./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_priority_queue_top_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness_negated.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cddb8be3317e9d6bf2e67633b62d21b872e62a4205c204f682a628045c0c7f11 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 14:48:56,220 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 14:48:56,287 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-11 14:48:56,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 14:48:56,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 14:48:56,332 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 14:48:56,333 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 14:48:56,333 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 14:48:56,334 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 14:48:56,336 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 14:48:56,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 14:48:56,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 14:48:56,337 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 14:48:56,338 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 14:48:56,338 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 14:48:56,338 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 14:48:56,339 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 14:48:56,339 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 14:48:56,339 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 14:48:56,339 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 14:48:56,340 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 14:48:56,343 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 14:48:56,344 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 14:48:56,344 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 14:48:56,344 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 14:48:56,344 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 14:48:56,344 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 14:48:56,345 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 14:48:56,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 14:48:56,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:48:56,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 14:48:56,346 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 14:48:56,346 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 14:48:56,346 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 14:48:56,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 14:48:56,346 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 14:48:56,347 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 14:48:56,347 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 14:48:56,350 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 14:48:56,351 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cddb8be3317e9d6bf2e67633b62d21b872e62a4205c204f682a628045c0c7f11 [2024-10-11 14:48:56,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 14:48:56,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 14:48:56,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 14:48:56,707 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 14:48:56,708 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 14:48:56,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness_negated.i [2024-10-11 14:48:58,094 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 14:48:58,605 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 14:48:58,608 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness_negated.i [2024-10-11 14:48:58,640 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a868eef16/13ade53dec304190805c90e9a0d51ccd/FLAG5a7f0d936 [2024-10-11 14:48:58,696 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a868eef16/13ade53dec304190805c90e9a0d51ccd [2024-10-11 14:48:58,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 14:48:58,701 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 14:48:58,702 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 14:48:58,702 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 14:48:58,708 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 14:48:58,709 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:48:58" (1/1) ... [2024-10-11 14:48:58,710 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b0bb21b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:48:58, skipping insertion in model container [2024-10-11 14:48:58,710 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:48:58" (1/1) ... [2024-10-11 14:48:58,801 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 14:48:59,120 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_priority_queue_top_harness_negated.i[4496,4509] [2024-10-11 14:48:59,129 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_priority_queue_top_harness_negated.i[4556,4569] [2024-10-11 14:49:00,192 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,193 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,193 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,197 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,198 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,210 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,212 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,216 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,217 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,661 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,662 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:49:00,772 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 14:49:00,787 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_priority_queue_top_harness_negated.i[4496,4509] [2024-10-11 14:49:00,792 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_priority_queue_top_harness_negated.i[4556,4569] [2024-10-11 14:49:00,869 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,869 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,870 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,870 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,870 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,882 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,883 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,884 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:00,886 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:01,011 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:01,011 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:49:01,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7671-7682] [2024-10-11 14:49:01,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:49:01,310 INFO L204 MainTranslator]: Completed translation [2024-10-11 14:49:01,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:49:01 WrapperNode [2024-10-11 14:49:01,311 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 14:49:01,312 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 14:49:01,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 14:49:01,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 14:49:01,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:49:01" (1/1) ... [2024-10-11 14:49:01,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:49:01" (1/1) ... [2024-10-11 14:49:01,484 INFO L138 Inliner]: procedures = 678, calls = 1542, calls flagged for inlining = 54, calls inlined = 10, statements flattened = 723 [2024-10-11 14:49:01,489 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 14:49:01,489 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 14:49:01,489 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 14:49:01,489 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 14:49:01,505 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:49:01" (1/1) ... [2024-10-11 14:49:01,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:49:01" (1/1) ... [2024-10-11 14:49:01,518 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:49:01" (1/1) ... [2024-10-11 14:49:01,607 INFO L175 MemorySlicer]: Split 336 memory accesses to 7 slices as follows [236, 2, 2, 6, 80, 3, 7]. 70 percent of accesses are in the largest equivalence class. The 266 initializations are split as follows [236, 2, 1, 0, 21, 1, 5]. The 8 writes are split as follows [0, 0, 1, 2, 4, 1, 0]. [2024-10-11 14:49:01,611 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:49:01" (1/1) ... [2024-10-11 14:49:01,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:49:01" (1/1) ... [2024-10-11 14:49:01,648 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:49:01" (1/1) ... [2024-10-11 14:49:01,656 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:49:01" (1/1) ... [2024-10-11 14:49:01,671 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:49:01" (1/1) ... [2024-10-11 14:49:01,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:49:01" (1/1) ... [2024-10-11 14:49:01,701 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 14:49:01,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 14:49:01,706 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 14:49:01,706 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 14:49:01,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:49:01" (1/1) ... [2024-10-11 14:49:01,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:49:01,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:49:01,743 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 14:49:01,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 14:49:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-10-11 14:49:01,801 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-10-11 14:49:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 14:49:01,803 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-10-11 14:49:01,804 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-10-11 14:49:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-10-11 14:49:01,804 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-10-11 14:49:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-11 14:49:01,805 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-11 14:49:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 14:49:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 14:49:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 14:49:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 14:49:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-11 14:49:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-11 14:49:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-11 14:49:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-11 14:49:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-11 14:49:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 14:49:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 14:49:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 14:49:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 14:49:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-10-11 14:49:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-10-11 14:49:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 14:49:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 14:49:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 14:49:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-11 14:49:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-11 14:49:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-11 14:49:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-11 14:49:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 14:49:01,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 14:49:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-11 14:49:01,808 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-11 14:49:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-10-11 14:49:01,809 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-10-11 14:49:01,809 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-10-11 14:49:01,809 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-10-11 14:49:01,809 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-10-11 14:49:01,810 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-10-11 14:49:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-10-11 14:49:01,810 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-10-11 14:49:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-10-11 14:49:01,810 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-10-11 14:49:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 14:49:01,811 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 14:49:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 14:49:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 14:49:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 14:49:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-11 14:49:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-11 14:49:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-11 14:49:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-11 14:49:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-11 14:49:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-11 14:49:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-11 14:49:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-11 14:49:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-11 14:49:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-11 14:49:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-11 14:49:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-11 14:49:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-10-11 14:49:01,813 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-10-11 14:49:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-10-11 14:49:01,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-10-11 14:49:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 14:49:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 14:49:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 14:49:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 14:49:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-11 14:49:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-11 14:49:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-11 14:49:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2024-10-11 14:49:01,815 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2024-10-11 14:49:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-10-11 14:49:01,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-10-11 14:49:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 14:49:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 14:49:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 14:49:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 14:49:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 14:49:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-11 14:49:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-11 14:49:02,139 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 14:49:02,142 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 14:49:03,509 INFO L? ?]: Removed 159 outVars from TransFormulas that were not future-live. [2024-10-11 14:49:03,510 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 14:49:03,643 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 14:49:03,643 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-11 14:49:03,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:49:03 BoogieIcfgContainer [2024-10-11 14:49:03,644 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 14:49:03,647 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 14:49:03,647 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 14:49:03,650 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 14:49:03,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:48:58" (1/3) ... [2024-10-11 14:49:03,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb9bcee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:49:03, skipping insertion in model container [2024-10-11 14:49:03,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:49:01" (2/3) ... [2024-10-11 14:49:03,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb9bcee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:49:03, skipping insertion in model container [2024-10-11 14:49:03,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:49:03" (3/3) ... [2024-10-11 14:49:03,653 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_top_harness_negated.i [2024-10-11 14:49:03,668 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 14:49:03,668 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 14:49:03,742 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:49:03,752 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;@7a32a5f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:49:03,753 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 14:49:03,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 191 states, 115 states have (on average 1.2521739130434784) internal successors, (144), 115 states have internal predecessors, (144), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-10-11 14:49:03,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-11 14:49:03,777 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:03,779 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:49:03,779 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:03,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:03,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1194611214, now seen corresponding path program 1 times [2024-10-11 14:49:03,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:03,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441274327] [2024-10-11 14:49:03,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:03,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-11 14:49:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 14:49:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 14:49:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 14:49:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 14:49:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 14:49:04,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 14:49:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-11 14:49:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,935 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-10-11 14:49:04,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:04,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441274327] [2024-10-11 14:49:04,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441274327] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:04,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:49:04,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 14:49:04,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886544204] [2024-10-11 14:49:04,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:04,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 14:49:04,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:04,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 14:49:04,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 14:49:04,974 INFO L87 Difference]: Start difference. First operand has 191 states, 115 states have (on average 1.2521739130434784) internal successors, (144), 115 states have internal predecessors, (144), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 14:49:06,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:06,551 INFO L93 Difference]: Finished difference Result 393 states and 578 transitions. [2024-10-11 14:49:06,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 14:49:06,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 134 [2024-10-11 14:49:06,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:06,565 INFO L225 Difference]: With dead ends: 393 [2024-10-11 14:49:06,567 INFO L226 Difference]: Without dead ends: 220 [2024-10-11 14:49:06,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-10-11 14:49:06,578 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 317 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:06,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 154 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-11 14:49:06,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-10-11 14:49:06,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 189. [2024-10-11 14:49:06,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 113 states have (on average 1.2212389380530972) internal successors, (138), 114 states have internal predecessors, (138), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-11 14:49:06,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 251 transitions. [2024-10-11 14:49:06,665 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 251 transitions. Word has length 134 [2024-10-11 14:49:06,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:06,666 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 251 transitions. [2024-10-11 14:49:06,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 14:49:06,666 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 251 transitions. [2024-10-11 14:49:06,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-11 14:49:06,674 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:06,674 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:49:06,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 14:49:06,675 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:06,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:06,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1271581244, now seen corresponding path program 1 times [2024-10-11 14:49:06,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:06,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258874912] [2024-10-11 14:49:06,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:06,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-11 14:49:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 14:49:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 14:49:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 14:49:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 14:49:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 14:49:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 14:49:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-11 14:49:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:07,572 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-10-11 14:49:07,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:07,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258874912] [2024-10-11 14:49:07,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258874912] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:07,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:49:07,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 14:49:07,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572410577] [2024-10-11 14:49:07,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:07,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 14:49:07,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:07,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 14:49:07,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 14:49:07,576 INFO L87 Difference]: Start difference. First operand 189 states and 251 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-10-11 14:49:09,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:09,149 INFO L93 Difference]: Finished difference Result 366 states and 498 transitions. [2024-10-11 14:49:09,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 14:49:09,150 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 134 [2024-10-11 14:49:09,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:09,153 INFO L225 Difference]: With dead ends: 366 [2024-10-11 14:49:09,153 INFO L226 Difference]: Without dead ends: 220 [2024-10-11 14:49:09,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-10-11 14:49:09,155 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 425 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:09,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 225 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 14:49:09,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-10-11 14:49:09,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 189. [2024-10-11 14:49:09,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 113 states have (on average 1.2123893805309736) internal successors, (137), 114 states have internal predecessors, (137), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-11 14:49:09,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 250 transitions. [2024-10-11 14:49:09,227 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 250 transitions. Word has length 134 [2024-10-11 14:49:09,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:09,228 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 250 transitions. [2024-10-11 14:49:09,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-10-11 14:49:09,228 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 250 transitions. [2024-10-11 14:49:09,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-11 14:49:09,231 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:09,231 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:49:09,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 14:49:09,232 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:09,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:09,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1877657214, now seen corresponding path program 1 times [2024-10-11 14:49:09,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:09,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024115867] [2024-10-11 14:49:09,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:09,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:09,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 14:49:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:10,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 14:49:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:10,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-11 14:49:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:10,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 14:49:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:10,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:10,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 14:49:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:10,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 14:49:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:10,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 14:49:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:10,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 14:49:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:10,087 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2024-10-11 14:49:10,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:10,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024115867] [2024-10-11 14:49:10,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024115867] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:49:10,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927910992] [2024-10-11 14:49:10,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:10,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:10,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:49:10,092 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:49:10,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 14:49:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:10,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 2429 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 14:49:10,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:49:10,806 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-10-11 14:49:10,807 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:49:10,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927910992] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:10,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:49:10,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-10-11 14:49:10,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676853383] [2024-10-11 14:49:10,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:10,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 14:49:10,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:10,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 14:49:10,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-10-11 14:49:10,810 INFO L87 Difference]: Start difference. First operand 189 states and 250 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-11 14:49:11,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:11,309 INFO L93 Difference]: Finished difference Result 354 states and 476 transitions. [2024-10-11 14:49:11,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 14:49:11,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 142 [2024-10-11 14:49:11,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:11,338 INFO L225 Difference]: With dead ends: 354 [2024-10-11 14:49:11,339 INFO L226 Difference]: Without dead ends: 191 [2024-10-11 14:49:11,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-10-11 14:49:11,347 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 46 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:11,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1274 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 14:49:11,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-10-11 14:49:11,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2024-10-11 14:49:11,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 114 states have (on average 1.2105263157894737) internal successors, (138), 116 states have internal predecessors, (138), 57 states have call successors, (57), 18 states have call predecessors, (57), 19 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2024-10-11 14:49:11,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 257 transitions. [2024-10-11 14:49:11,396 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 257 transitions. Word has length 142 [2024-10-11 14:49:11,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:11,396 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 257 transitions. [2024-10-11 14:49:11,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-11 14:49:11,397 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 257 transitions. [2024-10-11 14:49:11,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-11 14:49:11,400 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:11,400 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:49:11,419 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 14:49:11,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:11,602 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:11,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:11,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1785894814, now seen corresponding path program 1 times [2024-10-11 14:49:11,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:11,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585678492] [2024-10-11 14:49:11,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:11,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 14:49:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 14:49:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 14:49:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 14:49:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 14:49:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 14:49:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-11 14:49:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-11 14:49:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:12,610 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-10-11 14:49:12,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:12,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585678492] [2024-10-11 14:49:12,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585678492] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:12,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:49:12,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 14:49:12,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886211426] [2024-10-11 14:49:12,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:12,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 14:49:12,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:12,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 14:49:12,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 14:49:12,613 INFO L87 Difference]: Start difference. First operand 191 states and 257 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2024-10-11 14:49:14,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:14,629 INFO L93 Difference]: Finished difference Result 350 states and 474 transitions. [2024-10-11 14:49:14,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 14:49:14,629 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 155 [2024-10-11 14:49:14,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:14,632 INFO L225 Difference]: With dead ends: 350 [2024-10-11 14:49:14,632 INFO L226 Difference]: Without dead ends: 201 [2024-10-11 14:49:14,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-10-11 14:49:14,634 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 282 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:14,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 299 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-11 14:49:14,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-10-11 14:49:14,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 191. [2024-10-11 14:49:14,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 114 states have (on average 1.2017543859649122) internal successors, (137), 116 states have internal predecessors, (137), 57 states have call successors, (57), 18 states have call predecessors, (57), 19 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2024-10-11 14:49:14,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 256 transitions. [2024-10-11 14:49:14,663 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 256 transitions. Word has length 155 [2024-10-11 14:49:14,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:14,663 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 256 transitions. [2024-10-11 14:49:14,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2024-10-11 14:49:14,664 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 256 transitions. [2024-10-11 14:49:14,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-11 14:49:14,665 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:14,666 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:49:14,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 14:49:14,666 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:14,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:14,666 INFO L85 PathProgramCache]: Analyzing trace with hash -836877653, now seen corresponding path program 1 times [2024-10-11 14:49:14,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:14,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996465340] [2024-10-11 14:49:14,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:14,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 14:49:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 14:49:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-11 14:49:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 14:49:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 14:49:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-11 14:49:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-11 14:49:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-11 14:49:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:15,776 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-11 14:49:15,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:15,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996465340] [2024-10-11 14:49:15,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996465340] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:49:15,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635810769] [2024-10-11 14:49:15,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:15,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:15,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:49:15,779 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:49:15,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 14:49:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:16,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 2636 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 14:49:16,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:49:16,550 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-11 14:49:16,550 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:49:16,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635810769] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:16,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:49:16,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2024-10-11 14:49:16,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590699999] [2024-10-11 14:49:16,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:16,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 14:49:16,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:16,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 14:49:16,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-10-11 14:49:16,553 INFO L87 Difference]: Start difference. First operand 191 states and 256 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2024-10-11 14:49:17,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:17,019 INFO L93 Difference]: Finished difference Result 353 states and 474 transitions. [2024-10-11 14:49:17,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 14:49:17,019 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 171 [2024-10-11 14:49:17,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:17,021 INFO L225 Difference]: With dead ends: 353 [2024-10-11 14:49:17,021 INFO L226 Difference]: Without dead ends: 191 [2024-10-11 14:49:17,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-10-11 14:49:17,023 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 68 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:17,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1335 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 14:49:17,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-10-11 14:49:17,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2024-10-11 14:49:17,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 114 states have (on average 1.2017543859649122) internal successors, (137), 116 states have internal predecessors, (137), 57 states have call successors, (57), 18 states have call predecessors, (57), 19 states have return successors, (61), 56 states have call predecessors, (61), 56 states have call successors, (61) [2024-10-11 14:49:17,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 255 transitions. [2024-10-11 14:49:17,048 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 255 transitions. Word has length 171 [2024-10-11 14:49:17,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:17,049 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 255 transitions. [2024-10-11 14:49:17,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2024-10-11 14:49:17,049 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 255 transitions. [2024-10-11 14:49:17,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-10-11 14:49:17,052 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:17,052 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:49:17,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 14:49:17,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:17,253 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:17,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:17,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1006986571, now seen corresponding path program 2 times [2024-10-11 14:49:17,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:17,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408659510] [2024-10-11 14:49:17,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:17,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:18,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 14:49:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 14:49:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 14:49:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 14:49:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:18,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 14:49:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 14:49:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-11 14:49:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 14:49:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,228 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-10-11 14:49:18,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:18,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408659510] [2024-10-11 14:49:18,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408659510] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:49:18,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457068319] [2024-10-11 14:49:18,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 14:49:18,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:18,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:49:18,231 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:49:18,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 14:49:18,720 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 14:49:18,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 14:49:18,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 1798 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 14:49:18,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:49:18,803 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-10-11 14:49:18,804 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:49:18,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457068319] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:18,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:49:18,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2024-10-11 14:49:18,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261179687] [2024-10-11 14:49:18,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:18,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 14:49:18,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:18,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 14:49:18,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-10-11 14:49:18,806 INFO L87 Difference]: Start difference. First operand 191 states and 255 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 14:49:19,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:19,020 INFO L93 Difference]: Finished difference Result 199 states and 263 transitions. [2024-10-11 14:49:19,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 14:49:19,021 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 184 [2024-10-11 14:49:19,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:19,023 INFO L225 Difference]: With dead ends: 199 [2024-10-11 14:49:19,023 INFO L226 Difference]: Without dead ends: 197 [2024-10-11 14:49:19,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-10-11 14:49:19,026 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 3 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:19,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1154 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 14:49:19,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-10-11 14:49:19,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 196. [2024-10-11 14:49:19,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 117 states have (on average 1.1965811965811965) internal successors, (140), 119 states have internal predecessors, (140), 58 states have call successors, (58), 19 states have call predecessors, (58), 20 states have return successors, (62), 57 states have call predecessors, (62), 57 states have call successors, (62) [2024-10-11 14:49:19,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 260 transitions. [2024-10-11 14:49:19,052 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 260 transitions. Word has length 184 [2024-10-11 14:49:19,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:19,052 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 260 transitions. [2024-10-11 14:49:19,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-11 14:49:19,053 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 260 transitions. [2024-10-11 14:49:19,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-10-11 14:49:19,055 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:19,056 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:49:19,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 14:49:19,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:19,256 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:19,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:19,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1095797311, now seen corresponding path program 3 times [2024-10-11 14:49:19,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:19,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147035683] [2024-10-11 14:49:19,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:19,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:19,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:19,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:19,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:19,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:19,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:19,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:19,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:19,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:19,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:19,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:19,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:19,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:19,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:19,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:19,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:19,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:19,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:20,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:20,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:20,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:20,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:20,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:20,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:20,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 14:49:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:20,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 14:49:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:20,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 14:49:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:20,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 14:49:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:20,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:20,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 14:49:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:20,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 14:49:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:20,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-11 14:49:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:20,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 14:49:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:20,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:20,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:20,244 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2024-10-11 14:49:20,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:20,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147035683] [2024-10-11 14:49:20,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147035683] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:49:20,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703704212] [2024-10-11 14:49:20,244 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 14:49:20,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:20,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:49:20,246 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:49:20,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 14:49:21,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-11 14:49:21,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 14:49:21,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 2000 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-11 14:49:21,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:49:21,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-10-11 14:49:21,234 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-10-11 14:49:21,234 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:49:21,631 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2024-10-11 14:49:21,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703704212] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 14:49:21,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 14:49:21,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 7] total 18 [2024-10-11 14:49:21,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655165721] [2024-10-11 14:49:21,632 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 14:49:21,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 14:49:21,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:21,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 14:49:21,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-10-11 14:49:21,634 INFO L87 Difference]: Start difference. First operand 196 states and 260 transitions. Second operand has 18 states, 17 states have (on average 6.529411764705882) internal successors, (111), 13 states have internal predecessors, (111), 7 states have call successors, (55), 7 states have call predecessors, (55), 4 states have return successors, (48), 6 states have call predecessors, (48), 6 states have call successors, (48) [2024-10-11 14:49:24,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:24,380 INFO L93 Difference]: Finished difference Result 352 states and 475 transitions. [2024-10-11 14:49:24,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 14:49:24,381 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.529411764705882) internal successors, (111), 13 states have internal predecessors, (111), 7 states have call successors, (55), 7 states have call predecessors, (55), 4 states have return successors, (48), 6 states have call predecessors, (48), 6 states have call successors, (48) Word has length 197 [2024-10-11 14:49:24,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:24,383 INFO L225 Difference]: With dead ends: 352 [2024-10-11 14:49:24,383 INFO L226 Difference]: Without dead ends: 224 [2024-10-11 14:49:24,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=206, Invalid=984, Unknown=0, NotChecked=0, Total=1190 [2024-10-11 14:49:24,385 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 386 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 2670 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 3013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 2670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:24,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 555 Invalid, 3013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [343 Valid, 2670 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-11 14:49:24,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-10-11 14:49:24,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 214. [2024-10-11 14:49:24,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 127 states have (on average 1.188976377952756) internal successors, (151), 127 states have internal predecessors, (151), 65 states have call successors, (65), 22 states have call predecessors, (65), 21 states have return successors, (69), 64 states have call predecessors, (69), 64 states have call successors, (69) [2024-10-11 14:49:24,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 285 transitions. [2024-10-11 14:49:24,416 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 285 transitions. Word has length 197 [2024-10-11 14:49:24,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:24,418 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 285 transitions. [2024-10-11 14:49:24,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.529411764705882) internal successors, (111), 13 states have internal predecessors, (111), 7 states have call successors, (55), 7 states have call predecessors, (55), 4 states have return successors, (48), 6 states have call predecessors, (48), 6 states have call successors, (48) [2024-10-11 14:49:24,418 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 285 transitions. [2024-10-11 14:49:24,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-11 14:49:24,420 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:24,421 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:49:24,435 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 14:49:24,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-11 14:49:24,621 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:24,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:24,622 INFO L85 PathProgramCache]: Analyzing trace with hash 239120901, now seen corresponding path program 1 times [2024-10-11 14:49:24,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:24,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477913018] [2024-10-11 14:49:24,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:24,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:26,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:26,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:26,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:26,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:26,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:26,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:26,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:26,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:26,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:26,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:26,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:26,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:26,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:26,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:26,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:26,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 14:49:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 14:49:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 14:49:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 14:49:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 14:49:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 14:49:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:27,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 14:49:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-11 14:49:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,503 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2024-10-11 14:49:27,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:27,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477913018] [2024-10-11 14:49:27,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477913018] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:27,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:49:27,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 14:49:27,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515563036] [2024-10-11 14:49:27,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:27,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 14:49:27,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:27,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 14:49:27,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-11 14:49:27,506 INFO L87 Difference]: Start difference. First operand 214 states and 285 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-11 14:49:29,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:29,644 INFO L93 Difference]: Finished difference Result 401 states and 536 transitions. [2024-10-11 14:49:29,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 14:49:29,645 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 210 [2024-10-11 14:49:29,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:29,647 INFO L225 Difference]: With dead ends: 401 [2024-10-11 14:49:29,647 INFO L226 Difference]: Without dead ends: 232 [2024-10-11 14:49:29,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2024-10-11 14:49:29,649 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 266 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:29,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 373 Invalid, 1550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-11 14:49:29,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-10-11 14:49:29,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 216. [2024-10-11 14:49:29,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 129 states have (on average 1.186046511627907) internal successors, (153), 129 states have internal predecessors, (153), 65 states have call successors, (65), 22 states have call predecessors, (65), 21 states have return successors, (69), 64 states have call predecessors, (69), 64 states have call successors, (69) [2024-10-11 14:49:29,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 287 transitions. [2024-10-11 14:49:29,674 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 287 transitions. Word has length 210 [2024-10-11 14:49:29,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:29,674 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 287 transitions. [2024-10-11 14:49:29,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-11 14:49:29,675 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 287 transitions. [2024-10-11 14:49:29,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-11 14:49:29,676 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:29,677 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:49:29,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 14:49:29,677 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:29,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:29,677 INFO L85 PathProgramCache]: Analyzing trace with hash 210620611, now seen corresponding path program 1 times [2024-10-11 14:49:29,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:29,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241242206] [2024-10-11 14:49:29,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:29,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:30,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:30,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 14:49:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 14:49:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 14:49:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 14:49:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 14:49:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 14:49:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 14:49:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-11 14:49:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:30,493 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2024-10-11 14:49:30,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:30,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241242206] [2024-10-11 14:49:30,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241242206] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:30,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:49:30,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 14:49:30,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142865223] [2024-10-11 14:49:30,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:30,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 14:49:30,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:30,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 14:49:30,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 14:49:30,497 INFO L87 Difference]: Start difference. First operand 216 states and 287 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-11 14:49:31,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:31,736 INFO L93 Difference]: Finished difference Result 397 states and 529 transitions. [2024-10-11 14:49:31,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 14:49:31,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 210 [2024-10-11 14:49:31,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:31,739 INFO L225 Difference]: With dead ends: 397 [2024-10-11 14:49:31,739 INFO L226 Difference]: Without dead ends: 226 [2024-10-11 14:49:31,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-11 14:49:31,741 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 312 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:31,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 250 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 14:49:31,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-10-11 14:49:31,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 218. [2024-10-11 14:49:31,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 131 states have (on average 1.183206106870229) internal successors, (155), 131 states have internal predecessors, (155), 65 states have call successors, (65), 22 states have call predecessors, (65), 21 states have return successors, (69), 64 states have call predecessors, (69), 64 states have call successors, (69) [2024-10-11 14:49:31,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 289 transitions. [2024-10-11 14:49:31,769 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 289 transitions. Word has length 210 [2024-10-11 14:49:31,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:31,770 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 289 transitions. [2024-10-11 14:49:31,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-11 14:49:31,770 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 289 transitions. [2024-10-11 14:49:31,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-11 14:49:31,772 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:31,772 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:49:31,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 14:49:31,772 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:31,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:31,773 INFO L85 PathProgramCache]: Analyzing trace with hash 2087683841, now seen corresponding path program 1 times [2024-10-11 14:49:31,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:31,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959139980] [2024-10-11 14:49:31,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:31,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:37,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:37,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:37,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:37,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:37,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:37,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:37,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:37,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:37,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:37,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:37,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:37,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:37,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:37,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:37,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:37,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:37,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:38,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:38,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:38,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:38,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:38,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:39,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:39,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:39,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 14:49:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:39,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 14:49:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:39,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 14:49:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:39,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 14:49:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:39,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:39,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 14:49:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:39,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 14:49:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:39,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:39,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:39,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 14:49:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:39,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-11 14:49:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:39,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:39,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:39,260 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-10-11 14:49:39,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:39,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959139980] [2024-10-11 14:49:39,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959139980] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:49:39,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158824057] [2024-10-11 14:49:39,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:39,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:39,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:49:39,263 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:49:39,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 14:49:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:39,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 3033 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-10-11 14:49:39,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:49:40,004 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 [2024-10-11 14:49:40,007 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 [2024-10-11 14:49:40,522 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-10-11 14:49:40,522 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:49:40,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158824057] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:40,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:49:40,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [23] total 32 [2024-10-11 14:49:40,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113355222] [2024-10-11 14:49:40,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:40,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 14:49:40,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:40,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 14:49:40,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=906, Unknown=0, NotChecked=0, Total=992 [2024-10-11 14:49:40,526 INFO L87 Difference]: Start difference. First operand 218 states and 289 transitions. Second operand has 13 states, 13 states have (on average 7.0) internal successors, (91), 13 states have internal predecessors, (91), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2024-10-11 14:49:42,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:42,202 INFO L93 Difference]: Finished difference Result 414 states and 557 transitions. [2024-10-11 14:49:42,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 14:49:42,203 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.0) internal successors, (91), 13 states have internal predecessors, (91), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) Word has length 210 [2024-10-11 14:49:42,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:42,206 INFO L225 Difference]: With dead ends: 414 [2024-10-11 14:49:42,209 INFO L226 Difference]: Without dead ends: 241 [2024-10-11 14:49:42,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 267 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=126, Invalid=1280, Unknown=0, NotChecked=0, Total=1406 [2024-10-11 14:49:42,211 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 44 mSDsluCounter, 2164 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 2378 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:42,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 2378 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 14:49:42,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-10-11 14:49:42,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 237. [2024-10-11 14:49:42,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 149 states have (on average 1.1946308724832215) internal successors, (178), 149 states have internal predecessors, (178), 65 states have call successors, (65), 22 states have call predecessors, (65), 22 states have return successors, (78), 65 states have call predecessors, (78), 64 states have call successors, (78) [2024-10-11 14:49:42,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 321 transitions. [2024-10-11 14:49:42,246 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 321 transitions. Word has length 210 [2024-10-11 14:49:42,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:42,246 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 321 transitions. [2024-10-11 14:49:42,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.0) internal successors, (91), 13 states have internal predecessors, (91), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2024-10-11 14:49:42,247 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 321 transitions. [2024-10-11 14:49:42,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-11 14:49:42,248 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:42,248 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:49:42,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 14:49:42,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-11 14:49:42,449 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:42,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:42,449 INFO L85 PathProgramCache]: Analyzing trace with hash 54289795, now seen corresponding path program 1 times [2024-10-11 14:49:42,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:42,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839014138] [2024-10-11 14:49:42,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:42,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:42,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:42,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 14:49:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 14:49:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 14:49:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 14:49:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:43,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 14:49:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 14:49:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 14:49:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-11 14:49:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,196 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-10-11 14:49:43,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:43,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839014138] [2024-10-11 14:49:43,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839014138] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:49:43,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34204519] [2024-10-11 14:49:43,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:43,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:43,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:49:43,198 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:49:43,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 14:49:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 3028 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 14:49:43,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:49:43,915 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-11 14:49:43,916 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:49:43,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34204519] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:43,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:49:43,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 8 [2024-10-11 14:49:43,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360463315] [2024-10-11 14:49:43,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:43,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:49:43,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:43,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:49:43,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 14:49:43,920 INFO L87 Difference]: Start difference. First operand 237 states and 321 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-10-11 14:49:44,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:44,085 INFO L93 Difference]: Finished difference Result 429 states and 594 transitions. [2024-10-11 14:49:44,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:49:44,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 210 [2024-10-11 14:49:44,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:44,087 INFO L225 Difference]: With dead ends: 429 [2024-10-11 14:49:44,088 INFO L226 Difference]: Without dead ends: 237 [2024-10-11 14:49:44,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 14:49:44,089 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 0 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:44,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 698 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 14:49:44,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-10-11 14:49:44,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2024-10-11 14:49:44,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 149 states have (on average 1.1879194630872483) internal successors, (177), 149 states have internal predecessors, (177), 65 states have call successors, (65), 22 states have call predecessors, (65), 22 states have return successors, (78), 65 states have call predecessors, (78), 64 states have call successors, (78) [2024-10-11 14:49:44,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 320 transitions. [2024-10-11 14:49:44,112 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 320 transitions. Word has length 210 [2024-10-11 14:49:44,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:44,112 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 320 transitions. [2024-10-11 14:49:44,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-10-11 14:49:44,113 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 320 transitions. [2024-10-11 14:49:44,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-10-11 14:49:44,114 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:44,114 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:49:44,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-11 14:49:44,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 14:49:44,315 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:44,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:44,316 INFO L85 PathProgramCache]: Analyzing trace with hash 831616231, now seen corresponding path program 1 times [2024-10-11 14:49:44,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:44,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113208087] [2024-10-11 14:49:44,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:44,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:48,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:48,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:48,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:48,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:48,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:48,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:48,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:48,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:48,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:48,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:48,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:48,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:48,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:48,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:48,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:49,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:49,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:49,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:49,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:49,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:49,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:49,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:49,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:50,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:50,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:50,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 14:49:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:50,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 14:49:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:50,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 14:49:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:50,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 14:49:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:50,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:50,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 14:49:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:50,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 14:49:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:50,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:50,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:50,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:50,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-11 14:49:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:50,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-11 14:49:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:50,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:50,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:50,516 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 23 proven. 30 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-11 14:49:50,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:50,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113208087] [2024-10-11 14:49:50,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113208087] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:49:50,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70974024] [2024-10-11 14:49:50,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:50,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:50,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:49:50,518 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:49:50,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 14:49:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:51,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 3038 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-11 14:49:51,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:49:51,554 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 [2024-10-11 14:49:51,868 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-10-11 14:49:51,868 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:49:51,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70974024] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:51,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:49:51,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [25] total 33 [2024-10-11 14:49:51,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677321340] [2024-10-11 14:49:51,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:51,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 14:49:51,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:51,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 14:49:51,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=975, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 14:49:51,871 INFO L87 Difference]: Start difference. First operand 237 states and 320 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2024-10-11 14:49:52,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:52,751 INFO L93 Difference]: Finished difference Result 449 states and 615 transitions. [2024-10-11 14:49:52,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 14:49:52,752 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) Word has length 212 [2024-10-11 14:49:52,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:52,754 INFO L225 Difference]: With dead ends: 449 [2024-10-11 14:49:52,754 INFO L226 Difference]: Without dead ends: 255 [2024-10-11 14:49:52,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=104, Invalid=1228, Unknown=0, NotChecked=0, Total=1332 [2024-10-11 14:49:52,756 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 38 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:52,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 1707 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 14:49:52,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-10-11 14:49:52,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 247. [2024-10-11 14:49:52,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 158 states have (on average 1.1835443037974684) internal successors, (187), 158 states have internal predecessors, (187), 65 states have call successors, (65), 22 states have call predecessors, (65), 23 states have return successors, (87), 66 states have call predecessors, (87), 64 states have call successors, (87) [2024-10-11 14:49:52,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 339 transitions. [2024-10-11 14:49:52,779 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 339 transitions. Word has length 212 [2024-10-11 14:49:52,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:52,779 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 339 transitions. [2024-10-11 14:49:52,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2024-10-11 14:49:52,780 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 339 transitions. [2024-10-11 14:49:52,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-10-11 14:49:52,781 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:52,781 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:49:52,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 14:49:52,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:52,982 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:52,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:52,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1659045673, now seen corresponding path program 1 times [2024-10-11 14:49:52,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:52,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462189667] [2024-10-11 14:49:52,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:52,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 14:49:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 14:49:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 14:49:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 14:49:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 14:49:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 14:49:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-11 14:49:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-11 14:49:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:54,639 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2024-10-11 14:49:54,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:54,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462189667] [2024-10-11 14:49:54,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462189667] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:54,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:49:54,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 14:49:54,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484400140] [2024-10-11 14:49:54,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:54,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 14:49:54,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:54,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 14:49:54,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 14:49:54,642 INFO L87 Difference]: Start difference. First operand 247 states and 339 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-11 14:49:55,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:55,959 INFO L93 Difference]: Finished difference Result 464 states and 638 transitions. [2024-10-11 14:49:55,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 14:49:55,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 212 [2024-10-11 14:49:55,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:55,963 INFO L225 Difference]: With dead ends: 464 [2024-10-11 14:49:55,963 INFO L226 Difference]: Without dead ends: 262 [2024-10-11 14:49:55,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-10-11 14:49:55,965 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 247 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:55,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 323 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-11 14:49:55,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-10-11 14:49:55,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 243. [2024-10-11 14:49:55,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 154 states have (on average 1.1753246753246753) internal successors, (181), 154 states have internal predecessors, (181), 65 states have call successors, (65), 22 states have call predecessors, (65), 23 states have return successors, (87), 66 states have call predecessors, (87), 64 states have call successors, (87) [2024-10-11 14:49:55,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 333 transitions. [2024-10-11 14:49:55,999 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 333 transitions. Word has length 212 [2024-10-11 14:49:56,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:56,001 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 333 transitions. [2024-10-11 14:49:56,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-11 14:49:56,001 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 333 transitions. [2024-10-11 14:49:56,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-10-11 14:49:56,002 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:56,003 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:49:56,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 14:49:56,003 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:56,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:56,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1035092443, now seen corresponding path program 1 times [2024-10-11 14:49:56,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:56,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381986009] [2024-10-11 14:49:56,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:56,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:57,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:57,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:57,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 14:49:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 14:49:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 14:49:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 14:49:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 14:49:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 14:49:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:57,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-11 14:49:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-11 14:49:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:57,670 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2024-10-11 14:49:57,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:57,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381986009] [2024-10-11 14:49:57,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381986009] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:49:57,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496302761] [2024-10-11 14:49:57,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:57,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:57,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:49:57,672 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:49:57,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 14:49:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:58,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 3043 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-11 14:49:58,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:49:58,536 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 [2024-10-11 14:49:58,731 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-10-11 14:49:58,732 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:49:58,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496302761] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:58,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:49:58,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 17 [2024-10-11 14:49:58,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756693830] [2024-10-11 14:49:58,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:58,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 14:49:58,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:58,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 14:49:58,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-10-11 14:49:58,734 INFO L87 Difference]: Start difference. First operand 243 states and 333 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2024-10-11 14:49:59,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:59,487 INFO L93 Difference]: Finished difference Result 472 states and 661 transitions. [2024-10-11 14:49:59,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 14:49:59,488 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) Word has length 212 [2024-10-11 14:49:59,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:59,490 INFO L225 Difference]: With dead ends: 472 [2024-10-11 14:49:59,491 INFO L226 Difference]: Without dead ends: 270 [2024-10-11 14:49:59,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2024-10-11 14:49:59,492 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 56 mSDsluCounter, 1380 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:59,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1597 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 14:49:59,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-10-11 14:49:59,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 235. [2024-10-11 14:49:59,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 147 states have (on average 1.1768707482993197) internal successors, (173), 147 states have internal predecessors, (173), 65 states have call successors, (65), 22 states have call predecessors, (65), 22 states have return successors, (78), 65 states have call predecessors, (78), 64 states have call successors, (78) [2024-10-11 14:49:59,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 316 transitions. [2024-10-11 14:49:59,516 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 316 transitions. Word has length 212 [2024-10-11 14:49:59,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:59,517 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 316 transitions. [2024-10-11 14:49:59,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2024-10-11 14:49:59,517 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 316 transitions. [2024-10-11 14:49:59,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-10-11 14:49:59,518 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:59,519 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:49:59,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 14:49:59,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-11 14:49:59,724 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:59,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:59,724 INFO L85 PathProgramCache]: Analyzing trace with hash -916650969, now seen corresponding path program 1 times [2024-10-11 14:49:59,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:59,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214555321] [2024-10-11 14:49:59,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:59,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms