./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_string_new_from_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d8feb785efb60d35f9204dc33a12e80ea59efcec5de2b7c2ff320ef29197b0bd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 13:03:40,343 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 13:03:40,412 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 13:03:40,417 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 13:03:40,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 13:03:40,448 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 13:03:40,448 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 13:03:40,449 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 13:03:40,450 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 13:03:40,451 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 13:03:40,452 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 13:03:40,452 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 13:03:40,453 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 13:03:40,455 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 13:03:40,455 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 13:03:40,455 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 13:03:40,456 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 13:03:40,456 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 13:03:40,456 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 13:03:40,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 13:03:40,457 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 13:03:40,457 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 13:03:40,457 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 13:03:40,458 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 13:03:40,458 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 13:03:40,458 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 13:03:40,459 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 13:03:40,459 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 13:03:40,459 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 13:03:40,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 13:03:40,460 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 13:03:40,460 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 13:03:40,460 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 13:03:40,460 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 13:03:40,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 13:03:40,461 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 13:03:40,461 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 13:03:40,461 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 13:03:40,462 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 13:03:40,462 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8feb785efb60d35f9204dc33a12e80ea59efcec5de2b7c2ff320ef29197b0bd [2024-10-24 13:03:40,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 13:03:40,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 13:03:40,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 13:03:40,736 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 13:03:40,736 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 13:03:40,738 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i [2024-10-24 13:03:42,244 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 13:03:42,791 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 13:03:42,792 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i [2024-10-24 13:03:42,833 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a6c5ef4f/bc761db56b8a4c449628122c3b3934cd/FLAG23ad39b74 [2024-10-24 13:03:42,851 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a6c5ef4f/bc761db56b8a4c449628122c3b3934cd [2024-10-24 13:03:42,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 13:03:42,857 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 13:03:42,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 13:03:42,860 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 13:03:42,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 13:03:42,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:03:42" (1/1) ... [2024-10-24 13:03:42,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77555fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:42, skipping insertion in model container [2024-10-24 13:03:42,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:03:42" (1/1) ... [2024-10-24 13:03:42,961 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 13:03:43,249 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_string_new_from_c_str_harness.i[4499,4512] [2024-10-24 13:03:43,257 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_string_new_from_c_str_harness.i[4559,4572] [2024-10-24 13:03:44,194 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:44,196 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:44,197 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:44,198 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:44,198 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:44,212 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:44,213 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:44,217 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:44,218 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:44,825 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:44,825 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:44,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 13:03:44,989 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 13:03:45,005 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_string_new_from_c_str_harness.i[4499,4512] [2024-10-24 13:03:45,009 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_string_new_from_c_str_harness.i[4559,4572] [2024-10-24 13:03:45,090 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:45,091 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:45,091 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:45,091 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:45,092 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:45,096 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:45,101 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:45,103 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:45,103 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:45,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2024-10-24 13:03:45,228 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:45,228 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 13:03:45,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2024-10-24 13:03:45,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 13:03:45,484 INFO L204 MainTranslator]: Completed translation [2024-10-24 13:03:45,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:45 WrapperNode [2024-10-24 13:03:45,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 13:03:45,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 13:03:45,487 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 13:03:45,487 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 13:03:45,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:45" (1/1) ... [2024-10-24 13:03:45,599 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:45" (1/1) ... [2024-10-24 13:03:45,670 INFO L138 Inliner]: procedures = 679, calls = 2716, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 812 [2024-10-24 13:03:45,670 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 13:03:45,671 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 13:03:45,671 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 13:03:45,672 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 13:03:45,684 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:45" (1/1) ... [2024-10-24 13:03:45,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:45" (1/1) ... [2024-10-24 13:03:45,697 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:45" (1/1) ... [2024-10-24 13:03:45,802 INFO L175 MemorySlicer]: Split 515 memory accesses to 6 slices as follows [2, 256, 236, 5, 14, 2]. 50 percent of accesses are in the largest equivalence class. The 499 initializations are split as follows [2, 256, 236, 5, 0, 0]. The 5 writes are split as follows [0, 0, 0, 0, 4, 1]. [2024-10-24 13:03:45,802 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:45" (1/1) ... [2024-10-24 13:03:45,803 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:45" (1/1) ... [2024-10-24 13:03:45,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:45" (1/1) ... [2024-10-24 13:03:45,838 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:45" (1/1) ... [2024-10-24 13:03:45,852 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:45" (1/1) ... [2024-10-24 13:03:45,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:45" (1/1) ... [2024-10-24 13:03:45,875 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 13:03:45,876 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 13:03:45,876 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 13:03:45,876 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 13:03:45,877 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:45" (1/1) ... [2024-10-24 13:03:45,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 13:03:45,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 13:03:45,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 13:03:45,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 13:03:45,968 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-10-24 13:03:45,968 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-10-24 13:03:45,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 13:03:45,968 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-24 13:03:45,968 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-24 13:03:45,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-10-24 13:03:45,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-10-24 13:03:45,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-10-24 13:03:45,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-10-24 13:03:45,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-10-24 13:03:45,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-10-24 13:03:45,969 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-10-24 13:03:45,971 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-10-24 13:03:45,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-10-24 13:03:45,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-10-24 13:03:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-10-24 13:03:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-10-24 13:03:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-10-24 13:03:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-10-24 13:03:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-10-24 13:03:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-10-24 13:03:45,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-10-24 13:03:45,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-10-24 13:03:45,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-10-24 13:03:45,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-10-24 13:03:45,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 13:03:45,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 13:03:45,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 13:03:45,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 13:03:45,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 13:03:45,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-24 13:03:45,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-10-24 13:03:45,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-10-24 13:03:45,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-10-24 13:03:45,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-10-24 13:03:45,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-10-24 13:03:45,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-10-24 13:03:45,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-10-24 13:03:45,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-10-24 13:03:45,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-10-24 13:03:45,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-10-24 13:03:45,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-10-24 13:03:45,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-10-24 13:03:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-24 13:03:45,977 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-24 13:03:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 13:03:45,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 13:03:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 13:03:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 13:03:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 13:03:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 13:03:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 13:03:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-24 13:03:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-24 13:03:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-24 13:03:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 13:03:45,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 13:03:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-24 13:03:45,980 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-24 13:03:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-10-24 13:03:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-10-24 13:03:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-10-24 13:03:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-10-24 13:03:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-10-24 13:03:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-10-24 13:03:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-10-24 13:03:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-10-24 13:03:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-10-24 13:03:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-10-24 13:03:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-10-24 13:03:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-10-24 13:03:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-10-24 13:03:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-10-24 13:03:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 13:03:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 13:03:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2024-10-24 13:03:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2024-10-24 13:03:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 13:03:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-10-24 13:03:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-10-24 13:03:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-24 13:03:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-24 13:03:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-24 13:03:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-24 13:03:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-24 13:03:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-24 13:03:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_new_from_array [2024-10-24 13:03:45,985 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_new_from_array [2024-10-24 13:03:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-10-24 13:03:45,985 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-10-24 13:03:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-10-24 13:03:45,985 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-10-24 13:03:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-10-24 13:03:45,985 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-10-24 13:03:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 13:03:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 13:03:45,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 13:03:45,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 13:03:45,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 13:03:45,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-24 13:03:45,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-10-24 13:03:45,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-10-24 13:03:45,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-10-24 13:03:45,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-10-24 13:03:45,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-10-24 13:03:45,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-10-24 13:03:45,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 13:03:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 13:03:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 13:03:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 13:03:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 13:03:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-24 13:03:46,361 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 13:03:46,364 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 13:03:46,552 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !true; [2024-10-24 13:03:47,748 INFO L? ?]: Removed 174 outVars from TransFormulas that were not future-live. [2024-10-24 13:03:47,749 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 13:03:47,915 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 13:03:47,915 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-24 13:03:47,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:03:47 BoogieIcfgContainer [2024-10-24 13:03:47,916 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 13:03:47,920 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 13:03:47,920 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 13:03:47,924 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 13:03:47,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:03:42" (1/3) ... [2024-10-24 13:03:47,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1bac54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:03:47, skipping insertion in model container [2024-10-24 13:03:47,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:45" (2/3) ... [2024-10-24 13:03:47,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1bac54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:03:47, skipping insertion in model container [2024-10-24 13:03:47,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:03:47" (3/3) ... [2024-10-24 13:03:47,929 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_new_from_c_str_harness.i [2024-10-24 13:03:47,947 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 13:03:47,947 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 13:03:48,021 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 13:03:48,030 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;@744bd8d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 13:03:48,031 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 13:03:48,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 66 states have (on average 1.2121212121212122) internal successors, (80), 66 states have internal predecessors, (80), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 13:03:48,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-24 13:03:48,046 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:03:48,047 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:03:48,048 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:03:48,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:03:48,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1751828445, now seen corresponding path program 1 times [2024-10-24 13:03:48,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:03:48,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643370331] [2024-10-24 13:03:48,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:03:48,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:03:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:48,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:48,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:03:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:48,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:03:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:48,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:48,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:03:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:48,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 13:03:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:48,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 13:03:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:48,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 13:03:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:48,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:48,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 13:03:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:48,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 13:03:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:48,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 13:03:48,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:03:48,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643370331] [2024-10-24 13:03:48,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643370331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:03:48,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:03:48,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 13:03:48,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301383703] [2024-10-24 13:03:48,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:03:48,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 13:03:48,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:03:49,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 13:03:49,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 13:03:49,023 INFO L87 Difference]: Start difference. First operand has 116 states, 66 states have (on average 1.2121212121212122) internal successors, (80), 66 states have internal predecessors, (80), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 13:03:49,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:03:49,715 INFO L93 Difference]: Finished difference Result 243 states and 330 transitions. [2024-10-24 13:03:49,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 13:03:49,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 67 [2024-10-24 13:03:49,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:03:49,729 INFO L225 Difference]: With dead ends: 243 [2024-10-24 13:03:49,729 INFO L226 Difference]: Without dead ends: 129 [2024-10-24 13:03:49,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-24 13:03:49,742 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 141 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 13:03:49,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 117 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 13:03:49,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-10-24 13:03:49,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 114. [2024-10-24 13:03:49,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 64 states have (on average 1.1875) internal successors, (76), 65 states have internal predecessors, (76), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-10-24 13:03:49,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 143 transitions. [2024-10-24 13:03:49,810 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 143 transitions. Word has length 67 [2024-10-24 13:03:49,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:03:49,810 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 143 transitions. [2024-10-24 13:03:49,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 13:03:49,811 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2024-10-24 13:03:49,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-24 13:03:49,817 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:03:49,817 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:03:49,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 13:03:49,817 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:03:49,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:03:49,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1085459751, now seen corresponding path program 1 times [2024-10-24 13:03:49,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:03:49,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802919963] [2024-10-24 13:03:49,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:03:49,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:03:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:50,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:50,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:03:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:50,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:03:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:50,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:50,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:03:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:50,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 13:03:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:50,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 13:03:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:50,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 13:03:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:50,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:50,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 13:03:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:50,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 13:03:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:50,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:50,678 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 13:03:50,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:03:50,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802919963] [2024-10-24 13:03:50,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802919963] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:03:50,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:03:50,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 13:03:50,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480127255] [2024-10-24 13:03:50,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:03:50,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 13:03:50,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:03:50,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 13:03:50,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-24 13:03:50,684 INFO L87 Difference]: Start difference. First operand 114 states and 143 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2024-10-24 13:03:51,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:03:51,533 INFO L93 Difference]: Finished difference Result 173 states and 215 transitions. [2024-10-24 13:03:51,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 13:03:51,533 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) Word has length 67 [2024-10-24 13:03:51,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:03:51,536 INFO L225 Difference]: With dead ends: 173 [2024-10-24 13:03:51,538 INFO L226 Difference]: Without dead ends: 133 [2024-10-24 13:03:51,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-24 13:03:51,540 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 142 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 13:03:51,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 254 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 13:03:51,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-10-24 13:03:51,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 118. [2024-10-24 13:03:51,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 67 states have (on average 1.1791044776119404) internal successors, (79), 68 states have internal predecessors, (79), 34 states have call successors, (34), 15 states have call predecessors, (34), 16 states have return successors, (34), 34 states have call predecessors, (34), 33 states have call successors, (34) [2024-10-24 13:03:51,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 147 transitions. [2024-10-24 13:03:51,574 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 147 transitions. Word has length 67 [2024-10-24 13:03:51,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:03:51,575 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 147 transitions. [2024-10-24 13:03:51,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2024-10-24 13:03:51,576 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 147 transitions. [2024-10-24 13:03:51,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-24 13:03:51,578 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:03:51,578 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:03:51,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 13:03:51,579 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:03:51,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:03:51,579 INFO L85 PathProgramCache]: Analyzing trace with hash 944103392, now seen corresponding path program 1 times [2024-10-24 13:03:51,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:03:51,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397096488] [2024-10-24 13:03:51,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:03:51,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:03:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:52,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:52,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:03:52,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:52,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:03:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:52,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:52,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:03:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:52,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 13:03:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:52,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 13:03:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:52,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 13:03:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:52,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:52,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 13:03:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:52,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 13:03:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:52,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:52,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:03:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:52,319 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 13:03:52,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:03:52,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397096488] [2024-10-24 13:03:52,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397096488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:03:52,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:03:52,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 13:03:52,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747597577] [2024-10-24 13:03:52,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:03:52,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 13:03:52,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:03:52,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 13:03:52,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-24 13:03:52,323 INFO L87 Difference]: Start difference. First operand 118 states and 147 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 13:03:53,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:03:53,146 INFO L93 Difference]: Finished difference Result 185 states and 235 transitions. [2024-10-24 13:03:53,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 13:03:53,146 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 71 [2024-10-24 13:03:53,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:03:53,152 INFO L225 Difference]: With dead ends: 185 [2024-10-24 13:03:53,152 INFO L226 Difference]: Without dead ends: 149 [2024-10-24 13:03:53,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-10-24 13:03:53,153 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 153 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 13:03:53,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 305 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 13:03:53,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-10-24 13:03:53,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 122. [2024-10-24 13:03:53,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 71 states have internal predecessors, (82), 34 states have call successors, (34), 15 states have call predecessors, (34), 17 states have return successors, (35), 35 states have call predecessors, (35), 33 states have call successors, (35) [2024-10-24 13:03:53,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 151 transitions. [2024-10-24 13:03:53,184 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 151 transitions. Word has length 71 [2024-10-24 13:03:53,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:03:53,184 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 151 transitions. [2024-10-24 13:03:53,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 13:03:53,184 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 151 transitions. [2024-10-24 13:03:53,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-24 13:03:53,187 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:03:53,188 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:03:53,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 13:03:53,189 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:03:53,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:03:53,189 INFO L85 PathProgramCache]: Analyzing trace with hash -93011623, now seen corresponding path program 1 times [2024-10-24 13:03:53,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:03:53,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601316508] [2024-10-24 13:03:53,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:03:53,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:03:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:54,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:54,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:03:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:54,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:03:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:54,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:54,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:03:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:54,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 13:03:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:54,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 13:03:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:54,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 13:03:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:54,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:54,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 13:03:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:54,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 13:03:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:54,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:54,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:03:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:54,506 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 13:03:54,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:03:54,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601316508] [2024-10-24 13:03:54,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601316508] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:03:54,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:03:54,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 13:03:54,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446986048] [2024-10-24 13:03:54,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:03:54,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 13:03:54,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:03:54,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 13:03:54,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-10-24 13:03:54,510 INFO L87 Difference]: Start difference. First operand 122 states and 151 transitions. Second operand has 13 states, 11 states have (on average 2.727272727272727) internal successors, (30), 7 states have internal predecessors, (30), 4 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 13:03:55,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:03:55,914 INFO L93 Difference]: Finished difference Result 155 states and 196 transitions. [2024-10-24 13:03:55,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 13:03:55,915 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.727272727272727) internal successors, (30), 7 states have internal predecessors, (30), 4 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 72 [2024-10-24 13:03:55,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:03:55,920 INFO L225 Difference]: With dead ends: 155 [2024-10-24 13:03:55,921 INFO L226 Difference]: Without dead ends: 140 [2024-10-24 13:03:55,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-10-24 13:03:55,922 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 174 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 13:03:55,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 471 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 13:03:55,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-10-24 13:03:55,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 111. [2024-10-24 13:03:55,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 62 states have (on average 1.1451612903225807) internal successors, (71), 63 states have internal predecessors, (71), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-24 13:03:55,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 136 transitions. [2024-10-24 13:03:55,950 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 136 transitions. Word has length 72 [2024-10-24 13:03:55,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:03:55,951 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 136 transitions. [2024-10-24 13:03:55,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.727272727272727) internal successors, (30), 7 states have internal predecessors, (30), 4 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 13:03:55,951 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 136 transitions. [2024-10-24 13:03:55,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-24 13:03:55,955 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:03:55,955 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-10-24 13:03:55,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 13:03:55,955 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:03:55,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:03:55,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1693108673, now seen corresponding path program 1 times [2024-10-24 13:03:55,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:03:55,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211428743] [2024-10-24 13:03:55,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:03:55,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:03:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:03:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:03:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:03:56,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 13:03:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 13:03:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 13:03:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 13:03:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 13:03:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 13:03:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:03:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 13:03:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 13:03:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 13:03:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 13:03:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:56,746 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-10-24 13:03:56,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:03:56,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211428743] [2024-10-24 13:03:56,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211428743] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:03:56,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:03:56,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 13:03:56,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193752481] [2024-10-24 13:03:56,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:03:56,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 13:03:56,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:03:56,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 13:03:56,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 13:03:56,749 INFO L87 Difference]: Start difference. First operand 111 states and 136 transitions. Second operand has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 13:03:57,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:03:57,924 INFO L93 Difference]: Finished difference Result 176 states and 215 transitions. [2024-10-24 13:03:57,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 13:03:57,925 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 110 [2024-10-24 13:03:57,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:03:57,927 INFO L225 Difference]: With dead ends: 176 [2024-10-24 13:03:57,927 INFO L226 Difference]: Without dead ends: 126 [2024-10-24 13:03:57,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2024-10-24 13:03:57,929 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 202 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 13:03:57,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 280 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 13:03:57,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-10-24 13:03:57,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 115. [2024-10-24 13:03:57,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 65 states have (on average 1.1384615384615384) internal successors, (74), 66 states have internal predecessors, (74), 33 states have call successors, (33), 15 states have call predecessors, (33), 16 states have return successors, (33), 33 states have call predecessors, (33), 32 states have call successors, (33) [2024-10-24 13:03:57,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 140 transitions. [2024-10-24 13:03:57,955 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 140 transitions. Word has length 110 [2024-10-24 13:03:57,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:03:57,956 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 140 transitions. [2024-10-24 13:03:57,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 13:03:57,956 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 140 transitions. [2024-10-24 13:03:57,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 13:03:57,961 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:03:57,961 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-10-24 13:03:57,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 13:03:57,962 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:03:57,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:03:57,962 INFO L85 PathProgramCache]: Analyzing trace with hash 613585707, now seen corresponding path program 1 times [2024-10-24 13:03:57,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:03:57,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826115748] [2024-10-24 13:03:57,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:03:57,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:03:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:03:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:03:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:03:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 13:03:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 13:03:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 13:03:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 13:03:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 13:03:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 13:03:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:03:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 13:03:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 13:03:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:03:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 13:03:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 13:03:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 13:03:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:03:58,939 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-10-24 13:03:58,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:03:58,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826115748] [2024-10-24 13:03:58,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826115748] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:03:58,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:03:58,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 13:03:58,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131559791] [2024-10-24 13:03:58,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:03:58,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 13:03:58,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:03:58,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 13:03:58,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-24 13:03:58,945 INFO L87 Difference]: Start difference. First operand 115 states and 140 transitions. Second operand has 11 states, 10 states have (on average 4.8) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (23), 7 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2024-10-24 13:04:00,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:04:00,111 INFO L93 Difference]: Finished difference Result 186 states and 231 transitions. [2024-10-24 13:04:00,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 13:04:00,111 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (23), 7 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 114 [2024-10-24 13:04:00,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:04:00,113 INFO L225 Difference]: With dead ends: 186 [2024-10-24 13:04:00,114 INFO L226 Difference]: Without dead ends: 126 [2024-10-24 13:04:00,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2024-10-24 13:04:00,115 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 217 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 13:04:00,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 309 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 13:04:00,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-10-24 13:04:00,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 109. [2024-10-24 13:04:00,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 61 states have (on average 1.1147540983606556) internal successors, (68), 62 states have internal predecessors, (68), 32 states have call successors, (32), 15 states have call predecessors, (32), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-24 13:04:00,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 131 transitions. [2024-10-24 13:04:00,138 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 131 transitions. Word has length 114 [2024-10-24 13:04:00,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:04:00,138 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 131 transitions. [2024-10-24 13:04:00,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (23), 7 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2024-10-24 13:04:00,139 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 131 transitions. [2024-10-24 13:04:00,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-24 13:04:00,141 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:04:00,141 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-10-24 13:04:00,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 13:04:00,142 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:04:00,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:04:00,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1508861761, now seen corresponding path program 1 times [2024-10-24 13:04:00,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:04:00,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626561835] [2024-10-24 13:04:00,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:04:00,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:04:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:00,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:00,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:04:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:00,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:04:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:00,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:00,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:04:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:00,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 13:04:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:00,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 13:04:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:00,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 13:04:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:00,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 13:04:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:00,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 13:04:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:00,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:00,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 13:04:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:01,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:01,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:01,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:04:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:01,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 13:04:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:01,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 13:04:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:01,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:01,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:04:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:01,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:01,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 13:04:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:01,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 13:04:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:01,437 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-10-24 13:04:01,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:04:01,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626561835] [2024-10-24 13:04:01,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626561835] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:04:01,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:04:01,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 13:04:01,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369829527] [2024-10-24 13:04:01,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:04:01,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 13:04:01,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:04:01,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 13:04:01,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2024-10-24 13:04:01,439 INFO L87 Difference]: Start difference. First operand 109 states and 131 transitions. Second operand has 19 states, 16 states have (on average 3.0) internal successors, (48), 12 states have internal predecessors, (48), 3 states have call successors, (23), 6 states have call predecessors, (23), 5 states have return successors, (21), 6 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-24 13:04:03,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:04:03,524 INFO L93 Difference]: Finished difference Result 159 states and 193 transitions. [2024-10-24 13:04:03,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-24 13:04:03,525 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 3.0) internal successors, (48), 12 states have internal predecessors, (48), 3 states have call successors, (23), 6 states have call predecessors, (23), 5 states have return successors, (21), 6 states have call predecessors, (21), 2 states have call successors, (21) Word has length 120 [2024-10-24 13:04:03,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:04:03,527 INFO L225 Difference]: With dead ends: 159 [2024-10-24 13:04:03,527 INFO L226 Difference]: Without dead ends: 120 [2024-10-24 13:04:03,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=175, Invalid=1157, Unknown=0, NotChecked=0, Total=1332 [2024-10-24 13:04:03,529 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 145 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 1534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 13:04:03,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 627 Invalid, 1534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 13:04:03,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-10-24 13:04:03,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 113. [2024-10-24 13:04:03,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 64 states have (on average 1.125) internal successors, (72), 66 states have internal predecessors, (72), 32 states have call successors, (32), 15 states have call predecessors, (32), 16 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-10-24 13:04:03,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 136 transitions. [2024-10-24 13:04:03,547 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 136 transitions. Word has length 120 [2024-10-24 13:04:03,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:04:03,550 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 136 transitions. [2024-10-24 13:04:03,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 3.0) internal successors, (48), 12 states have internal predecessors, (48), 3 states have call successors, (23), 6 states have call predecessors, (23), 5 states have return successors, (21), 6 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-24 13:04:03,551 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 136 transitions. [2024-10-24 13:04:03,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-24 13:04:03,552 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:04:03,552 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-10-24 13:04:03,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 13:04:03,553 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:04:03,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:04:03,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1011098173, now seen corresponding path program 1 times [2024-10-24 13:04:03,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:04:03,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567731392] [2024-10-24 13:04:03,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:04:03,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:04:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:11,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:11,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:04:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:11,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:04:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:11,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:11,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:04:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:11,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 13:04:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:11,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 13:04:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:11,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 13:04:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:11,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 13:04:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:11,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 13:04:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:11,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:12,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 13:04:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:12,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:12,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:12,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:04:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:12,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 13:04:12,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:12,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 13:04:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:12,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:12,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:04:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:12,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:13,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 13:04:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:13,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 13:04:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:13,546 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-10-24 13:04:13,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:04:13,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567731392] [2024-10-24 13:04:13,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567731392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:04:13,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:04:13,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2024-10-24 13:04:13,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133417537] [2024-10-24 13:04:13,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:04:13,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-10-24 13:04:13,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:04:13,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-10-24 13:04:13,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1474, Unknown=0, NotChecked=0, Total=1560 [2024-10-24 13:04:13,550 INFO L87 Difference]: Start difference. First operand 113 states and 136 transitions. Second operand has 40 states, 29 states have (on average 1.793103448275862) internal successors, (52), 28 states have internal predecessors, (52), 11 states have call successors, (24), 7 states have call predecessors, (24), 9 states have return successors, (22), 13 states have call predecessors, (22), 10 states have call successors, (22) [2024-10-24 13:04:18,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:04:18,681 INFO L93 Difference]: Finished difference Result 182 states and 223 transitions. [2024-10-24 13:04:18,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-10-24 13:04:18,682 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 29 states have (on average 1.793103448275862) internal successors, (52), 28 states have internal predecessors, (52), 11 states have call successors, (24), 7 states have call predecessors, (24), 9 states have return successors, (22), 13 states have call predecessors, (22), 10 states have call successors, (22) Word has length 120 [2024-10-24 13:04:18,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:04:18,683 INFO L225 Difference]: With dead ends: 182 [2024-10-24 13:04:18,683 INFO L226 Difference]: Without dead ends: 135 [2024-10-24 13:04:18,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1119 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=508, Invalid=5654, Unknown=0, NotChecked=0, Total=6162 [2024-10-24 13:04:18,686 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 241 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 3438 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 3615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 3438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-24 13:04:18,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 1191 Invalid, 3615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 3438 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-24 13:04:18,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-10-24 13:04:18,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 131. [2024-10-24 13:04:18,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 75 states have (on average 1.12) internal successors, (84), 79 states have internal predecessors, (84), 36 states have call successors, (36), 16 states have call predecessors, (36), 19 states have return successors, (39), 35 states have call predecessors, (39), 35 states have call successors, (39) [2024-10-24 13:04:18,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 159 transitions. [2024-10-24 13:04:18,706 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 159 transitions. Word has length 120 [2024-10-24 13:04:18,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:04:18,707 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 159 transitions. [2024-10-24 13:04:18,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 29 states have (on average 1.793103448275862) internal successors, (52), 28 states have internal predecessors, (52), 11 states have call successors, (24), 7 states have call predecessors, (24), 9 states have return successors, (22), 13 states have call predecessors, (22), 10 states have call successors, (22) [2024-10-24 13:04:18,707 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 159 transitions. [2024-10-24 13:04:18,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-24 13:04:18,709 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:04:18,709 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-10-24 13:04:18,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 13:04:18,709 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:04:18,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:04:18,710 INFO L85 PathProgramCache]: Analyzing trace with hash 660001060, now seen corresponding path program 1 times [2024-10-24 13:04:18,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:04:18,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297270551] [2024-10-24 13:04:18,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:04:18,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:04:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:04:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:04:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:04:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 13:04:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 13:04:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 13:04:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 13:04:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 13:04:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:04:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 13:04:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:04:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 13:04:19,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 13:04:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:04:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 13:04:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 13:04:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:19,257 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-10-24 13:04:19,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:04:19,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297270551] [2024-10-24 13:04:19,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297270551] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:04:19,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:04:19,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 13:04:19,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437460338] [2024-10-24 13:04:19,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:04:19,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 13:04:19,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:04:19,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 13:04:19,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 13:04:19,261 INFO L87 Difference]: Start difference. First operand 131 states and 159 transitions. Second operand has 12 states, 10 states have (on average 4.9) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-24 13:04:20,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:04:20,156 INFO L93 Difference]: Finished difference Result 212 states and 252 transitions. [2024-10-24 13:04:20,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 13:04:20,156 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.9) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) Word has length 124 [2024-10-24 13:04:20,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:04:20,157 INFO L225 Difference]: With dead ends: 212 [2024-10-24 13:04:20,157 INFO L226 Difference]: Without dead ends: 119 [2024-10-24 13:04:20,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2024-10-24 13:04:20,158 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 180 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 13:04:20,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 330 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 13:04:20,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-10-24 13:04:20,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-10-24 13:04:20,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 68 states have (on average 1.1176470588235294) internal successors, (76), 71 states have internal predecessors, (76), 33 states have call successors, (33), 15 states have call predecessors, (33), 17 states have return successors, (34), 32 states have call predecessors, (34), 32 states have call successors, (34) [2024-10-24 13:04:20,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 143 transitions. [2024-10-24 13:04:20,174 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 143 transitions. Word has length 124 [2024-10-24 13:04:20,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:04:20,175 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 143 transitions. [2024-10-24 13:04:20,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.9) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-24 13:04:20,175 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 143 transitions. [2024-10-24 13:04:20,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 13:04:20,176 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:04:20,177 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-10-24 13:04:20,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 13:04:20,177 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:04:20,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:04:20,177 INFO L85 PathProgramCache]: Analyzing trace with hash -2142337169, now seen corresponding path program 1 times [2024-10-24 13:04:20,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:04:20,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766270747] [2024-10-24 13:04:20,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:04:20,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:04:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:20,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:04:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:04:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:04:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 13:04:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 13:04:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 13:04:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 13:04:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 13:04:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 13:04:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:04:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 13:04:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 13:04:20,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:04:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 13:04:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 13:04:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:20,800 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-10-24 13:04:20,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:04:20,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766270747] [2024-10-24 13:04:20,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766270747] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:04:20,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:04:20,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 13:04:20,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044802127] [2024-10-24 13:04:20,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:04:20,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 13:04:20,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:04:20,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 13:04:20,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-24 13:04:20,802 INFO L87 Difference]: Start difference. First operand 119 states and 143 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-24 13:04:21,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:04:21,641 INFO L93 Difference]: Finished difference Result 166 states and 200 transitions. [2024-10-24 13:04:21,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 13:04:21,641 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 121 [2024-10-24 13:04:21,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:04:21,643 INFO L225 Difference]: With dead ends: 166 [2024-10-24 13:04:21,644 INFO L226 Difference]: Without dead ends: 120 [2024-10-24 13:04:21,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-10-24 13:04:21,645 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 129 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 13:04:21,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 211 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 13:04:21,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-10-24 13:04:21,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-10-24 13:04:21,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 69 states have (on average 1.1159420289855073) internal successors, (77), 72 states have internal predecessors, (77), 33 states have call successors, (33), 15 states have call predecessors, (33), 17 states have return successors, (34), 32 states have call predecessors, (34), 32 states have call successors, (34) [2024-10-24 13:04:21,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 144 transitions. [2024-10-24 13:04:21,661 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 144 transitions. Word has length 121 [2024-10-24 13:04:21,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:04:21,663 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 144 transitions. [2024-10-24 13:04:21,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-24 13:04:21,664 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 144 transitions. [2024-10-24 13:04:21,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 13:04:21,665 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:04:21,665 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-10-24 13:04:21,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 13:04:21,665 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:04:21,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:04:21,665 INFO L85 PathProgramCache]: Analyzing trace with hash -400413377, now seen corresponding path program 1 times [2024-10-24 13:04:21,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:04:21,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146008404] [2024-10-24 13:04:21,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:04:21,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:04:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:27,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:27,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:04:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:27,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:04:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:27,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:27,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 13:04:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:27,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 13:04:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:27,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 13:04:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:27,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 13:04:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:27,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 13:04:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:27,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 13:04:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:28,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:28,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 13:04:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:28,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:28,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:28,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:04:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:28,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 13:04:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:28,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 13:04:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:28,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:28,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:04:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:28,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:04:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:28,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 13:04:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:29,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 13:04:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:30,034 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-10-24 13:04:30,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:04:30,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146008404] [2024-10-24 13:04:30,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146008404] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 13:04:30,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419571978] [2024-10-24 13:04:30,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:04:30,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 13:04:30,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 13:04:30,038 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 13:04:30,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 13:04:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:04:30,732 INFO L255 TraceCheckSpWp]: Trace formula consists of 2889 conjuncts, 123 conjuncts are in the unsatisfiable core [2024-10-24 13:04:30,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 13:04:32,037 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 [2024-10-24 13:04:32,225 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_z_2 Int) (v_y_2 Int)) (let ((.cse0 (* 18446744073709551616 v_y_2))) (and (<= 0 v_z_2) (<= 0 (+ v_z_2 .cse0)) (<= (+ v_z_2 1) (mod |c_#Ultimate.C_memcpy#4_size| 18446744073709551616)) (= (store |c_old(#memory_int#4)| |c_#Ultimate.C_memcpy#4_dest.base| (let ((.cse1 (+ v_z_2 |c_#Ultimate.C_memcpy#4_dest.offset| .cse0))) (store (select |c_old(#memory_int#4)| |c_#Ultimate.C_memcpy#4_dest.base|) .cse1 (select (select |c_#memory_int#4| |c_#Ultimate.C_memcpy#4_dest.base|) .cse1)))) |c_#memory_int#4|)))) is different from true [2024-10-24 13:04:32,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 13:04:32,853 INFO L349 Elim1Store]: treesize reduction 74, result has 29.5 percent of original size [2024-10-24 13:04:32,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 82 treesize of output 104 [2024-10-24 13:04:32,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 65 treesize of output 49 [2024-10-24 13:04:32,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 13:04:32,923 INFO L349 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2024-10-24 13:04:32,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 32 [2024-10-24 13:04:32,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 13:04:32,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2024-10-24 13:04:33,016 INFO L349 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2024-10-24 13:04:33,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 35 [2024-10-24 13:04:38,204 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 126 trivial. 1 not checked. [2024-10-24 13:04:38,204 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 13:04:40,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419571978] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 13:04:40,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 13:04:40,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 30] total 68 [2024-10-24 13:04:40,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011326804] [2024-10-24 13:04:40,810 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 13:04:40,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2024-10-24 13:04:40,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:04:40,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2024-10-24 13:04:40,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=5495, Unknown=2, NotChecked=148, Total=5852 [2024-10-24 13:04:40,814 INFO L87 Difference]: Start difference. First operand 120 states and 144 transitions. Second operand has 68 states, 47 states have (on average 2.234042553191489) internal successors, (105), 49 states have internal predecessors, (105), 17 states have call successors, (47), 10 states have call predecessors, (47), 15 states have return successors, (43), 18 states have call predecessors, (43), 15 states have call successors, (43)