:34,042 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 12:54:35,148 INFO L? ?]: Removed 248 outVars from TransFormulas that were not future-live. [2024-10-24 12:54:35,148 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 12:54:35,233 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 12:54:35,233 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 12:54:35,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:54:35 BoogieIcfgContainer [2024-10-24 12:54:35,233 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 12:54:35,236 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 12:54:35,236 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 12:54:35,238 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 12:54:35,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:54:31" (1/3) ... [2024-10-24 12:54:35,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f92d19e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:54:35, skipping insertion in model container [2024-10-24 12:54:35,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:33" (2/3) ... [2024-10-24 12:54:35,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f92d19e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:54:35, skipping insertion in model container [2024-10-24 12:54:35,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:54:35" (3/3) ... [2024-10-24 12:54:35,240 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_be16_harness_negated.i [2024-10-24 12:54:35,251 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 12:54:35,252 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 12:54:35,304 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 12:54:35,310 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;@3c925911, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 12:54:35,311 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 12:54:35,314 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 104 states have (on average 1.3269230769230769) internal successors, (138), 105 states have internal predecessors, (138), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 12:54:35,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-24 12:54:35,327 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:54:35,328 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] [2024-10-24 12:54:35,328 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:54:35,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:54:35,333 INFO L85 PathProgramCache]: Analyzing trace with hash -474500211, now seen corresponding path program 1 times [2024-10-24 12:54:35,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:54:35,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884659835] [2024-10-24 12:54:35,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:54:35,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:54:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 12:54:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 12:54:36,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:54:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:54:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:54:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:54:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 12:54:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:54:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 12:54:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 12:54:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:54:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 12:54:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 12:54:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 12:54:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 12:54:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:54:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 12:54:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,456 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 12:54:36,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:54:36,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884659835] [2024-10-24 12:54:36,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884659835] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:54:36,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467293377] [2024-10-24 12:54:36,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:54:36,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:54:36,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:54:36,459 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 12:54:36,460 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 12:54:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:36,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 2721 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 12:54:36,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:54:36,958 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 12:54:36,959 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:54:36,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467293377] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:54:36,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:54:36,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2024-10-24 12:54:36,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053217146] [2024-10-24 12:54:36,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:54:36,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 12:54:36,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:54:36,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 12:54:36,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 12:54:36,989 INFO L87 Difference]: Start difference. First operand has 165 states, 104 states have (on average 1.3269230769230769) internal successors, (138), 105 states have internal predecessors, (138), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-24 12:54:37,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:54:37,107 INFO L93 Difference]: Finished difference Result 324 states and 489 transitions. [2024-10-24 12:54:37,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 12:54:37,110 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 112 [2024-10-24 12:54:37,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:54:37,116 INFO L225 Difference]: With dead ends: 324 [2024-10-24 12:54:37,116 INFO L226 Difference]: Without dead ends: 163 [2024-10-24 12:54:37,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 12:54:37,127 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 12:54:37,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 218 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 12:54:37,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-10-24 12:54:37,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2024-10-24 12:54:37,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 103 states have (on average 1.3106796116504855) internal successors, (135), 104 states have internal predecessors, (135), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-10-24 12:54:37,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 230 transitions. [2024-10-24 12:54:37,168 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 230 transitions. Word has length 112 [2024-10-24 12:54:37,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:54:37,169 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 230 transitions. [2024-10-24 12:54:37,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-24 12:54:37,169 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 230 transitions. [2024-10-24 12:54:37,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-24 12:54:37,171 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:54:37,171 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] [2024-10-24 12:54:37,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 12:54:37,372 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 12:54:37,372 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:54:37,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:54:37,373 INFO L85 PathProgramCache]: Analyzing trace with hash -727142077, now seen corresponding path program 1 times [2024-10-24 12:54:37,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:54:37,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001729514] [2024-10-24 12:54:37,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:54:37,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:54:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 12:54:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 12:54:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:54:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:54:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:54:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:54:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 12:54:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:54:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 12:54:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 12:54:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:54:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 12:54:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 12:54:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 12:54:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 12:54:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:54:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 12:54:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:37,945 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 12:54:37,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:54:37,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001729514] [2024-10-24 12:54:37,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001729514] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:54:37,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247342283] [2024-10-24 12:54:37,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:54:37,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:54:37,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:54:37,949 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 12:54:37,950 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 12:54:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:38,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 2721 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 12:54:38,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:54:38,517 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 12:54:38,517 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:54:38,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247342283] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:54:38,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:54:38,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-10-24 12:54:38,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16369282] [2024-10-24 12:54:38,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:54:38,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 12:54:38,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:54:38,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 12:54:38,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-24 12:54:38,523 INFO L87 Difference]: Start difference. First operand 163 states and 230 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-24 12:54:38,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:54:38,754 INFO L93 Difference]: Finished difference Result 306 states and 443 transitions. [2024-10-24 12:54:38,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 12:54:38,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 112 [2024-10-24 12:54:38,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:54:38,757 INFO L225 Difference]: With dead ends: 306 [2024-10-24 12:54:38,758 INFO L226 Difference]: Without dead ends: 165 [2024-10-24 12:54:38,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-24 12:54:38,760 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 34 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 12:54:38,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 531 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 12:54:38,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-10-24 12:54:38,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-10-24 12:54:38,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 104 states have (on average 1.3076923076923077) internal successors, (136), 106 states have internal predecessors, (136), 48 states have call successors, (48), 11 states have call predecessors, (48), 12 states have return successors, (55), 47 states have call predecessors, (55), 47 states have call successors, (55) [2024-10-24 12:54:38,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 239 transitions. [2024-10-24 12:54:38,787 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 239 transitions. Word has length 112 [2024-10-24 12:54:38,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:54:38,788 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 239 transitions. [2024-10-24 12:54:38,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-24 12:54:38,788 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 239 transitions. [2024-10-24 12:54:38,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 12:54:38,790 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:54:38,790 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] [2024-10-24 12:54:38,806 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 12:54:38,992 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 12:54:38,993 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:54:38,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:54:38,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1612833598, now seen corresponding path program 1 times [2024-10-24 12:54:38,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:54:38,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630413669] [2024-10-24 12:54:38,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:54:38,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:54:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 12:54:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 12:54:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:54:39,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 12:54:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 12:54:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:54:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 12:54:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:54:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 12:54:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:54:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:54:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 12:54:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:54:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:54:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:54:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 12:54:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 12:54:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,492 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 12:54:39,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:54:39,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630413669] [2024-10-24 12:54:39,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630413669] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:54:39,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409879297] [2024-10-24 12:54:39,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:54:39,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:54:39,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:54:39,494 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 12:54:39,495 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 12:54:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:39,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 2726 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 12:54:39,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:54:40,030 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 12:54:40,030 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:54:40,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409879297] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:54:40,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:54:40,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-10-24 12:54:40,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860768454] [2024-10-24 12:54:40,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:54:40,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 12:54:40,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:54:40,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 12:54:40,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-10-24 12:54:40,032 INFO L87 Difference]: Start difference. First operand 165 states and 239 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-24 12:54:40,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:54:40,315 INFO L93 Difference]: Finished difference Result 292 states and 424 transitions. [2024-10-24 12:54:40,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 12:54:40,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 114 [2024-10-24 12:54:40,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:54:40,317 INFO L225 Difference]: With dead ends: 292 [2024-10-24 12:54:40,317 INFO L226 Difference]: Without dead ends: 165 [2024-10-24 12:54:40,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 145 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 12:54:40,319 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 33 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:54:40,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 912 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 12:54:40,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-10-24 12:54:40,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-10-24 12:54:40,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 104 states have (on average 1.3076923076923077) internal successors, (136), 106 states have internal predecessors, (136), 48 states have call successors, (48), 11 states have call predecessors, (48), 12 states have return successors, (53), 47 states have call predecessors, (53), 47 states have call successors, (53) [2024-10-24 12:54:40,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 237 transitions. [2024-10-24 12:54:40,328 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 237 transitions. Word has length 114 [2024-10-24 12:54:40,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:54:40,329 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 237 transitions. [2024-10-24 12:54:40,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-24 12:54:40,329 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 237 transitions. [2024-10-24 12:54:40,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-24 12:54:40,330 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:54:40,331 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] [2024-10-24 12:54:40,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-24 12:54:40,531 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 12:54:40,531 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:54:40,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:54:40,532 INFO L85 PathProgramCache]: Analyzing trace with hash -730078983, now seen corresponding path program 2 times [2024-10-24 12:54:40,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:54:40,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842689275] [2024-10-24 12:54:40,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:54:40,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:54:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:40,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:40,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:40,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 12:54:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:40,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 12:54:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:40,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:54:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:40,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 12:54:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:40,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 12:54:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:40,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:54:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:40,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 12:54:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:40,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:54:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:40,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 12:54:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:41,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 12:54:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:41,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 12:54:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:41,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 12:54:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:41,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 12:54:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:41,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 12:54:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:41,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 12:54:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:41,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 12:54:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:41,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:54:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:41,069 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 12:54:41,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:54:41,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842689275] [2024-10-24 12:54:41,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842689275] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:54:41,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780867495] [2024-10-24 12:54:41,070 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 12:54:41,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:54:41,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:54:41,072 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 12:54:41,073 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 12:54:41,453 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 12:54:41,453 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 12:54:41,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 2279 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-24 12:54:41,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:54:41,521 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-24 12:54:41,522 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:54:41,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780867495] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:54:41,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:54:41,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-10-24 12:54:41,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701602052] [2024-10-24 12:54:41,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:54:41,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 12:54:41,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:54:41,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 12:54:41,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2024-10-24 12:54:41,524 INFO L87 Difference]: Start difference. First operand 165 states and 237 transitions. Second operand has 7 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:54:41,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:54:41,823 INFO L93 Difference]: Finished difference Result 173 states and 245 transitions. [2024-10-24 12:54:41,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:54:41,825 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 116 [2024-10-24 12:54:41,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:54:41,827 INFO L225 Difference]: With dead ends: 173 [2024-10-24 12:54:41,827 INFO L226 Difference]: Without dead ends: 171 [2024-10-24 12:54:41,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-10-24 12:54:41,828 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 3 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:54:41,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1265 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 12:54:41,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-10-24 12:54:41,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 170. [2024-10-24 12:54:41,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 107 states have (on average 1.2990654205607477) internal successors, (139), 109 states have internal predecessors, (139), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (54), 48 states have call predecessors, (54), 48 states have call successors, (54) [2024-10-24 12:54:41,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 242 transitions. [2024-10-24 12:54:41,838 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 242 transitions. Word has length 116 [2024-10-24 12:54:41,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:54:41,838 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 242 transitions. [2024-10-24 12:54:41,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:54:41,838 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 242 transitions. [2024-10-24 12:54:41,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-24 12:54:41,839 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:54:41,840 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:54:41,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-24 12:54:42,045 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 12:54:42,045 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:54:42,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:54:42,046 INFO L85 PathProgramCache]: Analyzing trace with hash 515189620, now seen corresponding path program 3 times [2024-10-24 12:54:42,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:54:42,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219836150] [2024-10-24 12:54:42,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:54:42,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:54:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 12:54:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 12:54:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:54:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 12:54:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 12:54:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:54:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 12:54:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:54:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 12:54:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 12:54:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 12:54:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 12:54:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 12:54:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 12:54:42,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 12:54:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 12:54:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:54:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:42,580 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-24 12:54:42,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:54:42,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219836150] [2024-10-24 12:54:42,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219836150] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:54:42,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060247132] [2024-10-24 12:54:42,580 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 12:54:42,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:54:42,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:54:42,582 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 12:54:42,583 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 12:54:43,089 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-24 12:54:43,090 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 12:54:43,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 2387 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-24 12:54:43,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:54:43,152 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-10-24 12:54:43,152 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:54:43,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060247132] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:54:43,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:54:43,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-10-24 12:54:43,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350046461] [2024-10-24 12:54:43,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:54:43,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 12:54:43,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:54:43,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 12:54:43,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2024-10-24 12:54:43,154 INFO L87 Difference]: Start difference. First operand 170 states and 242 transitions. Second operand has 7 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-24 12:54:43,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:54:43,411 INFO L93 Difference]: Finished difference Result 291 states and 412 transitions. [2024-10-24 12:54:43,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:54:43,412 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 118 [2024-10-24 12:54:43,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:54:43,413 INFO L225 Difference]: With dead ends: 291 [2024-10-24 12:54:43,414 INFO L226 Difference]: Without dead ends: 170 [2024-10-24 12:54:43,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2024-10-24 12:54:43,415 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 0 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 12:54:43,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1191 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 12:54:43,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-10-24 12:54:43,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2024-10-24 12:54:43,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 107 states have (on average 1.2990654205607477) internal successors, (139), 109 states have internal predecessors, (139), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (53), 48 states have call predecessors, (53), 48 states have call successors, (53) [2024-10-24 12:54:43,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 241 transitions. [2024-10-24 12:54:43,428 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 241 transitions. Word has length 118 [2024-10-24 12:54:43,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:54:43,428 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 241 transitions. [2024-10-24 12:54:43,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-24 12:54:43,430 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 241 transitions. [2024-10-24 12:54:43,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-24 12:54:43,431 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:54:43,431 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:54:43,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-24 12:54:43,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:54:43,636 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:54:43,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:54:43,636 INFO L85 PathProgramCache]: Analyzing trace with hash -267482727, now seen corresponding path program 4 times [2024-10-24 12:54:43,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:54:43,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059527444] [2024-10-24 12:54:43,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:54:43,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:54:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 12:54:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 12:54:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:54:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 12:54:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 12:54:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:54:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 12:54:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:54:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 12:54:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 12:54:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 12:54:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 12:54:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 12:54:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 12:54:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 12:54:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:54:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 12:54:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:44,146 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-10-24 12:54:44,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:54:44,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059527444] [2024-10-24 12:54:44,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059527444] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:54:44,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678488190] [2024-10-24 12:54:44,147 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 12:54:44,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:54:44,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:54:44,149 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 12:54:44,151 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 12:54:44,579 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 12:54:44,579 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 12:54:44,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 2741 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-24 12:54:44,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:54:44,692 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-24 12:54:44,692 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:54:44,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678488190] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:54:44,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:54:44,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-10-24 12:54:44,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308348466] [2024-10-24 12:54:44,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:54:44,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 12:54:44,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:54:44,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 12:54:44,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-10-24 12:54:44,694 INFO L87 Difference]: Start difference. First operand 170 states and 241 transitions. Second operand has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 5 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-24 12:54:45,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:54:45,051 INFO L93 Difference]: Finished difference Result 296 states and 419 transitions. [2024-10-24 12:54:45,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 12:54:45,052 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 5 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) Word has length 120 [2024-10-24 12:54:45,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:54:45,054 INFO L225 Difference]: With dead ends: 296 [2024-10-24 12:54:45,054 INFO L226 Difference]: Without dead ends: 170 [2024-10-24 12:54:45,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-10-24 12:54:45,055 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 137 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:54:45,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1196 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 12:54:45,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-10-24 12:54:45,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2024-10-24 12:54:45,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 107 states have (on average 1.2990654205607477) internal successors, (139), 109 states have internal predecessors, (139), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 48 states have call predecessors, (50), 48 states have call successors, (50) [2024-10-24 12:54:45,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 238 transitions. [2024-10-24 12:54:45,065 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 238 transitions. Word has length 120 [2024-10-24 12:54:45,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:54:45,066 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 238 transitions. [2024-10-24 12:54:45,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 5 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-24 12:54:45,066 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 238 transitions. [2024-10-24 12:54:45,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 12:54:45,067 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:54:45,068 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] [2024-10-24 12:54:45,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-24 12:54:45,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:54:45,268 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:54:45,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:54:45,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1625657812, now seen corresponding path program 1 times [2024-10-24 12:54:45,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:54:45,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003786351] [2024-10-24 12:54:45,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:54:45,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:54:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 12:54:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 12:54:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:54:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 12:54:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 12:54:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:54:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 12:54:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:54:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 12:54:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 12:54:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 12:54:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 12:54:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 12:54:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 12:54:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 12:54:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 12:54:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 12:54:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:45,821 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-10-24 12:54:45,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:54:45,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003786351] [2024-10-24 12:54:45,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003786351] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:54:45,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:54:45,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 12:54:45,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927634950] [2024-10-24 12:54:45,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:54:45,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 12:54:45,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:54:45,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 12:54:45,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 12:54:45,823 INFO L87 Difference]: Start difference. First operand 170 states and 238 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-24 12:54:46,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:54:46,672 INFO L93 Difference]: Finished difference Result 321 states and 452 transitions. [2024-10-24 12:54:46,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 12:54:46,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 122 [2024-10-24 12:54:46,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:54:46,674 INFO L225 Difference]: With dead ends: 321 [2024-10-24 12:54:46,674 INFO L226 Difference]: Without dead ends: 185 [2024-10-24 12:54:46,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 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 12:54:46,677 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 146 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 12:54:46,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 534 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 12:54:46,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-10-24 12:54:46,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 173. [2024-10-24 12:54:46,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 109 states have (on average 1.311926605504587) internal successors, (143), 112 states have internal predecessors, (143), 49 states have call successors, (49), 12 states have call predecessors, (49), 14 states have return successors, (51), 48 states have call predecessors, (51), 48 states have call successors, (51) [2024-10-24 12:54:46,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 243 transitions. [2024-10-24 12:54:46,688 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 243 transitions. Word has length 122 [2024-10-24 12:54:46,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:54:46,688 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 243 transitions. [2024-10-24 12:54:46,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-24 12:54:46,688 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 243 transitions. [2024-10-24 12:54:46,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 12:54:46,689 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:54:46,690 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] [2024-10-24 12:54:46,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 12:54:46,690 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:54:46,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:54:46,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1223657021, now seen corresponding path program 1 times [2024-10-24 12:54:46,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:54:46,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201172112] [2024-10-24 12:54:46,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:54:46,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:54:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 12:54:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 12:54:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:54:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 12:54:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 12:54:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:54:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 12:54:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 12:54:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 12:54:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 12:54:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 12:54:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 12:54:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 12:54:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 12:54:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 12:54:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:54:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 12:54:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,280 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-10-24 12:54:47,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:54:47,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201172112] [2024-10-24 12:54:47,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201172112] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:54:47,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176334892] [2024-10-24 12:54:47,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:54:47,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:54:47,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:54:47,283 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 12:54:47,284 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 12:54:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:47,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 2877 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 12:54:47,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:54:47,784 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 104 proven. 1 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-10-24 12:54:47,784 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 12:54:47,874 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-10-24 12:54:47,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176334892] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 12:54:47,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 12:54:47,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 10 [2024-10-24 12:54:47,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352422597] [2024-10-24 12:54:47,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:54:47,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 12:54:47,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:54:47,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 12:54:47,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-24 12:54:47,877 INFO L87 Difference]: Start difference. First operand 173 states and 243 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-24 12:54:48,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:54:48,094 INFO L93 Difference]: Finished difference Result 318 states and 452 transitions. [2024-10-24 12:54:48,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 12:54:48,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 123 [2024-10-24 12:54:48,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:54:48,098 INFO L225 Difference]: With dead ends: 318 [2024-10-24 12:54:48,098 INFO L226 Difference]: Without dead ends: 178 [2024-10-24 12:54:48,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 277 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 12:54:48,099 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 4 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 12:54:48,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 635 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 12:54:48,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-10-24 12:54:48,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 176. [2024-10-24 12:54:48,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 112 states have (on average 1.3035714285714286) internal successors, (146), 114 states have internal predecessors, (146), 49 states have call successors, (49), 13 states have call predecessors, (49), 14 states have return successors, (51), 48 states have call predecessors, (51), 48 states have call successors, (51) [2024-10-24 12:54:48,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 246 transitions. [2024-10-24 12:54:48,110 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 246 transitions. Word has length 123 [2024-10-24 12:54:48,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:54:48,110 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 246 transitions. [2024-10-24 12:54:48,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-24 12:54:48,111 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 246 transitions. [2024-10-24 12:54:48,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-24 12:54:48,112 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:54:48,112 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] [2024-10-24 12:54:48,129 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 12:54:48,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:54:48,313 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:54:48,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:54:48,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1288327882, now seen corresponding path program 1 times [2024-10-24 12:54:48,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:54:48,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441079946] [2024-10-24 12:54:48,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:54:48,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:54:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 12:54:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 12:54:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 12:54:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 12:54:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 12:54:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 12:54:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 12:54:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 12:54:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 12:54:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:54:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 12:54:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 12:54:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:54:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:54:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:54:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 12:54:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:54:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:48,898 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-10-24 12:54:48,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:54:48,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441079946] [2024-10-24 12:54:48,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441079946] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:54:48,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146787145] [2024-10-24 12:54:48,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:54:48,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:54:48,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:54:48,900 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 12:54:48,901 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 12:54:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:49,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 2900 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-24 12:54:49,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:54:49,553 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-10-24 12:54:49,554 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:54:49,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146787145] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:54:49,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:54:49,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-10-24 12:54:49,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960217760] [2024-10-24 12:54:49,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:54:49,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 12:54:49,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:54:49,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 12:54:49,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-10-24 12:54:49,555 INFO L87 Difference]: Start difference. First operand 176 states and 246 transitions. Second operand has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-24 12:54:50,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:54:50,119 INFO L93 Difference]: Finished difference Result 339 states and 477 transitions. [2024-10-24 12:54:50,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 12:54:50,120 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) Word has length 124 [2024-10-24 12:54:50,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:54:50,122 INFO L225 Difference]: With dead ends: 339 [2024-10-24 12:54:50,122 INFO L226 Difference]: Without dead ends: 176 [2024-10-24 12:54:50,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-10-24 12:54:50,124 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 2 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 12:54:50,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1467 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 12:54:50,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-10-24 12:54:50,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-10-24 12:54:50,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 112 states have (on average 1.2946428571428572) internal successors, (145), 114 states have internal predecessors, (145), 49 states have call successors, (49), 13 states have call predecessors, (49), 14 states have return successors, (51), 48 states have call predecessors, (51), 48 states have call successors, (51) [2024-10-24 12:54:50,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 245 transitions. [2024-10-24 12:54:50,140 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 245 transitions. Word has length 124 [2024-10-24 12:54:50,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:54:50,140 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 245 transitions. [2024-10-24 12:54:50,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-24 12:54:50,141 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 245 transitions. [2024-10-24 12:54:50,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 12:54:50,142 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:54:50,143 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-10-24 12:54:50,164 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 12:54:50,343 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,SelfDestructingSolverStorable8 [2024-10-24 12:54:50,344 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:54:50,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:54:50,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1471976428, now seen corresponding path program 1 times [2024-10-24 12:54:50,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:54:50,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275905552] [2024-10-24 12:54:50,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:54:50,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:54:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:54:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:54:50,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:54:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:54:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:54:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:54:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:54:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 12:54:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 12:54:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 12:54:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 12:54:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 12:54:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 12:54:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:54:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 12:54:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 12:54:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 12:54:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 12:54:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 12:54:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:50,959 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 12:54:50,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:54:50,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275905552] [2024-10-24 12:54:50,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275905552] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:54:50,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478880677] [2024-10-24 12:54:50,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:54:50,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:54:50,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:54:50,961 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 12:54:50,962 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 12:54:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:54:51,436 INFO L255 TraceCheckSpWp]: Trace formula consists of 2934 conjuncts, 133 conjuncts are in the unsatisfiable core [2024-10-24 12:54:51,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:54:51,459 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 12:54:51,481 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 12:54:51,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 12:54:51,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2024-10-24 12:54:51,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-10-24 12:54:52,665 INFO L349 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2024-10-24 12:54:52,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2024-10-24 12:54:52,715 INFO L349 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2024-10-24 12:54:52,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 27 treesize of output 33 [2024-10-24 12:54:52,929 INFO L349 Elim1Store]: treesize reduction 148, result has 34.5 percent of original size [2024-10-24 12:54:52,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 70 treesize of output 125 [2024-10-24 12:54:56,601 INFO L349 Elim1Store]: treesize reduction 580, result has 23.7 percent of original size [2024-10-24 12:54:56,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 77 case distinctions, treesize of input 114 treesize of output 259 [2024-10-24 12:55:02,540 INFO L349 Elim1Store]: treesize reduction 4, result has 99.8 percent of original size [2024-10-24 12:55:02,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 0 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 231 case distinctions, treesize of input 189 treesize of output 1979