./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.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.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 83b04173d709803d577cfa49fe0a9356919fe4fb57e740404cfb5ffbf2560c97 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 14:48:48,900 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 14:48:48,966 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-11 14:48:48,971 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 14:48:48,974 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 14:48:48,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 14:48:48,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 14:48:48,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 14:48:48,995 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 14:48:48,995 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 14:48:48,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 14:48:48,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 14:48:48,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 14:48:48,996 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 14:48:48,996 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 14:48:48,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 14:48:48,997 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 14:48:48,997 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 14:48:48,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 14:48:48,998 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 14:48:48,998 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 14:48:48,999 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 14:48:48,999 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 14:48:48,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 14:48:48,999 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 14:48:49,000 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 14:48:49,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 14:48:49,000 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 14:48:49,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 14:48:49,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:48:49,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 14:48:49,001 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 14:48:49,002 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 14:48:49,002 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 14:48:49,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 14:48:49,002 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 14:48:49,003 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 14:48:49,003 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 14:48:49,003 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 14:48:49,003 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83b04173d709803d577cfa49fe0a9356919fe4fb57e740404cfb5ffbf2560c97 [2024-10-11 14:48:49,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 14:48:49,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 14:48:49,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 14:48:49,237 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 14:48:49,237 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 14:48:49,239 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i [2024-10-11 14:48:50,527 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 14:48:50,880 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 14:48:50,881 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i [2024-10-11 14:48:50,911 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f138509ca/40c94569d1504199b26b3bd1f708515b/FLAGb5b5e6d31 [2024-10-11 14:48:51,104 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f138509ca/40c94569d1504199b26b3bd1f708515b [2024-10-11 14:48:51,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 14:48:51,108 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 14:48:51,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 14:48:51,113 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 14:48:51,118 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 14:48:51,118 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:48:51" (1/1) ... [2024-10-11 14:48:51,119 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a29c3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:48:51, skipping insertion in model container [2024-10-11 14:48:51,119 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:48:51" (1/1) ... [2024-10-11 14:48:51,231 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 14:48:51,436 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.i[4496,4509] [2024-10-11 14:48:51,443 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.i[4556,4569] [2024-10-11 14:48:52,016 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,021 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,021 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,022 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,022 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,041 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,042 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,043 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,043 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,336 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,340 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:48:52,423 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 14:48:52,434 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.i[4496,4509] [2024-10-11 14:48:52,434 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.i[4556,4569] [2024-10-11 14:48:52,470 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,471 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,471 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,471 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,472 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,476 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,476 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,477 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,477 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,528 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,528 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:48:52,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2024-10-11 14:48:52,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:48:52,717 INFO L204 MainTranslator]: Completed translation [2024-10-11 14:48:52,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:48:52 WrapperNode [2024-10-11 14:48:52,718 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 14:48:52,719 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 14:48:52,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 14:48:52,719 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 14:48:52,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:48:52" (1/1) ... [2024-10-11 14:48:52,787 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:48:52" (1/1) ... [2024-10-11 14:48:52,847 INFO L138 Inliner]: procedures = 678, calls = 1542, calls flagged for inlining = 54, calls inlined = 10, statements flattened = 723 [2024-10-11 14:48:52,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 14:48:52,848 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 14:48:52,848 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 14:48:52,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 14:48:52,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:48:52" (1/1) ... [2024-10-11 14:48:52,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:48:52" (1/1) ... [2024-10-11 14:48:52,868 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:48:52" (1/1) ... [2024-10-11 14:48:52,935 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, 1, 2, 0, 21, 1, 5]. The 8 writes are split as follows [0, 1, 0, 2, 4, 1, 0]. [2024-10-11 14:48:52,935 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:48:52" (1/1) ... [2024-10-11 14:48:52,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:48:52" (1/1) ... [2024-10-11 14:48:52,983 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:48:52" (1/1) ... [2024-10-11 14:48:52,989 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:48:52" (1/1) ... [2024-10-11 14:48:52,995 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:48:52" (1/1) ... [2024-10-11 14:48:52,999 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:48:52" (1/1) ... [2024-10-11 14:48:53,013 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 14:48:53,018 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 14:48:53,018 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 14:48:53,019 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 14:48:53,019 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:48:52" (1/1) ... [2024-10-11 14:48:53,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:48:53,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:48:53,049 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 14:48:53,054 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 14:48:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-10-11 14:48:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-10-11 14:48:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 14:48:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-10-11 14:48:53,096 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-10-11 14:48:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-10-11 14:48:53,096 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-10-11 14:48:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-11 14:48:53,096 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-11 14:48:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 14:48:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 14:48:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 14:48:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 14:48:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-11 14:48:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-11 14:48:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-11 14:48:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-11 14:48:53,096 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-11 14:48:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 14:48:53,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 14:48:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 14:48:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 14:48:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-10-11 14:48:53,097 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-10-11 14:48:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 14:48:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 14:48:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 14:48:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-11 14:48:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-11 14:48:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-11 14:48:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-11 14:48:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 14:48:53,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 14:48:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-11 14:48:53,097 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-11 14:48:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-10-11 14:48:53,098 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-10-11 14:48:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-10-11 14:48:53,098 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-10-11 14:48:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-10-11 14:48:53,098 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-10-11 14:48:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-10-11 14:48:53,099 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-10-11 14:48:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-10-11 14:48:53,099 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-10-11 14:48:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 14:48:53,099 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 14:48:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 14:48:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 14:48:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 14:48:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-11 14:48:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-11 14:48:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-11 14:48:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-11 14:48:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-11 14:48:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-11 14:48:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-11 14:48:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-11 14:48:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-11 14:48:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-11 14:48:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-11 14:48:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-11 14:48:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-10-11 14:48:53,100 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-10-11 14:48:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-10-11 14:48:53,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-10-11 14:48:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 14:48:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 14:48:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 14:48:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 14:48:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-11 14:48:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-11 14:48:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-11 14:48:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2024-10-11 14:48:53,101 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2024-10-11 14:48:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-10-11 14:48:53,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-10-11 14:48:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 14:48:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 14:48:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 14:48:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 14:48:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 14:48:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-11 14:48:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-11 14:48:53,383 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 14:48:53,386 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 14:48:54,070 INFO L? ?]: Removed 159 outVars from TransFormulas that were not future-live. [2024-10-11 14:48:54,070 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 14:48:54,153 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 14:48:54,153 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-11 14:48:54,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:48:54 BoogieIcfgContainer [2024-10-11 14:48:54,154 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 14:48:54,156 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 14:48:54,156 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 14:48:54,159 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 14:48:54,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:48:51" (1/3) ... [2024-10-11 14:48:54,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b772855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:48:54, skipping insertion in model container [2024-10-11 14:48:54,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:48:52" (2/3) ... [2024-10-11 14:48:54,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b772855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:48:54, skipping insertion in model container [2024-10-11 14:48:54,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:48:54" (3/3) ... [2024-10-11 14:48:54,161 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_top_harness.i [2024-10-11 14:48:54,175 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 14:48:54,176 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 14:48:54,240 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:48:54,247 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;@7813b254, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:48:54,247 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 14:48:54,252 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 14:48:54,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-11 14:48:54,273 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:48:54,274 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 14:48:54,275 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:48:54,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:48:54,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1194611214, now seen corresponding path program 1 times [2024-10-11 14:48:54,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:48:54,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074353494] [2024-10-11 14:48:54,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:48:54,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:48:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:54,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:54,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:48:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:54,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:48:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:54,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:48:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:54,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:48:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:54,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:48:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:54,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:48:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:54,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:48:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:55,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:48:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:55,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:48:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:55,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:48:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:55,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:48:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:55,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:48:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:55,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:48:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:55,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:48:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:55,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:48:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:55,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-11 14:48:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:55,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 14:48:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:55,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 14:48:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:55,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 14:48:55,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:55,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:55,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 14:48:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:55,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 14:48:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:55,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 14:48:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:55,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-11 14:48:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:55,335 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 14:48:55,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:48:55,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074353494] [2024-10-11 14:48:55,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074353494] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:48:55,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:48:55,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 14:48:55,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923729408] [2024-10-11 14:48:55,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:48:55,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 14:48:55,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:48:55,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 14:48:55,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 14:48:55,367 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 14:48:56,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:48:56,782 INFO L93 Difference]: Finished difference Result 393 states and 578 transitions. [2024-10-11 14:48:56,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 14:48:56,784 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 14:48:56,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:48:56,793 INFO L225 Difference]: With dead ends: 393 [2024-10-11 14:48:56,793 INFO L226 Difference]: Without dead ends: 220 [2024-10-11 14:48:56,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-10-11 14:48:56,803 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 317 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 14:48:56,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 153 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 14:48:56,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-10-11 14:48:56,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 189. [2024-10-11 14:48:56,861 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 14:48:56,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 251 transitions. [2024-10-11 14:48:56,865 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 251 transitions. Word has length 134 [2024-10-11 14:48:56,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:48:56,865 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 251 transitions. [2024-10-11 14:48:56,866 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 14:48:56,866 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 251 transitions. [2024-10-11 14:48:56,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-11 14:48:56,868 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:48:56,869 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 14:48:56,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 14:48:56,869 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:48:56,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:48:56,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1271581244, now seen corresponding path program 1 times [2024-10-11 14:48:56,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:48:56,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792607546] [2024-10-11 14:48:56,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:48:56,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:48:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:48:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:48:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:48:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:48:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:48:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:48:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:48:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:48:57,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:48:57,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:48:57,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:48:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:48:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:48:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:48:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:48:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-11 14:48:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 14:48:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 14:48:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 14:48:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 14:48:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 14:48:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 14:48:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-11 14:48:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:57,563 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 14:48:57,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:48:57,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792607546] [2024-10-11 14:48:57,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792607546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:48:57,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:48:57,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 14:48:57,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374160900] [2024-10-11 14:48:57,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:48:57,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 14:48:57,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:48:57,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 14:48:57,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 14:48:57,568 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 14:48:59,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:48:59,025 INFO L93 Difference]: Finished difference Result 366 states and 498 transitions. [2024-10-11 14:48:59,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 14:48:59,025 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 14:48:59,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:48:59,028 INFO L225 Difference]: With dead ends: 366 [2024-10-11 14:48:59,028 INFO L226 Difference]: Without dead ends: 220 [2024-10-11 14:48:59,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-10-11 14:48:59,030 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 425 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-11 14:48:59,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 227 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 920 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-11 14:48:59,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-10-11 14:48:59,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 189. [2024-10-11 14:48:59,053 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 14:48:59,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 250 transitions. [2024-10-11 14:48:59,054 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 250 transitions. Word has length 134 [2024-10-11 14:48:59,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:48:59,055 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 250 transitions. [2024-10-11 14:48:59,055 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 14:48:59,055 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 250 transitions. [2024-10-11 14:48:59,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-11 14:48:59,057 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:48:59,057 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 14:48:59,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 14:48:59,057 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:48:59,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:48:59,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1877657214, now seen corresponding path program 1 times [2024-10-11 14:48:59,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:48:59,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770481535] [2024-10-11 14:48:59,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:48:59,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:48:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:48:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:48:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:48:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:48:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:48:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:48:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:48:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:48:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:48:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:48:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:48:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:48:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:48:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:48:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:48:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:48:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 14:48:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 14:48:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-11 14:48:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 14:48:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 14:48:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 14:48:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 14:48:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 14:48:59,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:59,760 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 14:48:59,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:48:59,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770481535] [2024-10-11 14:48:59,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770481535] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:48:59,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904754115] [2024-10-11 14:48:59,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:48:59,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:48:59,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:48:59,765 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 14:48:59,767 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 14:49:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:00,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 2429 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 14:49:00,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:49:00,329 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 14:49:00,330 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:49:00,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904754115] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:00,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:49:00,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-10-11 14:49:00,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569614167] [2024-10-11 14:49:00,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:00,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 14:49:00,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:00,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 14:49:00,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-10-11 14:49:00,331 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 14:49:00,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:00,679 INFO L93 Difference]: Finished difference Result 354 states and 476 transitions. [2024-10-11 14:49:00,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 14:49:00,680 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 14:49:00,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:00,682 INFO L225 Difference]: With dead ends: 354 [2024-10-11 14:49:00,682 INFO L226 Difference]: Without dead ends: 191 [2024-10-11 14:49:00,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-10-11 14:49:00,684 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 46 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:00,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1274 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 14:49:00,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-10-11 14:49:00,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2024-10-11 14:49:00,711 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 14:49:00,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 257 transitions. [2024-10-11 14:49:00,713 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 257 transitions. Word has length 142 [2024-10-11 14:49:00,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:00,713 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 257 transitions. [2024-10-11 14:49:00,713 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 14:49:00,714 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 257 transitions. [2024-10-11 14:49:00,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-11 14:49:00,715 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:00,715 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 14:49:00,732 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 14:49:00,916 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 14:49:00,916 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:00,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:00,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1785894814, now seen corresponding path program 1 times [2024-10-11 14:49:00,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:00,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965587506] [2024-10-11 14:49:00,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:00,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 14:49:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 14:49:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 14:49:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 14:49:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 14:49:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 14:49:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-11 14:49:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-11 14:49:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:01,779 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 14:49:01,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:01,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965587506] [2024-10-11 14:49:01,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965587506] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:01,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:49:01,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 14:49:01,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866041496] [2024-10-11 14:49:01,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:01,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 14:49:01,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:01,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 14:49:01,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 14:49:01,784 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 14:49:03,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:03,296 INFO L93 Difference]: Finished difference Result 350 states and 474 transitions. [2024-10-11 14:49:03,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 14:49:03,297 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 14:49:03,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:03,299 INFO L225 Difference]: With dead ends: 350 [2024-10-11 14:49:03,299 INFO L226 Difference]: Without dead ends: 201 [2024-10-11 14:49:03,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-10-11 14:49:03,300 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 282 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:03,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 298 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-11 14:49:03,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-10-11 14:49:03,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 191. [2024-10-11 14:49:03,316 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 14:49:03,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 256 transitions. [2024-10-11 14:49:03,318 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 256 transitions. Word has length 155 [2024-10-11 14:49:03,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:03,318 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 256 transitions. [2024-10-11 14:49:03,318 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 14:49:03,319 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 256 transitions. [2024-10-11 14:49:03,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-11 14:49:03,320 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:03,320 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 14:49:03,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 14:49:03,320 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:03,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:03,321 INFO L85 PathProgramCache]: Analyzing trace with hash -836877653, now seen corresponding path program 1 times [2024-10-11 14:49:03,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:03,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755255434] [2024-10-11 14:49:03,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:03,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:03,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:03,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:03,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:03,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:03,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:03,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:03,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:03,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:03,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:03,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:03,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:03,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:03,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:03,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:03,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:03,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:03,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 14:49:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 14:49:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-11 14:49:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 14:49:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 14:49:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-11 14:49:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-11 14:49:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-11 14:49:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,193 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 14:49:04,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:04,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755255434] [2024-10-11 14:49:04,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755255434] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:49:04,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218784680] [2024-10-11 14:49:04,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:04,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:04,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:49:04,198 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 14:49:04,199 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 14:49:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:04,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 2636 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 14:49:04,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:49:04,789 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 14:49:04,791 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:49:04,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218784680] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:04,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:49:04,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2024-10-11 14:49:04,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401617020] [2024-10-11 14:49:04,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:04,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 14:49:04,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:04,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 14:49:04,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-10-11 14:49:04,793 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 14:49:05,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:05,258 INFO L93 Difference]: Finished difference Result 353 states and 474 transitions. [2024-10-11 14:49:05,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 14:49:05,259 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 14:49:05,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:05,261 INFO L225 Difference]: With dead ends: 353 [2024-10-11 14:49:05,261 INFO L226 Difference]: Without dead ends: 191 [2024-10-11 14:49:05,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-10-11 14:49:05,262 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 14:49:05,266 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 14:49:05,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-10-11 14:49:05,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2024-10-11 14:49:05,287 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 14:49:05,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 255 transitions. [2024-10-11 14:49:05,289 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 255 transitions. Word has length 171 [2024-10-11 14:49:05,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:05,289 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 255 transitions. [2024-10-11 14:49:05,289 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 14:49:05,289 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 255 transitions. [2024-10-11 14:49:05,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-10-11 14:49:05,291 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:05,291 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 14:49:05,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 14:49:05,491 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 14:49:05,492 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:05,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:05,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1006986571, now seen corresponding path program 2 times [2024-10-11 14:49:05,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:05,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999719763] [2024-10-11 14:49:05,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:05,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:05,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:05,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:05,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:05,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:05,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:05,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:05,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:05,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 14:49:06,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 14:49:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 14:49:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 14:49:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 14:49:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 14:49:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-11 14:49:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 14:49:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:06,315 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 14:49:06,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:06,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999719763] [2024-10-11 14:49:06,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999719763] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:49:06,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999349166] [2024-10-11 14:49:06,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 14:49:06,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:06,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:49:06,318 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 14:49:06,320 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 14:49:06,784 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 14:49:06,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 14:49:06,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 2771 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 14:49:06,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:49:06,911 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-10-11 14:49:06,911 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:49:06,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999349166] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:06,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:49:06,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2024-10-11 14:49:06,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516553542] [2024-10-11 14:49:06,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:06,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 14:49:06,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:06,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 14:49:06,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-10-11 14:49:06,914 INFO L87 Difference]: Start difference. First operand 191 states and 255 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2024-10-11 14:49:07,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:07,272 INFO L93 Difference]: Finished difference Result 326 states and 440 transitions. [2024-10-11 14:49:07,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 14:49:07,275 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) Word has length 184 [2024-10-11 14:49:07,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:07,277 INFO L225 Difference]: With dead ends: 326 [2024-10-11 14:49:07,277 INFO L226 Difference]: Without dead ends: 203 [2024-10-11 14:49:07,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-10-11 14:49:07,278 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 38 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:07,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 1397 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 14:49:07,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-10-11 14:49:07,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 202. [2024-10-11 14:49:07,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 119 states have (on average 1.2016806722689075) internal successors, (143), 121 states have internal predecessors, (143), 62 states have call successors, (62), 19 states have call predecessors, (62), 20 states have return successors, (66), 61 states have call predecessors, (66), 61 states have call successors, (66) [2024-10-11 14:49:07,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 271 transitions. [2024-10-11 14:49:07,293 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 271 transitions. Word has length 184 [2024-10-11 14:49:07,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:07,294 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 271 transitions. [2024-10-11 14:49:07,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2024-10-11 14:49:07,294 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 271 transitions. [2024-10-11 14:49:07,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-11 14:49:07,295 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:07,296 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 14:49:07,312 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 14:49:07,496 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 14:49:07,496 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:07,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:07,497 INFO L85 PathProgramCache]: Analyzing trace with hash 239120901, now seen corresponding path program 1 times [2024-10-11 14:49:07,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:07,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955618636] [2024-10-11 14:49:07,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:07,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:09,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:09,673 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 2 [2024-10-11 14:49:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 14:49:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 14:49:09,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 14:49:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 14:49:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 14:49:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 14:49:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 14:49:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-11 14:49:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:09,839 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 14:49:09,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:09,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955618636] [2024-10-11 14:49:09,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955618636] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:09,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:49:09,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 14:49:09,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838069848] [2024-10-11 14:49:09,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:09,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 14:49:09,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:09,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 14:49:09,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-11 14:49:09,842 INFO L87 Difference]: Start difference. First operand 202 states and 271 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 14:49:11,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:11,297 INFO L93 Difference]: Finished difference Result 380 states and 514 transitions. [2024-10-11 14:49:11,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 14:49:11,297 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 14:49:11,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:11,299 INFO L225 Difference]: With dead ends: 380 [2024-10-11 14:49:11,299 INFO L226 Difference]: Without dead ends: 223 [2024-10-11 14:49:11,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2024-10-11 14:49:11,301 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 276 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:11,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 310 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 14:49:11,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-10-11 14:49:11,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 204. [2024-10-11 14:49:11,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 121 states have (on average 1.1983471074380165) internal successors, (145), 123 states have internal predecessors, (145), 62 states have call successors, (62), 19 states have call predecessors, (62), 20 states have return successors, (66), 61 states have call predecessors, (66), 61 states have call successors, (66) [2024-10-11 14:49:11,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 273 transitions. [2024-10-11 14:49:11,320 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 273 transitions. Word has length 210 [2024-10-11 14:49:11,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:11,322 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 273 transitions. [2024-10-11 14:49:11,322 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 14:49:11,323 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 273 transitions. [2024-10-11 14:49:11,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-11 14:49:11,324 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:11,324 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 14:49:11,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 14:49:11,325 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:11,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:11,325 INFO L85 PathProgramCache]: Analyzing trace with hash 210620611, now seen corresponding path program 1 times [2024-10-11 14:49:11,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:11,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240107229] [2024-10-11 14:49:11,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:11,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:11,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:11,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 14:49:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 14:49:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 14:49:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 14:49:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 14:49:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 14:49:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 14:49:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-11 14:49:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:11,946 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 14:49:11,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:11,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240107229] [2024-10-11 14:49:11,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240107229] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:11,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:49:11,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 14:49:11,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552531674] [2024-10-11 14:49:11,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:11,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 14:49:11,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:11,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 14:49:11,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 14:49:11,949 INFO L87 Difference]: Start difference. First operand 204 states and 273 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 14:49:12,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:12,965 INFO L93 Difference]: Finished difference Result 376 states and 507 transitions. [2024-10-11 14:49:12,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 14:49:12,965 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 14:49:12,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:12,967 INFO L225 Difference]: With dead ends: 376 [2024-10-11 14:49:12,967 INFO L226 Difference]: Without dead ends: 217 [2024-10-11 14:49:12,968 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 14:49:12,969 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 312 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:12,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 250 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 14:49:12,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-10-11 14:49:13,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 206. [2024-10-11 14:49:13,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 123 states have (on average 1.1951219512195121) internal successors, (147), 125 states have internal predecessors, (147), 62 states have call successors, (62), 19 states have call predecessors, (62), 20 states have return successors, (66), 61 states have call predecessors, (66), 61 states have call successors, (66) [2024-10-11 14:49:13,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 275 transitions. [2024-10-11 14:49:13,008 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 275 transitions. Word has length 210 [2024-10-11 14:49:13,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:13,009 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 275 transitions. [2024-10-11 14:49:13,009 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 14:49:13,009 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 275 transitions. [2024-10-11 14:49:13,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-11 14:49:13,011 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:13,011 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 14:49:13,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 14:49:13,012 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:13,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:13,012 INFO L85 PathProgramCache]: Analyzing trace with hash 2087683841, now seen corresponding path program 1 times [2024-10-11 14:49:13,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:13,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738310100] [2024-10-11 14:49:13,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:13,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:16,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:16,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:16,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:16,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:16,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:16,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:16,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:16,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:16,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:17,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 14:49:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 14:49:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 14:49:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 14:49:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 14:49:18,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 14:49:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 14:49:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-11 14:49:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,353 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 14:49:18,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:18,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738310100] [2024-10-11 14:49:18,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738310100] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:49:18,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835444902] [2024-10-11 14:49:18,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:18,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:18,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:49:18,356 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 14:49:18,357 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 14:49:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:18,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 3033 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-10-11 14:49:18,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:49:18,997 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 14:49:18,999 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 14:49:19,553 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 14:49:19,553 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:49:19,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835444902] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:19,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:49:19,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [26] total 35 [2024-10-11 14:49:19,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639890543] [2024-10-11 14:49:19,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:19,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 14:49:19,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:19,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 14:49:19,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1102, Unknown=0, NotChecked=0, Total=1190 [2024-10-11 14:49:19,556 INFO L87 Difference]: Start difference. First operand 206 states and 275 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 14:49:21,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:21,669 INFO L93 Difference]: Finished difference Result 390 states and 529 transitions. [2024-10-11 14:49:21,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 14:49:21,670 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 14:49:21,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:21,672 INFO L225 Difference]: With dead ends: 390 [2024-10-11 14:49:21,672 INFO L226 Difference]: Without dead ends: 229 [2024-10-11 14:49:21,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=1512, Unknown=0, NotChecked=0, Total=1640 [2024-10-11 14:49:21,674 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 57 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 2192 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:21,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 2192 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 14:49:21,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-10-11 14:49:21,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 225. [2024-10-11 14:49:21,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 141 states have (on average 1.2056737588652482) internal successors, (170), 143 states have internal predecessors, (170), 62 states have call successors, (62), 19 states have call predecessors, (62), 21 states have return successors, (75), 62 states have call predecessors, (75), 61 states have call successors, (75) [2024-10-11 14:49:21,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 307 transitions. [2024-10-11 14:49:21,694 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 307 transitions. Word has length 210 [2024-10-11 14:49:21,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:21,696 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 307 transitions. [2024-10-11 14:49:21,696 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 14:49:21,696 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 307 transitions. [2024-10-11 14:49:21,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-11 14:49:21,697 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:21,698 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 14:49:21,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 14:49:21,901 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,SelfDestructingSolverStorable8 [2024-10-11 14:49:21,902 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:21,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:21,902 INFO L85 PathProgramCache]: Analyzing trace with hash 54289795, now seen corresponding path program 1 times [2024-10-11 14:49:21,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:21,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18944325] [2024-10-11 14:49:21,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:21,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:22,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 14:49:22,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 14:49:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 14:49:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 14:49:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 14:49:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 14:49:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 14:49:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-11 14:49:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:22,542 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 14:49:22,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:22,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18944325] [2024-10-11 14:49:22,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18944325] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:49:22,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305877308] [2024-10-11 14:49:22,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:22,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:22,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:49:22,546 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 14:49:22,548 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 14:49:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:23,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 3028 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 14:49:23,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:49:23,176 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 14:49:23,176 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:49:23,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305877308] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:23,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:49:23,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 8 [2024-10-11 14:49:23,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977278525] [2024-10-11 14:49:23,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:23,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:49:23,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:23,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:49:23,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 14:49:23,179 INFO L87 Difference]: Start difference. First operand 225 states and 307 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 14:49:23,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:23,352 INFO L93 Difference]: Finished difference Result 405 states and 566 transitions. [2024-10-11 14:49:23,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:49:23,357 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 14:49:23,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:23,359 INFO L225 Difference]: With dead ends: 405 [2024-10-11 14:49:23,359 INFO L226 Difference]: Without dead ends: 225 [2024-10-11 14:49:23,360 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 14:49:23,361 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 14:49:23,362 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 14:49:23,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-10-11 14:49:23,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2024-10-11 14:49:23,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 141 states have (on average 1.198581560283688) internal successors, (169), 143 states have internal predecessors, (169), 62 states have call successors, (62), 19 states have call predecessors, (62), 21 states have return successors, (75), 62 states have call predecessors, (75), 61 states have call successors, (75) [2024-10-11 14:49:23,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 306 transitions. [2024-10-11 14:49:23,386 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 306 transitions. Word has length 210 [2024-10-11 14:49:23,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:23,387 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 306 transitions. [2024-10-11 14:49:23,387 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 14:49:23,387 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 306 transitions. [2024-10-11 14:49:23,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-10-11 14:49:23,389 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:23,389 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 14:49:23,410 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 14:49:23,590 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 14:49:23,590 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:23,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:23,591 INFO L85 PathProgramCache]: Analyzing trace with hash 831616231, now seen corresponding path program 1 times [2024-10-11 14:49:23,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:23,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028844930] [2024-10-11 14:49:23,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:23,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:27,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:27,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:27,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 14:49:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 14:49:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 14:49:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 14:49:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 14:49:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 14:49:28,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-11 14:49:28,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-11 14:49:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:28,520 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-10-11 14:49:28,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:28,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028844930] [2024-10-11 14:49:28,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028844930] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:49:28,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568864899] [2024-10-11 14:49:28,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:28,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:28,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:49:28,523 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 14:49:28,523 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 14:49:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:29,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 3038 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-10-11 14:49:29,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:49:29,220 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 14:49:29,519 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 14:49:29,519 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:49:29,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568864899] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:29,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:49:29,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18] total 28 [2024-10-11 14:49:29,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627057814] [2024-10-11 14:49:29,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:29,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 14:49:29,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:29,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 14:49:29,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2024-10-11 14:49:29,520 INFO L87 Difference]: Start difference. First operand 225 states and 306 transitions. Second operand has 12 states, 12 states have (on average 7.75) internal successors, (93), 12 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 14:49:31,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:31,126 INFO L93 Difference]: Finished difference Result 432 states and 596 transitions. [2024-10-11 14:49:31,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 14:49:31,127 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.75) internal successors, (93), 12 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 14:49:31,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:31,129 INFO L225 Difference]: With dead ends: 432 [2024-10-11 14:49:31,129 INFO L226 Difference]: Without dead ends: 252 [2024-10-11 14:49:31,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 270 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=94, Invalid=962, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 14:49:31,131 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 51 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:31,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 2129 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 14:49:31,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-10-11 14:49:31,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 238. [2024-10-11 14:49:31,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 153 states have (on average 1.2156862745098038) internal successors, (186), 155 states have internal predecessors, (186), 62 states have call successors, (62), 19 states have call predecessors, (62), 22 states have return successors, (84), 63 states have call predecessors, (84), 61 states have call successors, (84) [2024-10-11 14:49:31,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 332 transitions. [2024-10-11 14:49:31,147 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 332 transitions. Word has length 212 [2024-10-11 14:49:31,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:31,148 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 332 transitions. [2024-10-11 14:49:31,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.75) internal successors, (93), 12 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 14:49:31,148 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 332 transitions. [2024-10-11 14:49:31,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-10-11 14:49:31,149 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:31,149 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 14:49:31,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 14:49:31,350 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 14:49:31,351 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:31,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:31,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1659045673, now seen corresponding path program 1 times [2024-10-11 14:49:31,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:31,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845375164] [2024-10-11 14:49:31,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:31,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:32,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:32,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 14:49:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 14:49:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 14:49:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 14:49:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 14:49:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 14:49:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-11 14:49:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-11 14:49:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:32,930 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 14:49:32,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:32,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845375164] [2024-10-11 14:49:32,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845375164] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:32,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:49:32,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 14:49:32,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235326092] [2024-10-11 14:49:32,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:32,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 14:49:32,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:32,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 14:49:32,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 14:49:32,932 INFO L87 Difference]: Start difference. First operand 238 states and 332 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 14:49:34,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:34,228 INFO L93 Difference]: Finished difference Result 449 states and 632 transitions. [2024-10-11 14:49:34,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 14:49:34,229 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 14:49:34,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:34,231 INFO L225 Difference]: With dead ends: 449 [2024-10-11 14:49:34,231 INFO L226 Difference]: Without dead ends: 256 [2024-10-11 14:49:34,232 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 14:49:34,232 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 246 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:34,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 330 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-11 14:49:34,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-10-11 14:49:34,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 223. [2024-10-11 14:49:34,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 139 states have (on average 1.1942446043165467) internal successors, (166), 141 states have internal predecessors, (166), 62 states have call successors, (62), 19 states have call predecessors, (62), 21 states have return successors, (75), 62 states have call predecessors, (75), 61 states have call successors, (75) [2024-10-11 14:49:34,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 303 transitions. [2024-10-11 14:49:34,250 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 303 transitions. Word has length 212 [2024-10-11 14:49:34,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:34,251 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 303 transitions. [2024-10-11 14:49:34,251 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 14:49:34,251 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 303 transitions. [2024-10-11 14:49:34,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-10-11 14:49:34,252 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:34,252 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 14:49:34,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 14:49:34,252 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:34,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:34,253 INFO L85 PathProgramCache]: Analyzing trace with hash 950057705, now seen corresponding path program 1 times [2024-10-11 14:49:34,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:34,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819640576] [2024-10-11 14:49:34,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:34,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:35,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:35,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 14:49:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 14:49:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 14:49:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 14:49:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 14:49:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 14:49:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-11 14:49:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-11 14:49:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:35,873 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 14:49:35,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:35,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819640576] [2024-10-11 14:49:35,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819640576] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:49:35,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75180491] [2024-10-11 14:49:35,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:35,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:35,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:49:35,875 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 14:49:35,875 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 14:49:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:36,567 INFO L255 TraceCheckSpWp]: Trace formula consists of 3033 conjuncts, 112 conjuncts are in the unsatisfiable core [2024-10-11 14:49:36,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:49:36,865 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 14:49:36,865 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:49:36,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75180491] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:49:36,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:49:36,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [9] total 19 [2024-10-11 14:49:36,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893088174] [2024-10-11 14:49:36,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:49:36,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 14:49:36,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:49:36,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 14:49:36,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2024-10-11 14:49:36,867 INFO L87 Difference]: Start difference. First operand 223 states and 303 transitions. Second operand has 12 states, 12 states have (on average 7.75) internal successors, (93), 12 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 14:49:38,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:49:38,684 INFO L93 Difference]: Finished difference Result 439 states and 609 transitions. [2024-10-11 14:49:38,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 14:49:38,685 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.75) internal successors, (93), 12 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 14:49:38,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:49:38,687 INFO L225 Difference]: With dead ends: 439 [2024-10-11 14:49:38,687 INFO L226 Difference]: Without dead ends: 261 [2024-10-11 14:49:38,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2024-10-11 14:49:38,688 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 59 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-11 14:49:38,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 2166 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-11 14:49:38,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-10-11 14:49:38,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 223. [2024-10-11 14:49:38,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 139 states have (on average 1.1942446043165467) internal successors, (166), 141 states have internal predecessors, (166), 62 states have call successors, (62), 19 states have call predecessors, (62), 21 states have return successors, (75), 62 states have call predecessors, (75), 61 states have call successors, (75) [2024-10-11 14:49:38,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 303 transitions. [2024-10-11 14:49:38,707 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 303 transitions. Word has length 212 [2024-10-11 14:49:38,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:49:38,708 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 303 transitions. [2024-10-11 14:49:38,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.75) internal successors, (93), 12 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 14:49:38,708 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 303 transitions. [2024-10-11 14:49:38,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-10-11 14:49:38,709 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:49:38,709 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 14:49:38,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-11 14:49:38,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:38,911 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:49:38,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:49:38,911 INFO L85 PathProgramCache]: Analyzing trace with hash -916650969, now seen corresponding path program 1 times [2024-10-11 14:49:38,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:49:38,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225145790] [2024-10-11 14:49:38,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:38,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:49:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:49:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:49:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 14:49:42,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 14:49:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 14:49:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 14:49:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 14:49:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 14:49:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 14:49:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:49:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:49:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:42,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:49:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 14:49:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 14:49:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 14:49:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 14:49:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 14:49:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 14:49:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 14:49:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-11 14:49:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-11 14:49:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:49:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:49:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:43,947 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 14:49:43,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:49:43,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225145790] [2024-10-11 14:49:43,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225145790] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:49:43,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362671678] [2024-10-11 14:49:43,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:49:43,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:49:43,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:49:43,950 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 14:49:43,951 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 14:49:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:49:46,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 3038 conjuncts, 167 conjuncts are in the unsatisfiable core [2024-10-11 14:49:46,489 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:49:46,545 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 14:49:46,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-11 14:49:46,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 55 [2024-10-11 14:49:59,009 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)