./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_begin_harness_negated.i --full-output --preprocessor.use.memory.slicer true --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version abd6749d 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 ../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_begin_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 52acad1f86dde00e055ff68c84610663a6ee1e8b549596d6f4e68b872dd717ff --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 07:25:20,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 07:25:21,017 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 07:25:21,021 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 07:25:21,022 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 07:25:21,046 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 07:25:21,047 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 07:25:21,047 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 07:25:21,048 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 07:25:21,051 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 07:25:21,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 07:25:21,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 07:25:21,052 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 07:25:21,053 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 07:25:21,054 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 07:25:21,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 07:25:21,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 07:25:21,054 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 07:25:21,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 07:25:21,055 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 07:25:21,055 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 07:25:21,056 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 07:25:21,056 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 07:25:21,056 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 07:25:21,057 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 07:25:21,057 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 07:25:21,057 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 07:25:21,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 07:25:21,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:25:21,058 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 07:25:21,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 07:25:21,059 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 07:25:21,059 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 07:25:21,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 07:25:21,059 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 07:25:21,059 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 07:25:21,060 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 07:25:21,060 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 07:25:21,060 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 07:25:21,060 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52acad1f86dde00e055ff68c84610663a6ee1e8b549596d6f4e68b872dd717ff Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-23 07:25:21,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 07:25:21,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 07:25:21,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 07:25:21,303 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 07:25:21,304 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 07:25:21,305 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_begin_harness_negated.i [2023-11-23 07:25:22,412 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 07:25:22,732 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 07:25:22,732 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_begin_harness_negated.i [2023-11-23 07:25:22,762 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f094d08d/ab69a17e7ecd4bbd9061d015f5cb6958/FLAGb8c6ef58b [2023-11-23 07:25:22,775 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f094d08d/ab69a17e7ecd4bbd9061d015f5cb6958 [2023-11-23 07:25:22,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 07:25:22,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 07:25:22,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 07:25:22,781 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 07:25:22,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 07:25:22,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:25:22" (1/1) ... [2023-11-23 07:25:22,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c3c053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:22, skipping insertion in model container [2023-11-23 07:25:22,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:25:22" (1/1) ... [2023-11-23 07:25:22,859 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 07:25:23,099 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_begin_harness_negated.i[4495,4508] [2023-11-23 07:25:23,107 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_begin_harness_negated.i[4555,4568] [2023-11-23 07:25:23,574 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,576 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,576 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,576 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,577 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,594 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,597 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,601 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,601 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,602 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,603 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,603 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,603 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,796 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:25:23,797 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:25:23,798 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:25:23,799 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:25:23,801 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:25:23,801 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:25:23,802 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:25:23,802 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:25:23,803 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:25:23,806 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:25:23,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:25:23,917 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 07:25:23,932 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_begin_harness_negated.i[4495,4508] [2023-11-23 07:25:23,932 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_begin_harness_negated.i[4555,4568] [2023-11-23 07:25:23,969 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,970 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,970 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,970 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,971 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,985 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,986 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,987 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,987 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,987 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,988 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,988 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:23,989 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:25:24,018 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:25:24,020 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:25:24,021 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:25:24,021 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:25:24,022 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:25:24,022 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:25:24,022 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:25:24,023 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:25:24,024 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:25:24,024 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:25:24,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:25:24,198 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:25:24,198 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:25:24,198 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:25:24,199 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:25:24,199 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:25:24,199 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:25:24,199 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:25:24,199 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:25:24,199 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:25:24,199 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:25:24,199 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:25:24,200 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:25:24,200 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:25:24,200 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:25:24,200 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:25:24,200 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:25:24,206 INFO L206 MainTranslator]: Completed translation [2023-11-23 07:25:24,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:24 WrapperNode [2023-11-23 07:25:24,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 07:25:24,207 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 07:25:24,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 07:25:24,208 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 07:25:24,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:24" (1/1) ... [2023-11-23 07:25:24,256 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:24" (1/1) ... [2023-11-23 07:25:24,299 INFO L138 Inliner]: procedures = 678, calls = 1041, calls flagged for inlining = 52, calls inlined = 6, statements flattened = 141 [2023-11-23 07:25:24,300 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 07:25:24,301 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 07:25:24,301 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 07:25:24,301 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 07:25:24,322 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:24" (1/1) ... [2023-11-23 07:25:24,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:24" (1/1) ... [2023-11-23 07:25:24,326 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:24" (1/1) ... [2023-11-23 07:25:24,355 INFO L188 MemorySlicer]: Split 24 memory accesses to 3 slices as follows [2, 5, 17]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 6 writes are split as follows [0, 0, 6]. [2023-11-23 07:25:24,358 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:24" (1/1) ... [2023-11-23 07:25:24,358 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:24" (1/1) ... [2023-11-23 07:25:24,366 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:24" (1/1) ... [2023-11-23 07:25:24,376 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:24" (1/1) ... [2023-11-23 07:25:24,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:24" (1/1) ... [2023-11-23 07:25:24,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:24" (1/1) ... [2023-11-23 07:25:24,389 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 07:25:24,390 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 07:25:24,390 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 07:25:24,390 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 07:25:24,391 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:24" (1/1) ... [2023-11-23 07:25:24,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:25:24,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:25:24,414 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 07:25:24,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 07:25:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 07:25:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 07:25:24,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 07:25:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2023-11-23 07:25:24,459 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2023-11-23 07:25:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 07:25:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2023-11-23 07:25:24,459 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2023-11-23 07:25:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 07:25:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 07:25:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 07:25:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 07:25:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 07:25:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 07:25:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 07:25:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 07:25:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 07:25:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 07:25:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 07:25:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 07:25:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 07:25:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 07:25:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 07:25:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 07:25:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 07:25:24,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 07:25:24,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 07:25:24,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 07:25:24,631 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 07:25:24,633 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 07:25:24,814 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 07:25:24,858 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 07:25:24,858 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 07:25:24,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:25:24 BoogieIcfgContainer [2023-11-23 07:25:24,859 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 07:25:24,860 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 07:25:24,860 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 07:25:24,863 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 07:25:24,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:25:22" (1/3) ... [2023-11-23 07:25:24,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f0dbe18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:25:24, skipping insertion in model container [2023-11-23 07:25:24,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:24" (2/3) ... [2023-11-23 07:25:24,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f0dbe18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:25:24, skipping insertion in model container [2023-11-23 07:25:24,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:25:24" (3/3) ... [2023-11-23 07:25:24,865 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_begin_harness_negated.i [2023-11-23 07:25:24,880 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 07:25:24,881 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 07:25:24,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 07:25:24,923 INFO L357 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, mHoare=true, 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;@68b2e17e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 07:25:24,923 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 07:25:24,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 40 states have (on average 1.425) internal successors, (57), 41 states have internal predecessors, (57), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 07:25:24,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 07:25:24,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:25:24,939 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:25:24,939 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:25:24,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:25:24,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1769392804, now seen corresponding path program 1 times [2023-11-23 07:25:24,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:25:24,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890943353] [2023-11-23 07:25:24,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:25:24,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:25:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:25,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:25:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:25,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:25:25,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:25,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:25:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:25,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:25:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:25,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:25:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:25,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 07:25:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:25,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 07:25:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:25,524 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-23 07:25:25,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:25:25,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890943353] [2023-11-23 07:25:25,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890943353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:25:25,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:25:25,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 07:25:25,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332114771] [2023-11-23 07:25:25,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:25:25,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 07:25:25,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:25:25,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 07:25:25,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 07:25:25,568 INFO L87 Difference]: Start difference. First operand has 60 states, 40 states have (on average 1.425) internal successors, (57), 41 states have internal predecessors, (57), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 07:25:25,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:25:25,613 INFO L93 Difference]: Finished difference Result 114 states and 170 transitions. [2023-11-23 07:25:25,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 07:25:25,615 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2023-11-23 07:25:25,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:25:25,622 INFO L225 Difference]: With dead ends: 114 [2023-11-23 07:25:25,625 INFO L226 Difference]: Without dead ends: 58 [2023-11-23 07:25:25,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 07:25:25,632 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:25:25,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:25:25,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-23 07:25:25,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-23 07:25:25,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 40 states have internal predecessors, (52), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 07:25:25,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 77 transitions. [2023-11-23 07:25:25,664 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 77 transitions. Word has length 65 [2023-11-23 07:25:25,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:25:25,665 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 77 transitions. [2023-11-23 07:25:25,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 07:25:25,665 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 77 transitions. [2023-11-23 07:25:25,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 07:25:25,669 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:25:25,669 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:25:25,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 07:25:25,670 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:25:25,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:25:25,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1112295830, now seen corresponding path program 1 times [2023-11-23 07:25:25,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:25:25,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716762666] [2023-11-23 07:25:25,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:25:25,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:25:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:25,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:25:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:25,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:25:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:25,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:25:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:26,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:25:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:26,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:25:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:26,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 07:25:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 07:25:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:26,119 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-23 07:25:26,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:25:26,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716762666] [2023-11-23 07:25:26,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716762666] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:25:26,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637105658] [2023-11-23 07:25:26,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:25:26,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:25:26,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:25:26,137 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) [2023-11-23 07:25:26,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 07:25:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:26,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-23 07:25:26,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:25:26,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2023-11-23 07:25:26,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-11-23 07:25:26,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:25:26,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:25:26,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 35 [2023-11-23 07:25:26,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:25:26,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:25:26,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:25:26,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 40 [2023-11-23 07:25:27,093 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 07:25:27,094 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:25:27,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637105658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:25:27,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:25:27,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2023-11-23 07:25:27,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027531672] [2023-11-23 07:25:27,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:25:27,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:25:27,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:25:27,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:25:27,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:25:27,097 INFO L87 Difference]: Start difference. First operand 58 states and 77 transitions. Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 07:25:27,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:25:27,587 INFO L93 Difference]: Finished difference Result 160 states and 217 transitions. [2023-11-23 07:25:27,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:25:27,587 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2023-11-23 07:25:27,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:25:27,590 INFO L225 Difference]: With dead ends: 160 [2023-11-23 07:25:27,590 INFO L226 Difference]: Without dead ends: 112 [2023-11-23 07:25:27,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:25:27,591 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 44 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:25:27,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 326 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 07:25:27,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-23 07:25:27,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 110. [2023-11-23 07:25:27,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 75 states have (on average 1.36) internal successors, (102), 78 states have internal predecessors, (102), 24 states have call successors, (24), 9 states have call predecessors, (24), 10 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2023-11-23 07:25:27,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 150 transitions. [2023-11-23 07:25:27,605 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 150 transitions. Word has length 65 [2023-11-23 07:25:27,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:25:27,606 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 150 transitions. [2023-11-23 07:25:27,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 07:25:27,606 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 150 transitions. [2023-11-23 07:25:27,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 07:25:27,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:25:27,607 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 07:25:27,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 07:25:27,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:25:27,823 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:25:27,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:25:27,824 INFO L85 PathProgramCache]: Analyzing trace with hash -937092012, now seen corresponding path program 1 times [2023-11-23 07:25:27,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:25:27,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164620390] [2023-11-23 07:25:27,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:25:27,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:25:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:27,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:25:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:27,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:25:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:27,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:25:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:27,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:25:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:28,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:25:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:28,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 07:25:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:28,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 07:25:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:28,079 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-23 07:25:28,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:25:28,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164620390] [2023-11-23 07:25:28,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164620390] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:25:28,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105204656] [2023-11-23 07:25:28,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:25:28,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:25:28,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:25:28,081 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:25:28,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 07:25:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:28,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-23 07:25:28,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:25:28,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2023-11-23 07:25:28,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-11-23 07:25:28,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:25:28,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:25:28,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:25:28,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 40 [2023-11-23 07:25:28,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:25:28,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:25:28,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 35 [2023-11-23 07:25:29,607 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-23 07:25:29,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:25:29,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105204656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:25:29,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:25:29,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2023-11-23 07:25:29,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729491646] [2023-11-23 07:25:29,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:25:29,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:25:29,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:25:29,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:25:29,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:25:29,609 INFO L87 Difference]: Start difference. First operand 110 states and 150 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 07:25:30,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:25:30,271 INFO L93 Difference]: Finished difference Result 160 states and 214 transitions. [2023-11-23 07:25:30,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:25:30,272 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2023-11-23 07:25:30,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:25:30,273 INFO L225 Difference]: With dead ends: 160 [2023-11-23 07:25:30,274 INFO L226 Difference]: Without dead ends: 110 [2023-11-23 07:25:30,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 63 SyntacticMatches, 8 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:25:30,275 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 45 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:25:30,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 345 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:25:30,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-23 07:25:30,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 108. [2023-11-23 07:25:30,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 74 states have (on average 1.3513513513513513) internal successors, (100), 76 states have internal predecessors, (100), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-23 07:25:30,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 146 transitions. [2023-11-23 07:25:30,286 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 146 transitions. Word has length 65 [2023-11-23 07:25:30,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:25:30,286 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 146 transitions. [2023-11-23 07:25:30,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 07:25:30,286 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 146 transitions. [2023-11-23 07:25:30,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 07:25:30,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:25:30,288 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:25:30,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 07:25:30,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-23 07:25:30,523 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:25:30,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:25:30,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1684399024, now seen corresponding path program 1 times [2023-11-23 07:25:30,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:25:30,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598262805] [2023-11-23 07:25:30,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:25:30,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:25:30,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:30,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:25:30,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:30,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:25:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:30,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:25:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:30,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:25:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:30,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:25:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:30,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 07:25:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:30,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 07:25:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:30,680 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-23 07:25:30,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:25:30,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598262805] [2023-11-23 07:25:30,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598262805] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:25:30,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516676508] [2023-11-23 07:25:30,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:25:30,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:25:30,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:25:30,681 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:25:30,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 07:25:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:25:30,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-23 07:25:30,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:25:30,898 INFO L349 Elim1Store]: treesize reduction 66, result has 39.4 percent of original size [2023-11-23 07:25:30,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 128 [2023-11-23 07:25:30,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2023-11-23 07:25:30,920 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 07:25:30,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-23 07:25:30,952 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 07:25:30,953 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 41 treesize of output 13 [2023-11-23 07:25:30,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-23 07:25:33,022 WARN L876 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_10| Int)) (let ((.cse2 (+ |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_10| 24))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|) .cse2))) (and (<= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10| .cse0) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse1 (select |c_#memory_$Pointer$#2.base| .cse0))) (= .cse1 (select (store (store |c_#memory_$Pointer$#2.base| .cse0 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10| (store .cse1 .cse2 .cse0)) .cse0)))))))) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_10| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|) (+ |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_10| 24)) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|)))) is different from true [2023-11-23 07:25:35,266 WARN L876 $PredicateComparison]: unable to prove that (and (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_10| Int)) (let ((.cse2 (+ |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_10| 24))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|) .cse2))) (and (<= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10| .cse0) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse1 (select |c_#memory_$Pointer$#2.base| .cse0))) (= .cse1 (select (store (store |c_#memory_$Pointer$#2.base| .cse0 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10| (store .cse1 .cse2 .cse0)) .cse0)))))))) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_10| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|) (+ |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_10| 24)) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_11| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11|) (+ |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_11| 24)) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11|))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_11| Int)) (let ((.cse5 (+ |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_11| 24))) (let ((.cse3 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11|) .cse5))) (and (<= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11| .cse3) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse4 (select |c_#memory_$Pointer$#2.base| .cse3))) (= (select (store (store |c_#memory_$Pointer$#2.base| .cse3 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11| (store .cse4 .cse5 .cse3)) .cse3) .cse4))))))) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11|))))) is different from true [2023-11-23 07:25:39,639 WARN L876 $PredicateComparison]: unable to prove that (and (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_10| Int)) (let ((.cse2 (+ |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_10| 24))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|) .cse2))) (and (<= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10| .cse0) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse1 (select |c_#memory_$Pointer$#2.base| .cse0))) (= .cse1 (select (store (store |c_#memory_$Pointer$#2.base| .cse0 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10| (store .cse1 .cse2 .cse0)) .cse0)))))))) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_10| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|) (+ |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_10| 24)) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_4| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_4| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_4| 24)) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_4|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_4|))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_4| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_4|) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_4| Int)) (let ((.cse5 (+ |v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_4| 24))) (let ((.cse3 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_4|) .cse5))) (and (<= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_4| .cse3) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse4 (select |c_#memory_$Pointer$#2.base| .cse3))) (= (select (store (store |c_#memory_$Pointer$#2.base| .cse3 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_4| (store .cse4 .cse5 .cse3)) .cse3) .cse4)))))))))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_11| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11|) (+ |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_11| 24)) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11|))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_11| Int)) (let ((.cse8 (+ |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_11| 24))) (let ((.cse6 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11|) .cse8))) (and (<= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11| .cse6) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse7 (select |c_#memory_$Pointer$#2.base| .cse6))) (= (select (store (store |c_#memory_$Pointer$#2.base| .cse6 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11| (store .cse7 .cse8 .cse6)) .cse6) .cse7))))))) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11|))))) is different from true [2023-11-23 07:25:57,861 WARN L876 $PredicateComparison]: unable to prove that (and (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_10| Int)) (let ((.cse2 (+ |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_10| 24))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|) .cse2))) (and (<= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10| .cse0) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse1 (select |c_#memory_$Pointer$#2.base| .cse0))) (= .cse1 (select (store (store |c_#memory_$Pointer$#2.base| .cse0 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10| (store .cse1 .cse2 .cse0)) .cse0)))))))) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_10| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|) (+ |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_10| 24)) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_10|)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_4| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_4| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_4| 24)) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_4|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_4|))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_4| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_4|) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_4| Int)) (let ((.cse5 (+ |v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_4| 24))) (let ((.cse3 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_4|) .cse5))) (and (<= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_4| .cse3) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse4 (select |c_#memory_$Pointer$#2.base| .cse3))) (= (select (store (store |c_#memory_$Pointer$#2.base| .cse3 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_4| (store .cse4 .cse5 .cse3)) .cse3) .cse4)))))))))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_5| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_5| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_5|) (+ |v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_5| 24)) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_5|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_5|))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_5| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_5|) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_5| Int)) (let ((.cse8 (+ |v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_5| 24))) (let ((.cse6 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_5|) .cse8))) (and (<= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_5| .cse6) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse7 (select |c_#memory_$Pointer$#2.base| .cse6))) (= (select (store (store |c_#memory_$Pointer$#2.base| .cse6 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_5| (store .cse7 .cse8 .cse6)) .cse6) .cse7)))))))))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_6| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_6| Int)) (let ((.cse11 (+ |v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_6| 24))) (let ((.cse9 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_6|) .cse11))) (and (<= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_6| .cse9) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse10 (select |c_#memory_$Pointer$#2.base| .cse9))) (= (select (store (store |c_#memory_$Pointer$#2.base| .cse9 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_6| (store .cse10 .cse11 .cse9)) .cse9) .cse10))))))) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_6|))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_6| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_6| Int)) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_6| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_6|) (+ |v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_6| 24)))) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_6|)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_11| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11|) (+ |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_11| 24)) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11|))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_11| Int)) (let ((.cse14 (+ |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset_BEFORE_CALL_11| 24))) (let ((.cse12 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11|) .cse14))) (and (<= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11| .cse12) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse13 (select |c_#memory_$Pointer$#2.base| .cse12))) (= (select (store (store |c_#memory_$Pointer$#2.base| .cse12 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11| (store .cse13 .cse14 .cse12)) .cse12) .cse13))))))) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_11|))))) is different from true [2023-11-23 07:25:59,395 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 37 not checked. [2023-11-23 07:25:59,396 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:25:59,737 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 07:25:59,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 154 [2023-11-23 07:25:59,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 146 [2023-11-23 07:25:59,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 120 [2023-11-23 07:26:00,145 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-23 07:26:00,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516676508] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 07:26:00,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:26:00,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6, 19] total 31 [2023-11-23 07:26:00,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937484905] [2023-11-23 07:26:00,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:26:00,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:26:00,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:26:00,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:26:00,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=592, Unknown=34, NotChecked=212, Total=930 [2023-11-23 07:26:00,147 INFO L87 Difference]: Start difference. First operand 108 states and 146 transitions. Second operand has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 07:26:01,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:26:01,299 INFO L93 Difference]: Finished difference Result 183 states and 258 transitions. [2023-11-23 07:26:01,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:26:01,300 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2023-11-23 07:26:01,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:26:01,301 INFO L225 Difference]: With dead ends: 183 [2023-11-23 07:26:01,301 INFO L226 Difference]: Without dead ends: 124 [2023-11-23 07:26:01,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 28.1s TimeCoverageRelationStatistics Valid=115, Invalid=797, Unknown=34, NotChecked=244, Total=1190 [2023-11-23 07:26:01,303 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 47 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:26:01,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 406 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:26:01,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-23 07:26:01,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 110. [2023-11-23 07:26:01,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 76 states have (on average 1.3421052631578947) internal successors, (102), 78 states have internal predecessors, (102), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-23 07:26:01,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 148 transitions. [2023-11-23 07:26:01,314 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 148 transitions. Word has length 65 [2023-11-23 07:26:01,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:26:01,315 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 148 transitions. [2023-11-23 07:26:01,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 07:26:01,318 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 148 transitions. [2023-11-23 07:26:01,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 07:26:01,321 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:26:01,321 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:26:01,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 07:26:01,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:26:01,522 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:26:01,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:26:01,523 INFO L85 PathProgramCache]: Analyzing trace with hash -658626422, now seen corresponding path program 1 times [2023-11-23 07:26:01,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:26:01,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753815721] [2023-11-23 07:26:01,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:26:01,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:26:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:01,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:26:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:01,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:26:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:01,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:26:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:01,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:26:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:01,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:26:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:01,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 07:26:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:01,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 07:26:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:01,730 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-23 07:26:01,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:26:01,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753815721] [2023-11-23 07:26:01,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753815721] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:26:01,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195814844] [2023-11-23 07:26:01,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:26:01,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:26:01,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:26:01,745 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:26:01,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 07:26:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:01,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 46 conjunts are in the unsatisfiable core [2023-11-23 07:26:01,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:26:01,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2023-11-23 07:26:01,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-11-23 07:26:01,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:26:01,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:26:01,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 35 [2023-11-23 07:26:01,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:26:01,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:26:01,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:26:01,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 40 [2023-11-23 07:26:03,138 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-23 07:26:03,139 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:26:03,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195814844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:26:03,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:26:03,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2023-11-23 07:26:03,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737918021] [2023-11-23 07:26:03,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:26:03,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 07:26:03,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:26:03,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 07:26:03,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:26:03,140 INFO L87 Difference]: Start difference. First operand 110 states and 148 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 07:26:03,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:26:03,894 INFO L93 Difference]: Finished difference Result 181 states and 245 transitions. [2023-11-23 07:26:03,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 07:26:03,895 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2023-11-23 07:26:03,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:26:03,896 INFO L225 Difference]: With dead ends: 181 [2023-11-23 07:26:03,896 INFO L226 Difference]: Without dead ends: 117 [2023-11-23 07:26:03,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 62 SyntacticMatches, 8 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2023-11-23 07:26:03,897 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 76 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:26:03,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 494 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:26:03,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-23 07:26:03,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 112. [2023-11-23 07:26:03,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 78 states have (on average 1.3333333333333333) internal successors, (104), 80 states have internal predecessors, (104), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-23 07:26:03,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 150 transitions. [2023-11-23 07:26:03,916 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 150 transitions. Word has length 65 [2023-11-23 07:26:03,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:26:03,916 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 150 transitions. [2023-11-23 07:26:03,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 07:26:03,917 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 150 transitions. [2023-11-23 07:26:03,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 07:26:03,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:26:03,918 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:26:03,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-23 07:26:04,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:26:04,130 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:26:04,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:26:04,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1561333316, now seen corresponding path program 1 times [2023-11-23 07:26:04,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:26:04,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431841214] [2023-11-23 07:26:04,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:26:04,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:26:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:04,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:26:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:04,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:26:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:04,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:26:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:04,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:26:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:04,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:26:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:04,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 07:26:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:04,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 07:26:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:04,535 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-23 07:26:04,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:26:04,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431841214] [2023-11-23 07:26:04,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431841214] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:26:04,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578861849] [2023-11-23 07:26:04,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:26:04,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:26:04,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:26:04,537 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:26:04,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 07:26:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:04,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-23 07:26:04,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:26:04,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-11-23 07:26:05,135 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 07:26:05,135 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:26:05,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578861849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:26:05,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:26:05,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 18 [2023-11-23 07:26:05,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961079343] [2023-11-23 07:26:05,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:26:05,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 07:26:05,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:26:05,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 07:26:05,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-11-23 07:26:05,137 INFO L87 Difference]: Start difference. First operand 112 states and 150 transitions. Second operand has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-23 07:26:05,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:26:05,596 INFO L93 Difference]: Finished difference Result 191 states and 256 transitions. [2023-11-23 07:26:05,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:26:05,596 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2023-11-23 07:26:05,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:26:05,597 INFO L225 Difference]: With dead ends: 191 [2023-11-23 07:26:05,597 INFO L226 Difference]: Without dead ends: 121 [2023-11-23 07:26:05,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2023-11-23 07:26:05,598 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 79 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:26:05,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 469 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 07:26:05,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-23 07:26:05,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 114. [2023-11-23 07:26:05,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 80 states have (on average 1.325) internal successors, (106), 82 states have internal predecessors, (106), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-23 07:26:05,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 152 transitions. [2023-11-23 07:26:05,608 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 152 transitions. Word has length 65 [2023-11-23 07:26:05,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:26:05,609 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 152 transitions. [2023-11-23 07:26:05,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-23 07:26:05,609 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 152 transitions. [2023-11-23 07:26:05,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 07:26:05,610 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:26:05,610 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:26:05,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 07:26:05,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:26:05,827 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:26:05,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:26:05,828 INFO L85 PathProgramCache]: Analyzing trace with hash 343895422, now seen corresponding path program 1 times [2023-11-23 07:26:05,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:26:05,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577530015] [2023-11-23 07:26:05,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:26:05,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:26:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:05,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:26:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:05,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:26:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:05,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:26:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:05,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:26:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:05,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:26:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:05,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 07:26:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:05,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 07:26:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:05,966 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-23 07:26:05,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:26:05,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577530015] [2023-11-23 07:26:05,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577530015] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:26:05,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859629468] [2023-11-23 07:26:05,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:26:05,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:26:05,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:26:05,968 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:26:06,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 07:26:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:06,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 07:26:06,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:26:06,139 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 07:26:06,139 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:26:06,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859629468] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:26:06,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:26:06,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-11-23 07:26:06,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759719164] [2023-11-23 07:26:06,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:26:06,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:26:06,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:26:06,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:26:06,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:26:06,142 INFO L87 Difference]: Start difference. First operand 114 states and 152 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 07:26:06,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:26:06,192 INFO L93 Difference]: Finished difference Result 245 states and 336 transitions. [2023-11-23 07:26:06,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:26:06,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2023-11-23 07:26:06,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:26:06,193 INFO L225 Difference]: With dead ends: 245 [2023-11-23 07:26:06,193 INFO L226 Difference]: Without dead ends: 144 [2023-11-23 07:26:06,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:26:06,194 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 34 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:26:06,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 208 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:26:06,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-23 07:26:06,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2023-11-23 07:26:06,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 110 states have internal predecessors, (144), 26 states have call successors, (26), 9 states have call predecessors, (26), 11 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2023-11-23 07:26:06,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 198 transitions. [2023-11-23 07:26:06,216 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 198 transitions. Word has length 65 [2023-11-23 07:26:06,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:26:06,218 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 198 transitions. [2023-11-23 07:26:06,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 07:26:06,218 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 198 transitions. [2023-11-23 07:26:06,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-23 07:26:06,219 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:26:06,219 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:26:06,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 07:26:06,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:26:06,431 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:26:06,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:26:06,432 INFO L85 PathProgramCache]: Analyzing trace with hash -879428092, now seen corresponding path program 1 times [2023-11-23 07:26:06,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:26:06,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39233374] [2023-11-23 07:26:06,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:26:06,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:26:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:06,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:26:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:06,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:26:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:06,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 07:26:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:06,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-23 07:26:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:06,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 07:26:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:06,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 07:26:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:06,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 07:26:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:06,581 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-23 07:26:06,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:26:06,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39233374] [2023-11-23 07:26:06,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39233374] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:26:06,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616870062] [2023-11-23 07:26:06,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:26:06,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:26:06,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:26:06,583 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:26:06,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 07:26:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:26:06,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-23 07:26:06,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:26:06,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-11-23 07:26:06,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2023-11-23 07:26:06,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:26:06,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:26:06,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2023-11-23 07:26:06,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:26:06,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2023-11-23 07:26:06,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:26:06,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-11-23 07:26:06,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:26:06,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2023-11-23 07:26:06,985 INFO L349 Elim1Store]: treesize reduction 42, result has 20.8 percent of original size [2023-11-23 07:26:06,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 116 treesize of output 120 [2023-11-23 07:26:06,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:26:06,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:26:06,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 91 [2023-11-23 07:26:06,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:26:06,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:26:06,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 42 [2023-11-23 07:26:07,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2023-11-23 07:26:15,123 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 8 proven. 1 refuted. 37 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 07:26:15,123 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:26:15,515 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 24)) (.cse2 (+ |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset| 16))) (and (forall ((v_ArrVal_556 (Array Int Int))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_556))) (store .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse2) 0)) (forall ((|ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| Int) (v_ArrVal_554 (Array Int Int))) (= 0 (select (select (let ((.cse3 (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_554))) (store .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset|))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse2))))) is different from false [2023-11-23 07:26:15,539 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 24)) (.cse2 (+ |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset| 16))) (and (forall ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_25| Int)) (or (forall ((v_ArrVal_556 (Array Int Int))) (= (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_25|)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_25| v_ArrVal_556))) (store .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_25|))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse2) 0)) (< |c_#StackHeapBarrier| (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_25| 1)))) (forall ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_25| Int)) (or (forall ((v_ArrVal_551 Int) (v_subst_1 Int) (v_ArrVal_554 (Array Int Int))) (= (select (select (let ((.cse3 (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store (select |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| v_ArrVal_551)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_25| v_ArrVal_554))) (store .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_subst_1))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse2) 0)) (< |c_#StackHeapBarrier| (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_25| 1)))))) is different from false [2023-11-23 07:26:15,551 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 07:26:15,552 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 07:26:15,604 INFO L349 Elim1Store]: treesize reduction 86, result has 45.2 percent of original size [2023-11-23 07:26:15,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 297 treesize of output 284 [2023-11-23 07:26:15,614 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 07:26:15,614 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 07:26:15,669 INFO L349 Elim1Store]: treesize reduction 86, result has 45.2 percent of original size [2023-11-23 07:26:15,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 363 treesize of output 350 [2023-11-23 07:26:15,711 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 07:26:15,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 296 treesize of output 294 [2023-11-23 07:26:15,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 241 [2023-11-23 07:26:15,740 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 07:26:15,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 348 treesize of output 322 [2023-11-23 07:26:15,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 289 treesize of output 277 [2023-11-23 07:26:15,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2023-11-23 07:26:15,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2023-11-23 07:26:16,251 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 07:26:16,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 07:26:16,259 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 77 treesize of output 83 [2023-11-23 07:26:16,322 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 17 treesize of output 9 [2023-11-23 07:26:16,389 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 1 not checked. [2023-11-23 07:26:16,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616870062] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:26:16,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 07:26:16,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 19, 10] total 31 [2023-11-23 07:26:16,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401235715] [2023-11-23 07:26:16,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 07:26:16,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-23 07:26:16,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:26:16,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-23 07:26:16,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=663, Unknown=65, NotChecked=110, Total=930 [2023-11-23 07:26:16,391 INFO L87 Difference]: Start difference. First operand 144 states and 198 transitions. Second operand has 31 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 26 states have internal predecessors, (92), 12 states have call successors, (22), 7 states have call predecessors, (22), 9 states have return successors, (21), 11 states have call predecessors, (21), 12 states have call successors, (21) [2023-11-23 07:26:21,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:26:24,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:26:30,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:26:33,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:26:36,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:26:40,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:26:41,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:26:43,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:26:47,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:08,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:10,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:12,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:14,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:16,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:18,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:20,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:21,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:25,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:27,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:29,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:31,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:33,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:34,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:36,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:42,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:43,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:43,826 INFO L93 Difference]: Finished difference Result 383 states and 557 transitions. [2023-11-23 07:27:43,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-23 07:27:43,826 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 26 states have internal predecessors, (92), 12 states have call successors, (22), 7 states have call predecessors, (22), 9 states have return successors, (21), 11 states have call predecessors, (21), 12 states have call successors, (21) Word has length 66 [2023-11-23 07:27:43,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:43,829 INFO L225 Difference]: With dead ends: 383 [2023-11-23 07:27:43,829 INFO L226 Difference]: Without dead ends: 285 [2023-11-23 07:27:43,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 122 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=287, Invalid=2596, Unknown=205, NotChecked=218, Total=3306 [2023-11-23 07:27:43,830 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 99 mSDsluCounter, 1482 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 24 mSolverCounterUnsat, 587 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1600 SdHoareTripleChecker+Invalid, 2177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 587 IncrementalHoareTripleChecker+Unknown, 433 IncrementalHoareTripleChecker+Unchecked, 76.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:43,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1600 Invalid, 2177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1133 Invalid, 587 Unknown, 433 Unchecked, 76.2s Time] [2023-11-23 07:27:43,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-23 07:27:43,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 247. [2023-11-23 07:27:43,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 186 states have (on average 1.381720430107527) internal successors, (257), 195 states have internal predecessors, (257), 40 states have call successors, (40), 14 states have call predecessors, (40), 20 states have return successors, (62), 37 states have call predecessors, (62), 38 states have call successors, (62) [2023-11-23 07:27:43,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 359 transitions. [2023-11-23 07:27:43,881 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 359 transitions. Word has length 66 [2023-11-23 07:27:43,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:43,881 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 359 transitions. [2023-11-23 07:27:43,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 26 states have internal predecessors, (92), 12 states have call successors, (22), 7 states have call predecessors, (22), 9 states have return successors, (21), 11 states have call predecessors, (21), 12 states have call successors, (21) [2023-11-23 07:27:43,881 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 359 transitions. [2023-11-23 07:27:43,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-23 07:27:43,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:43,882 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 07:27:43,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 07:27:44,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:27:44,086 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:44,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:44,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1415332894, now seen corresponding path program 1 times [2023-11-23 07:27:44,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:44,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053458921] [2023-11-23 07:27:44,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:44,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:44,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:27:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:44,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:27:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:44,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:27:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:44,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-23 07:27:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:44,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-23 07:27:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:44,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 07:27:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:44,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:27:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:44,236 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-23 07:27:44,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:44,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053458921] [2023-11-23 07:27:44,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053458921] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:27:44,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974506103] [2023-11-23 07:27:44,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:44,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:27:44,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:27:44,253 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:27:44,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 07:27:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:44,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 07:27:44,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:27:44,486 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 07:27:44,487 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:27:44,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974506103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:44,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:27:44,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2023-11-23 07:27:44,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561546300] [2023-11-23 07:27:44,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:44,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:27:44,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:44,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:27:44,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:27:44,491 INFO L87 Difference]: Start difference. First operand 247 states and 359 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 07:27:44,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:44,613 INFO L93 Difference]: Finished difference Result 480 states and 699 transitions. [2023-11-23 07:27:44,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:27:44,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2023-11-23 07:27:44,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:44,632 INFO L225 Difference]: With dead ends: 480 [2023-11-23 07:27:44,632 INFO L226 Difference]: Without dead ends: 265 [2023-11-23 07:27:44,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:27:44,634 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 33 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:44,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 236 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:27:44,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-11-23 07:27:44,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 248. [2023-11-23 07:27:44,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 187 states have (on average 1.374331550802139) internal successors, (257), 196 states have internal predecessors, (257), 40 states have call successors, (40), 14 states have call predecessors, (40), 20 states have return successors, (62), 37 states have call predecessors, (62), 38 states have call successors, (62) [2023-11-23 07:27:44,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 359 transitions. [2023-11-23 07:27:44,673 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 359 transitions. Word has length 67 [2023-11-23 07:27:44,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:44,674 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 359 transitions. [2023-11-23 07:27:44,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 07:27:44,674 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 359 transitions. [2023-11-23 07:27:44,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-23 07:27:44,676 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:44,676 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 07:27:44,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-23 07:27:44,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-23 07:27:44,890 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:44,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:44,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1234342063, now seen corresponding path program 1 times [2023-11-23 07:27:44,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:44,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709736148] [2023-11-23 07:27:44,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:44,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:44,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:27:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:44,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:27:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:44,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:27:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:44,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 07:27:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:45,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 07:27:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:45,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 07:27:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:45,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:27:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:45,013 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-23 07:27:45,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:45,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709736148] [2023-11-23 07:27:45,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709736148] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:27:45,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938649596] [2023-11-23 07:27:45,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:45,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:27:45,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:27:45,015 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:27:45,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 07:27:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:45,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 07:27:45,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:27:45,200 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 07:27:45,201 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:27:45,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938649596] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:45,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:27:45,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2023-11-23 07:27:45,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262387430] [2023-11-23 07:27:45,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:45,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:27:45,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:45,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:27:45,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:27:45,203 INFO L87 Difference]: Start difference. First operand 248 states and 359 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 07:27:45,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:45,359 INFO L93 Difference]: Finished difference Result 524 states and 765 transitions. [2023-11-23 07:27:45,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:27:45,360 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2023-11-23 07:27:45,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:45,362 INFO L225 Difference]: With dead ends: 524 [2023-11-23 07:27:45,362 INFO L226 Difference]: Without dead ends: 307 [2023-11-23 07:27:45,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:27:45,363 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 57 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:45,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 278 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:27:45,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-11-23 07:27:45,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 252. [2023-11-23 07:27:45,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 191 states have (on average 1.3769633507853403) internal successors, (263), 200 states have internal predecessors, (263), 40 states have call successors, (40), 14 states have call predecessors, (40), 20 states have return successors, (62), 37 states have call predecessors, (62), 38 states have call successors, (62) [2023-11-23 07:27:45,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 365 transitions. [2023-11-23 07:27:45,392 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 365 transitions. Word has length 69 [2023-11-23 07:27:45,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:45,392 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 365 transitions. [2023-11-23 07:27:45,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 07:27:45,392 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 365 transitions. [2023-11-23 07:27:45,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 07:27:45,393 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:45,393 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 07:27:45,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 07:27:45,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 07:27:45,606 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:45,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:45,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1920131848, now seen corresponding path program 1 times [2023-11-23 07:27:45,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:45,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653231683] [2023-11-23 07:27:45,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:45,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:45,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:27:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:45,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:27:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:45,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:27:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:45,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 07:27:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:45,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 07:27:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:45,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:27:45,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:45,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 07:27:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:45,742 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-23 07:27:45,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:45,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653231683] [2023-11-23 07:27:45,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653231683] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:27:45,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806663495] [2023-11-23 07:27:45,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:45,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:27:45,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:27:45,743 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:27:45,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 07:27:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:45,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 07:27:45,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:27:45,922 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-23 07:27:45,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:27:45,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806663495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:45,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:27:45,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-23 07:27:45,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257690629] [2023-11-23 07:27:45,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:45,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 07:27:45,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:45,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 07:27:45,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:27:45,924 INFO L87 Difference]: Start difference. First operand 252 states and 365 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 07:27:45,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:45,963 INFO L93 Difference]: Finished difference Result 427 states and 640 transitions. [2023-11-23 07:27:45,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 07:27:45,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2023-11-23 07:27:45,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:45,964 INFO L225 Difference]: With dead ends: 427 [2023-11-23 07:27:45,964 INFO L226 Difference]: Without dead ends: 206 [2023-11-23 07:27:45,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:27:45,966 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 4 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:45,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 130 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:27:45,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-11-23 07:27:45,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 187. [2023-11-23 07:27:45,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 137 states have (on average 1.3503649635036497) internal successors, (185), 144 states have internal predecessors, (185), 35 states have call successors, (35), 10 states have call predecessors, (35), 14 states have return successors, (50), 32 states have call predecessors, (50), 33 states have call successors, (50) [2023-11-23 07:27:45,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 270 transitions. [2023-11-23 07:27:45,981 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 270 transitions. Word has length 70 [2023-11-23 07:27:45,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:45,981 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 270 transitions. [2023-11-23 07:27:45,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 07:27:45,982 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 270 transitions. [2023-11-23 07:27:45,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-23 07:27:45,982 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:45,983 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 07:27:46,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 07:27:46,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 07:27:46,195 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:46,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:46,195 INFO L85 PathProgramCache]: Analyzing trace with hash 642463203, now seen corresponding path program 1 times [2023-11-23 07:27:46,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:46,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314521705] [2023-11-23 07:27:46,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:46,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:46,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:27:46,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:46,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:27:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:46,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:27:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:46,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:27:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:46,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 07:27:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:46,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 07:27:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:46,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 07:27:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:46,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 07:27:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:46,506 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 07:27:46,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:46,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314521705] [2023-11-23 07:27:46,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314521705] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:27:46,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992886428] [2023-11-23 07:27:46,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:46,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:27:46,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:27:46,521 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:27:46,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 07:27:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:46,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 07:27:46,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:27:46,767 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 07:27:46,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:27:46,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992886428] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:46,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:27:46,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-11-23 07:27:46,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947954804] [2023-11-23 07:27:46,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:46,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:27:46,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:46,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:27:46,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:27:46,769 INFO L87 Difference]: Start difference. First operand 187 states and 270 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-23 07:27:46,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:46,837 INFO L93 Difference]: Finished difference Result 346 states and 493 transitions. [2023-11-23 07:27:46,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:27:46,838 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 77 [2023-11-23 07:27:46,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:46,839 INFO L225 Difference]: With dead ends: 346 [2023-11-23 07:27:46,839 INFO L226 Difference]: Without dead ends: 151 [2023-11-23 07:27:46,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:27:46,841 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 22 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:46,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 344 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:27:46,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-23 07:27:46,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-11-23 07:27:46,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 104 states have (on average 1.2596153846153846) internal successors, (131), 110 states have internal predecessors, (131), 33 states have call successors, (33), 10 states have call predecessors, (33), 13 states have return successors, (46), 30 states have call predecessors, (46), 31 states have call successors, (46) [2023-11-23 07:27:46,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 210 transitions. [2023-11-23 07:27:46,854 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 210 transitions. Word has length 77 [2023-11-23 07:27:46,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:46,854 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 210 transitions. [2023-11-23 07:27:46,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-23 07:27:46,854 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 210 transitions. [2023-11-23 07:27:46,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 07:27:46,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:46,855 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:27:46,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 07:27:47,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 07:27:47,068 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:47,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:47,068 INFO L85 PathProgramCache]: Analyzing trace with hash -390562381, now seen corresponding path program 1 times [2023-11-23 07:27:47,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:47,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715072185] [2023-11-23 07:27:47,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:47,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:47,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:27:47,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:47,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:27:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:47,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:27:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:47,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:27:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:47,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 07:27:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:47,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 07:27:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:47,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:27:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:47,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:27:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:47,305 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-23 07:27:47,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:47,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715072185] [2023-11-23 07:27:47,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715072185] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:27:47,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873706721] [2023-11-23 07:27:47,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:47,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:27:47,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:27:47,320 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:27:47,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 07:27:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:47,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 46 conjunts are in the unsatisfiable core [2023-11-23 07:27:47,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:27:47,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:27:47,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:27:48,124 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 07:27:48,125 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:27:48,440 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 10 proven. 20 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 07:27:48,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873706721] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:27:48,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 07:27:48,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 10] total 22 [2023-11-23 07:27:48,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4267228] [2023-11-23 07:27:48,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 07:27:48,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-23 07:27:48,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:48,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-23 07:27:48,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2023-11-23 07:27:48,444 INFO L87 Difference]: Start difference. First operand 151 states and 210 transitions. Second operand has 22 states, 21 states have (on average 5.238095238095238) internal successors, (110), 20 states have internal predecessors, (110), 7 states have call successors, (21), 3 states have call predecessors, (21), 7 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-11-23 07:27:50,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:52,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:27:52,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:52,662 INFO L93 Difference]: Finished difference Result 313 states and 438 transitions. [2023-11-23 07:27:52,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-23 07:27:52,662 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.238095238095238) internal successors, (110), 20 states have internal predecessors, (110), 7 states have call successors, (21), 3 states have call predecessors, (21), 7 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 79 [2023-11-23 07:27:52,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:52,663 INFO L225 Difference]: With dead ends: 313 [2023-11-23 07:27:52,663 INFO L226 Difference]: Without dead ends: 185 [2023-11-23 07:27:52,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 152 SyntacticMatches, 8 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=189, Invalid=1143, Unknown=0, NotChecked=0, Total=1332 [2023-11-23 07:27:52,665 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 88 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 38 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:52,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 629 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 658 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2023-11-23 07:27:52,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-23 07:27:52,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 152. [2023-11-23 07:27:52,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 112 states have (on average 1.2589285714285714) internal successors, (141), 117 states have internal predecessors, (141), 25 states have call successors, (25), 12 states have call predecessors, (25), 14 states have return successors, (33), 22 states have call predecessors, (33), 23 states have call successors, (33) [2023-11-23 07:27:52,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 199 transitions. [2023-11-23 07:27:52,678 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 199 transitions. Word has length 79 [2023-11-23 07:27:52,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:52,679 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 199 transitions. [2023-11-23 07:27:52,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.238095238095238) internal successors, (110), 20 states have internal predecessors, (110), 7 states have call successors, (21), 3 states have call predecessors, (21), 7 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-11-23 07:27:52,680 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 199 transitions. [2023-11-23 07:27:52,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-23 07:27:52,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:52,681 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:27:52,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 07:27:52,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 07:27:52,895 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:52,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:52,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1753529238, now seen corresponding path program 1 times [2023-11-23 07:27:52,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:52,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979445108] [2023-11-23 07:27:52,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:52,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:53,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:27:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:53,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:27:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:53,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 07:27:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:53,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:27:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:53,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 07:27:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:53,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 07:27:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:53,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-23 07:27:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:53,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 07:27:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:53,213 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-23 07:27:53,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:53,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979445108] [2023-11-23 07:27:53,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979445108] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:27:53,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312852183] [2023-11-23 07:27:53,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:53,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:27:53,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:27:53,229 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:27:53,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 07:27:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:53,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 66 conjunts are in the unsatisfiable core [2023-11-23 07:27:53,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:27:53,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:27:53,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:27:53,827 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 07:27:53,827 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:27:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-23 07:27:54,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312852183] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 07:27:54,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:27:54,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 14] total 24 [2023-11-23 07:27:54,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501396078] [2023-11-23 07:27:54,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:54,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:27:54,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:54,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:27:54,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2023-11-23 07:27:54,214 INFO L87 Difference]: Start difference. First operand 152 states and 199 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 07:27:54,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:54,307 INFO L93 Difference]: Finished difference Result 162 states and 211 transitions. [2023-11-23 07:27:54,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:27:54,307 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 80 [2023-11-23 07:27:54,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:54,308 INFO L225 Difference]: With dead ends: 162 [2023-11-23 07:27:54,308 INFO L226 Difference]: Without dead ends: 160 [2023-11-23 07:27:54,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2023-11-23 07:27:54,309 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 6 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:54,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 331 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:27:54,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-23 07:27:54,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 159. [2023-11-23 07:27:54,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 116 states have (on average 1.25) internal successors, (145), 122 states have internal predecessors, (145), 26 states have call successors, (26), 13 states have call predecessors, (26), 16 states have return successors, (37), 23 states have call predecessors, (37), 24 states have call successors, (37) [2023-11-23 07:27:54,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 208 transitions. [2023-11-23 07:27:54,324 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 208 transitions. Word has length 80 [2023-11-23 07:27:54,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:54,324 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 208 transitions. [2023-11-23 07:27:54,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 07:27:54,324 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 208 transitions. [2023-11-23 07:27:54,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-23 07:27:54,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:54,326 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 07:27:54,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 07:27:54,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 07:27:54,540 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:54,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:54,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1523842360, now seen corresponding path program 1 times [2023-11-23 07:27:54,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:54,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163692403] [2023-11-23 07:27:54,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:54,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:54,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:27:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:54,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:27:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:54,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 07:27:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:54,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:27:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:54,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 07:27:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:54,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 07:27:54,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:54,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-23 07:27:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:54,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 07:27:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:54,861 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-23 07:27:54,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:54,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163692403] [2023-11-23 07:27:54,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163692403] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:27:54,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728795713] [2023-11-23 07:27:54,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:54,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:27:54,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:27:54,877 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:27:54,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 07:27:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:55,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 07:27:55,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:27:55,197 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-23 07:27:55,197 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:27:55,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728795713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:55,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:27:55,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2023-11-23 07:27:55,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447610165] [2023-11-23 07:27:55,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:55,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:27:55,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:55,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:27:55,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:27:55,199 INFO L87 Difference]: Start difference. First operand 159 states and 208 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 07:27:55,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:55,330 INFO L93 Difference]: Finished difference Result 279 states and 358 transitions. [2023-11-23 07:27:55,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:27:55,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 82 [2023-11-23 07:27:55,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:55,332 INFO L225 Difference]: With dead ends: 279 [2023-11-23 07:27:55,332 INFO L226 Difference]: Without dead ends: 159 [2023-11-23 07:27:55,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:27:55,334 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 33 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:55,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 272 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:27:55,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-23 07:27:55,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2023-11-23 07:27:55,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 116 states have (on average 1.2327586206896552) internal successors, (143), 122 states have internal predecessors, (143), 26 states have call successors, (26), 13 states have call predecessors, (26), 16 states have return successors, (37), 23 states have call predecessors, (37), 24 states have call successors, (37) [2023-11-23 07:27:55,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 206 transitions. [2023-11-23 07:27:55,349 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 206 transitions. Word has length 82 [2023-11-23 07:27:55,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:55,349 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 206 transitions. [2023-11-23 07:27:55,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 07:27:55,349 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 206 transitions. [2023-11-23 07:27:55,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-23 07:27:55,350 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:55,350 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:27:55,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 07:27:55,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:27:55,564 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:55,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:55,564 INFO L85 PathProgramCache]: Analyzing trace with hash -282814507, now seen corresponding path program 2 times [2023-11-23 07:27:55,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:55,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920775382] [2023-11-23 07:27:55,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:55,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:55,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:27:55,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:55,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:27:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:55,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 07:27:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:55,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:27:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:55,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 07:27:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:55,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 07:27:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:55,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-23 07:27:55,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:55,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 07:27:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:55,860 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-23 07:27:55,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:55,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920775382] [2023-11-23 07:27:55,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920775382] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:27:55,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602822666] [2023-11-23 07:27:55,861 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:27:55,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:27:55,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:27:55,876 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:27:55,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 07:27:56,044 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 07:27:56,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:27:56,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 07:27:56,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:27:56,055 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-23 07:27:56,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:27:56,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602822666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:56,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:27:56,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2023-11-23 07:27:56,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622979090] [2023-11-23 07:27:56,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:56,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 07:27:56,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:56,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 07:27:56,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:27:56,057 INFO L87 Difference]: Start difference. First operand 159 states and 206 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 07:27:56,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:56,088 INFO L93 Difference]: Finished difference Result 269 states and 344 transitions. [2023-11-23 07:27:56,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 07:27:56,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 84 [2023-11-23 07:27:56,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:56,089 INFO L225 Difference]: With dead ends: 269 [2023-11-23 07:27:56,089 INFO L226 Difference]: Without dead ends: 155 [2023-11-23 07:27:56,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:27:56,090 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 5 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:56,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 125 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:27:56,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-11-23 07:27:56,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 137. [2023-11-23 07:27:56,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 97 states have (on average 1.2164948453608246) internal successors, (118), 101 states have internal predecessors, (118), 25 states have call successors, (25), 12 states have call predecessors, (25), 14 states have return successors, (32), 23 states have call predecessors, (32), 23 states have call successors, (32) [2023-11-23 07:27:56,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 175 transitions. [2023-11-23 07:27:56,103 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 175 transitions. Word has length 84 [2023-11-23 07:27:56,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:56,104 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 175 transitions. [2023-11-23 07:27:56,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 07:27:56,104 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 175 transitions. [2023-11-23 07:27:56,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-23 07:27:56,105 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:56,106 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 07:27:56,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-23 07:27:56,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-23 07:27:56,319 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:56,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:56,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1669669846, now seen corresponding path program 1 times [2023-11-23 07:27:56,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:56,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360767784] [2023-11-23 07:27:56,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:56,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:56,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:27:56,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:56,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:27:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:56,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 07:27:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:56,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:27:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:56,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 07:27:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:56,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 07:27:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:56,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-23 07:27:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:56,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 07:27:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:56,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:27:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:56,824 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-23 07:27:56,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:56,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360767784] [2023-11-23 07:27:56,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360767784] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:27:56,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411937906] [2023-11-23 07:27:56,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:56,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:27:56,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:27:56,841 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:27:56,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 07:27:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:57,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 72 conjunts are in the unsatisfiable core [2023-11-23 07:27:57,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:27:57,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-23 07:27:57,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-23 07:27:57,411 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-23 07:27:57,411 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:27:57,998 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 07:27:57,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411937906] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:27:57,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 07:27:57,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 14, 12] total 29 [2023-11-23 07:27:57,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7903455] [2023-11-23 07:27:57,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 07:27:58,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-23 07:27:58,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:58,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-23 07:27:58,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2023-11-23 07:27:58,006 INFO L87 Difference]: Start difference. First operand 137 states and 175 transitions. Second operand has 29 states, 25 states have (on average 4.16) internal successors, (104), 26 states have internal predecessors, (104), 8 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-11-23 07:27:59,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:59,099 INFO L93 Difference]: Finished difference Result 321 states and 444 transitions. [2023-11-23 07:27:59,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-23 07:27:59,099 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 4.16) internal successors, (104), 26 states have internal predecessors, (104), 8 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 86 [2023-11-23 07:27:59,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:59,100 INFO L225 Difference]: With dead ends: 321 [2023-11-23 07:27:59,100 INFO L226 Difference]: Without dead ends: 209 [2023-11-23 07:27:59,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=361, Invalid=2291, Unknown=0, NotChecked=0, Total=2652 [2023-11-23 07:27:59,102 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 244 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:59,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 864 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:27:59,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-11-23 07:27:59,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 168. [2023-11-23 07:27:59,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 124 states have (on average 1.2258064516129032) internal successors, (152), 130 states have internal predecessors, (152), 27 states have call successors, (27), 14 states have call predecessors, (27), 16 states have return successors, (36), 23 states have call predecessors, (36), 25 states have call successors, (36) [2023-11-23 07:27:59,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 215 transitions. [2023-11-23 07:27:59,117 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 215 transitions. Word has length 86 [2023-11-23 07:27:59,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:59,117 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 215 transitions. [2023-11-23 07:27:59,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 4.16) internal successors, (104), 26 states have internal predecessors, (104), 8 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-11-23 07:27:59,117 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 215 transitions. [2023-11-23 07:27:59,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-23 07:27:59,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:59,118 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:27:59,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-23 07:27:59,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 07:27:59,332 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:59,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:59,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1916837691, now seen corresponding path program 1 times [2023-11-23 07:27:59,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:59,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286282766] [2023-11-23 07:27:59,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:59,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:59,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:59,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:27:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:59,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:27:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:59,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 07:27:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:59,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:27:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:59,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-23 07:27:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:59,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 07:27:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:59,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 07:27:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:59,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 07:27:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:59,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 07:27:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:59,497 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-23 07:27:59,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:59,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286282766] [2023-11-23 07:27:59,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286282766] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:27:59,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039810142] [2023-11-23 07:27:59,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:59,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:27:59,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:27:59,525 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:27:59,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-23 07:27:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:59,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 81 conjunts are in the unsatisfiable core [2023-11-23 07:27:59,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:27:59,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:27:59,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2023-11-23 07:27:59,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:27:59,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:27:59,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2023-11-23 07:27:59,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2023-11-23 07:28:01,820 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_63| Int)) (<= (+ (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_63|) 24) 2) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_63|)) is different from true [2023-11-23 07:28:14,349 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-23 07:28:14,349 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:28:31,747 INFO L349 Elim1Store]: treesize reduction 63, result has 62.0 percent of original size [2023-11-23 07:28:31,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 4121 treesize of output 3916 [2023-11-23 07:28:31,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5013 treesize of output 4837 [2023-11-23 07:28:31,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2187 treesize of output 2161 [2023-11-23 07:28:31,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2161 treesize of output 2109 [2023-11-23 07:28:32,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 07:28:32,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2767 treesize of output 2607 [2023-11-23 07:28:32,803 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-11-23 07:28:35,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-23 07:28:35,734 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 07:28:35,735 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 48 treesize of output 42 [2023-11-23 07:28:35,748 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 07:28:35,749 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 14 treesize of output 8 [2023-11-23 07:28:35,926 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 5 proven. 26 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-23 07:28:35,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039810142] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:28:35,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 07:28:35,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 17, 21] total 40 [2023-11-23 07:28:35,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448473651] [2023-11-23 07:28:35,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 07:28:35,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-11-23 07:28:35,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:28:35,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-23 07:28:35,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1347, Unknown=13, NotChecked=74, Total=1560 [2023-11-23 07:28:35,929 INFO L87 Difference]: Start difference. First operand 168 states and 215 transitions. Second operand has 40 states, 34 states have (on average 3.735294117647059) internal successors, (127), 34 states have internal predecessors, (127), 10 states have call successors, (27), 4 states have call predecessors, (27), 9 states have return successors, (25), 8 states have call predecessors, (25), 10 states have call successors, (25) [2023-11-23 07:28:42,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:28:45,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:28:47,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 07:28:51,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 07:28:53,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 07:28:58,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:29:00,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:29:00,144 INFO L93 Difference]: Finished difference Result 311 states and 405 transitions. [2023-11-23 07:29:00,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-11-23 07:29:00,145 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 34 states have (on average 3.735294117647059) internal successors, (127), 34 states have internal predecessors, (127), 10 states have call successors, (27), 4 states have call predecessors, (27), 9 states have return successors, (25), 8 states have call predecessors, (25), 10 states have call successors, (25) Word has length 87 [2023-11-23 07:29:00,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:29:00,146 INFO L225 Difference]: With dead ends: 311 [2023-11-23 07:29:00,146 INFO L226 Difference]: Without dead ends: 222 [2023-11-23 07:29:00,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 41.1s TimeCoverageRelationStatistics Valid=515, Invalid=4167, Unknown=14, NotChecked=134, Total=4830 [2023-11-23 07:29:00,148 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 125 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 2078 mSolverCounterSat, 26 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 2355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2078 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 245 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:29:00,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1274 Invalid, 2355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2078 Invalid, 6 Unknown, 245 Unchecked, 14.1s Time] [2023-11-23 07:29:00,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2023-11-23 07:29:00,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 200. [2023-11-23 07:29:00,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 151 states have (on average 1.218543046357616) internal successors, (184), 158 states have internal predecessors, (184), 30 states have call successors, (30), 16 states have call predecessors, (30), 18 states have return successors, (37), 25 states have call predecessors, (37), 28 states have call successors, (37) [2023-11-23 07:29:00,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 251 transitions. [2023-11-23 07:29:00,170 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 251 transitions. Word has length 87 [2023-11-23 07:29:00,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:29:00,170 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 251 transitions. [2023-11-23 07:29:00,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 34 states have (on average 3.735294117647059) internal successors, (127), 34 states have internal predecessors, (127), 10 states have call successors, (27), 4 states have call predecessors, (27), 9 states have return successors, (25), 8 states have call predecessors, (25), 10 states have call successors, (25) [2023-11-23 07:29:00,170 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 251 transitions. [2023-11-23 07:29:00,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 07:29:00,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:29:00,171 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 07:29:00,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-23 07:29:00,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 07:29:00,383 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:29:00,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:29:00,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1987748593, now seen corresponding path program 1 times [2023-11-23 07:29:00,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:29:00,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207698667] [2023-11-23 07:29:00,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:29:00,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:29:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:00,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:29:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:00,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:29:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:00,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:29:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:00,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:29:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:00,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 07:29:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:00,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 07:29:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:00,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:29:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:00,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 07:29:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:00,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:29:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:00,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:29:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:00,550 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-23 07:29:00,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:29:00,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207698667] [2023-11-23 07:29:00,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207698667] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:29:00,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125727511] [2023-11-23 07:29:00,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:29:00,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:29:00,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:29:00,551 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:29:00,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-23 07:29:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:00,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 136 conjunts are in the unsatisfiable core [2023-11-23 07:29:00,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:29:00,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2023-11-23 07:29:00,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2023-11-23 07:29:02,665 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 31 proven. 37 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-23 07:29:02,666 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:29:15,465 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 07:29:15,549 INFO L349 Elim1Store]: treesize reduction 237, result has 40.2 percent of original size [2023-11-23 07:29:15,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 5574 treesize of output 5096 [2023-11-23 07:29:15,889 INFO L349 Elim1Store]: treesize reduction 375, result has 28.7 percent of original size [2023-11-23 07:29:15,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 29 case distinctions, treesize of input 10609 treesize of output 9733 [2023-11-23 07:29:16,175 INFO L349 Elim1Store]: treesize reduction 24, result has 60.7 percent of original size [2023-11-23 07:29:16,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2391 treesize of output 2325 [2023-11-23 07:29:16,271 INFO L349 Elim1Store]: treesize reduction 16, result has 67.3 percent of original size [2023-11-23 07:29:16,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 2203 treesize of output 2107 [2023-11-23 07:29:18,373 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 07:29:18,374 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 95 treesize of output 105 [2023-11-23 07:29:18,537 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-11-23 07:29:18,547 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-11-23 07:29:18,582 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 07:29:18,583 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 182 treesize of output 186 [2023-11-23 07:29:18,843 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 07:29:18,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 296 treesize of output 318 [2023-11-23 07:29:19,304 INFO L349 Elim1Store]: treesize reduction 8, result has 90.6 percent of original size [2023-11-23 07:29:19,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 262 treesize of output 294 [2023-11-23 07:29:21,062 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 24 proven. 51 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 07:29:21,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125727511] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:29:21,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 07:29:21,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 26, 31] total 60 [2023-11-23 07:29:21,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184867871] [2023-11-23 07:29:21,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 07:29:21,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2023-11-23 07:29:21,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:29:21,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2023-11-23 07:29:21,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=3307, Unknown=2, NotChecked=0, Total=3540 [2023-11-23 07:29:21,068 INFO L87 Difference]: Start difference. First operand 200 states and 251 transitions. Second operand has 60 states, 52 states have (on average 3.1153846153846154) internal successors, (162), 51 states have internal predecessors, (162), 16 states have call successors, (29), 4 states have call predecessors, (29), 14 states have return successors, (27), 16 states have call predecessors, (27), 16 states have call successors, (27) [2023-11-23 07:29:25,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 07:29:32,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:29:32,279 INFO L93 Difference]: Finished difference Result 389 states and 507 transitions. [2023-11-23 07:29:32,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-11-23 07:29:32,279 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 52 states have (on average 3.1153846153846154) internal successors, (162), 51 states have internal predecessors, (162), 16 states have call successors, (29), 4 states have call predecessors, (29), 14 states have return successors, (27), 16 states have call predecessors, (27), 16 states have call successors, (27) Word has length 104 [2023-11-23 07:29:32,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:29:32,280 INFO L225 Difference]: With dead ends: 389 [2023-11-23 07:29:32,280 INFO L226 Difference]: Without dead ends: 259 [2023-11-23 07:29:32,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 174 SyntacticMatches, 7 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3507 ImplicationChecksByTransitivity, 18.4s TimeCoverageRelationStatistics Valid=1169, Invalid=12401, Unknown=2, NotChecked=0, Total=13572 [2023-11-23 07:29:32,284 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 465 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 2928 mSolverCounterSat, 172 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 3101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 2928 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:29:32,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 1431 Invalid, 3101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 2928 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2023-11-23 07:29:32,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-11-23 07:29:32,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 210. [2023-11-23 07:29:32,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 157 states have (on average 1.2101910828025477) internal successors, (190), 167 states have internal predecessors, (190), 30 states have call successors, (30), 16 states have call predecessors, (30), 22 states have return successors, (41), 26 states have call predecessors, (41), 28 states have call successors, (41) [2023-11-23 07:29:32,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 261 transitions. [2023-11-23 07:29:32,311 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 261 transitions. Word has length 104 [2023-11-23 07:29:32,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:29:32,312 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 261 transitions. [2023-11-23 07:29:32,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 52 states have (on average 3.1153846153846154) internal successors, (162), 51 states have internal predecessors, (162), 16 states have call successors, (29), 4 states have call predecessors, (29), 14 states have return successors, (27), 16 states have call predecessors, (27), 16 states have call successors, (27) [2023-11-23 07:29:32,312 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 261 transitions. [2023-11-23 07:29:32,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-23 07:29:32,313 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:29:32,313 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 07:29:32,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-23 07:29:32,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:29:32,526 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:29:32,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:29:32,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1428592971, now seen corresponding path program 1 times [2023-11-23 07:29:32,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:29:32,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824969167] [2023-11-23 07:29:32,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:29:32,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:29:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:32,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:29:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:32,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:29:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:32,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:29:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:32,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:29:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:32,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 07:29:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:32,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 07:29:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:32,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:29:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:32,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 07:29:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:32,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 07:29:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:32,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:29:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:33,002 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 5 proven. 66 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-23 07:29:33,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:29:33,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824969167] [2023-11-23 07:29:33,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824969167] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:29:33,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047953636] [2023-11-23 07:29:33,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:29:33,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:29:33,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:29:33,021 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:29:33,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-23 07:29:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:29:33,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 07:29:33,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:29:33,426 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 07:29:33,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:29:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 30 proven. 23 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-23 07:29:33,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047953636] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:29:33,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 07:29:33,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 27 [2023-11-23 07:29:33,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093984085] [2023-11-23 07:29:33,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 07:29:33,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-23 07:29:33,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:29:33,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-23 07:29:33,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2023-11-23 07:29:33,679 INFO L87 Difference]: Start difference. First operand 210 states and 261 transitions. Second operand has 27 states, 24 states have (on average 6.208333333333333) internal successors, (149), 26 states have internal predecessors, (149), 13 states have call successors, (26), 2 states have call predecessors, (26), 7 states have return successors, (25), 9 states have call predecessors, (25), 13 states have call successors, (25) [2023-11-23 07:29:34,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:29:34,052 INFO L93 Difference]: Finished difference Result 414 states and 539 transitions. [2023-11-23 07:29:34,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 07:29:34,053 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 6.208333333333333) internal successors, (149), 26 states have internal predecessors, (149), 13 states have call successors, (26), 2 states have call predecessors, (26), 7 states have return successors, (25), 9 states have call predecessors, (25), 13 states have call successors, (25) Word has length 107 [2023-11-23 07:29:34,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:29:34,054 INFO L225 Difference]: With dead ends: 414 [2023-11-23 07:29:34,054 INFO L226 Difference]: Without dead ends: 213 [2023-11-23 07:29:34,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 216 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=185, Invalid=1005, Unknown=0, NotChecked=0, Total=1190 [2023-11-23 07:29:34,056 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:29:34,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 727 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:29:34,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-11-23 07:29:34,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 205. [2023-11-23 07:29:34,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 153 states have (on average 1.1830065359477124) internal successors, (181), 162 states have internal predecessors, (181), 31 states have call successors, (31), 16 states have call predecessors, (31), 20 states have return successors, (42), 26 states have call predecessors, (42), 29 states have call successors, (42) [2023-11-23 07:29:34,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 254 transitions. [2023-11-23 07:29:34,084 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 254 transitions. Word has length 107 [2023-11-23 07:29:34,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:29:34,085 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 254 transitions. [2023-11-23 07:29:34,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 6.208333333333333) internal successors, (149), 26 states have internal predecessors, (149), 13 states have call successors, (26), 2 states have call predecessors, (26), 7 states have return successors, (25), 9 states have call predecessors, (25), 13 states have call successors, (25) [2023-11-23 07:29:34,085 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 254 transitions. [2023-11-23 07:29:34,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-23 07:29:34,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:29:34,086 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:29:34,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-23 07:29:34,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:29:34,299 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:29:34,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:29:34,299 INFO L85 PathProgramCache]: Analyzing trace with hash 45985081, now seen corresponding path program 1 times [2023-11-23 07:29:34,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:29:34,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973241621] [2023-11-23 07:29:34,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:29:34,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:29:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 07:29:34,355 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 07:29:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 07:29:34,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 07:29:34,421 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 07:29:34,423 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 07:29:34,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-23 07:29:34,426 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:29:34,428 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 07:29:34,467 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret554 could not be translated [2023-11-23 07:29:34,469 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-23 07:29:34,469 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,470 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,470 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,470 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,470 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,470 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,471 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,471 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,471 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,471 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,471 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,471 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,471 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:29:34,473 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:29:34,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:29:34,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem311 [2023-11-23 07:29:34,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:29:34,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:29:34,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,479 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,479 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,480 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:29:34,480 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,480 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:29:34,480 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:29:34,480 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,480 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem317 [2023-11-23 07:29:34,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:29:34,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem316 [2023-11-23 07:29:34,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:29:34,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret324 could not be translated [2023-11-23 07:29:34,483 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated [2023-11-23 07:29:34,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated [2023-11-23 07:29:34,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,488 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,488 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,488 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,488 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,488 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,488 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,488 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,488 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,489 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,489 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:29:34,489 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,489 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,489 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,489 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,489 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,489 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:29:34,490 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,490 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,490 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:29:34,490 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,490 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,490 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,490 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:29:34,490 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem311 [2023-11-23 07:29:34,490 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,491 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,491 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:29:34,491 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,491 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,491 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:29:34,491 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,492 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:29:34,492 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:29:34,492 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,492 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem317 [2023-11-23 07:29:34,492 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:29:34,492 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:29:34,492 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,492 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem316 [2023-11-23 07:29:34,493 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret324 could not be translated [2023-11-23 07:29:34,495 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret328 could not be translated [2023-11-23 07:29:34,496 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret328 could not be translated [2023-11-23 07:29:34,496 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,496 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:29:34,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:29:34,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:29:34,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:29:34,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem311 [2023-11-23 07:29:34,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:29:34,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:29:34,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:29:34,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:29:34,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:29:34,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem317 [2023-11-23 07:29:34,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:29:34,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem316 [2023-11-23 07:29:34,503 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret324 could not be translated [2023-11-23 07:29:34,503 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret330 could not be translated [2023-11-23 07:29:34,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 07:29:34 BoogieIcfgContainer [2023-11-23 07:29:34,521 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 07:29:34,522 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 07:29:34,522 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 07:29:34,522 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 07:29:34,522 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:25:24" (3/4) ... [2023-11-23 07:29:34,523 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 07:29:34,532 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret554 could not be translated [2023-11-23 07:29:34,533 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-23 07:29:34,533 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,533 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,533 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,534 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,534 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,534 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,534 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,534 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,534 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,534 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,534 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,535 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,535 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,535 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,535 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,536 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,536 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,536 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,536 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,536 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,536 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:29:34,536 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:29:34,536 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,536 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,537 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,537 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:29:34,537 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,537 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,537 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:29:34,537 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,537 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,537 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,537 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem311 [2023-11-23 07:29:34,538 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:29:34,538 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,538 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,538 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,538 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:29:34,538 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,539 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:29:34,539 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:29:34,539 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,539 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem316 [2023-11-23 07:29:34,539 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem317 [2023-11-23 07:29:34,539 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:29:34,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:29:34,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret324 could not be translated [2023-11-23 07:29:34,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated [2023-11-23 07:29:34,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated [2023-11-23 07:29:34,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,543 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,543 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,543 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:29:34,543 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,543 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,543 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,543 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,543 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:29:34,544 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,544 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:29:34,544 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,544 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,544 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,545 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem311 [2023-11-23 07:29:34,545 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:29:34,545 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,545 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:29:34,545 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,545 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,545 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,546 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,546 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,546 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:29:34,546 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,546 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:29:34,546 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:29:34,547 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,547 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem317 [2023-11-23 07:29:34,547 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:29:34,547 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:29:34,548 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem316 [2023-11-23 07:29:34,548 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,548 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret324 could not be translated [2023-11-23 07:29:34,548 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret328 could not be translated [2023-11-23 07:29:34,549 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret328 could not be translated [2023-11-23 07:29:34,549 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,549 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,550 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,550 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,550 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,550 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,550 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,550 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,550 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,550 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,551 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,551 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,551 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,551 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,551 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,551 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,551 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,551 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,551 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,552 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:29:34,552 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,552 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,552 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:29:34,552 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,552 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:29:34,552 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,552 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,552 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,553 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:29:34,553 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem311 [2023-11-23 07:29:34,553 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:29:34,553 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:29:34,553 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:29:34,554 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:29:34,554 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:29:34,554 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:29:34,554 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,554 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:29:34,554 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,554 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:29:34,555 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:29:34,555 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,555 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:29:34,555 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem317 [2023-11-23 07:29:34,555 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:29:34,555 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:29:34,555 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem316 [2023-11-23 07:29:34,555 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret324 could not be translated [2023-11-23 07:29:34,557 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret330 could not be translated [2023-11-23 07:29:34,595 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-11-23 07:29:34,595 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 07:29:34,598 INFO L158 Benchmark]: Toolchain (without parser) took 251816.82ms. Allocated memory was 167.8MB in the beginning and 625.0MB in the end (delta: 457.2MB). Free memory was 89.1MB in the beginning and 238.5MB in the end (delta: -149.4MB). Peak memory consumption was 310.4MB. Max. memory is 16.1GB. [2023-11-23 07:29:34,598 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 167.8MB. Free memory is still 121.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 07:29:34,598 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1425.72ms. Allocated memory was 167.8MB in the beginning and 266.3MB in the end (delta: 98.6MB). Free memory was 88.7MB in the beginning and 194.6MB in the end (delta: -105.8MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. [2023-11-23 07:29:34,598 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.65ms. Allocated memory is still 266.3MB. Free memory was 194.6MB in the beginning and 189.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 07:29:34,599 INFO L158 Benchmark]: Boogie Preprocessor took 88.90ms. Allocated memory is still 266.3MB. Free memory was 189.3MB in the beginning and 185.1MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 07:29:34,600 INFO L158 Benchmark]: RCFGBuilder took 468.58ms. Allocated memory is still 266.3MB. Free memory was 185.1MB in the beginning and 156.8MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-23 07:29:34,600 INFO L158 Benchmark]: TraceAbstraction took 249661.28ms. Allocated memory was 266.3MB in the beginning and 625.0MB in the end (delta: 358.6MB). Free memory was 156.8MB in the beginning and 252.2MB in the end (delta: -95.4MB). Peak memory consumption was 262.1MB. Max. memory is 16.1GB. [2023-11-23 07:29:34,605 INFO L158 Benchmark]: Witness Printer took 73.26ms. Allocated memory is still 625.0MB. Free memory was 252.2MB in the beginning and 238.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 07:29:34,606 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 167.8MB. Free memory is still 121.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1425.72ms. Allocated memory was 167.8MB in the beginning and 266.3MB in the end (delta: 98.6MB). Free memory was 88.7MB in the beginning and 194.6MB in the end (delta: -105.8MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.65ms. Allocated memory is still 266.3MB. Free memory was 194.6MB in the beginning and 189.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.90ms. Allocated memory is still 266.3MB. Free memory was 189.3MB in the beginning and 185.1MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 468.58ms. Allocated memory is still 266.3MB. Free memory was 185.1MB in the beginning and 156.8MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 249661.28ms. Allocated memory was 266.3MB in the beginning and 625.0MB in the end (delta: 358.6MB). Free memory was 156.8MB in the beginning and 252.2MB in the end (delta: -95.4MB). Peak memory consumption was 262.1MB. Max. memory is 16.1GB. * Witness Printer took 73.26ms. Allocated memory is still 625.0MB. Free memory was 252.2MB in the beginning and 238.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret554 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem311 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem317 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem316 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret324 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem311 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem317 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem316 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret324 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret328 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret328 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem311 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem317 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem316 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret324 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret330 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret554 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem311 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem316 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem317 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret324 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem311 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem317 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem316 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret324 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret328 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret328 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem311 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem317 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem316 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret324 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret330 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 223]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6901-L6906] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6901-L6906] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6901-L6906] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6901-L6906] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6901-L6906] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6901-L6906] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7326] static __thread int tl_last_error = 0; [L7360] CALL aws_linked_list_begin_harness() [L7344] struct aws_linked_list list; [L7346] CALL ensure_linked_list_is_allocated(&list, 20) [L6743] CALL, EXPR nondet_uint64_t() VAL [s_can_fail_allocator_static={4:0}, tl_last_error=0] [L266] return __VERIFIER_nondet_ulong(); [L6743] RET, EXPR nondet_uint64_t() VAL [\old(max_length)=20, list={6:0}, list={6:0}, max_length=20, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L6743] size_t length = nondet_uint64_t(); [L6744] CALL assume_abort_if_not(length <= max_length) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L6744] RET assume_abort_if_not(length <= max_length) VAL [\old(max_length)=20, length=0, list={6:0}, list={6:0}, max_length=20, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L6746-L6747] list->head.prev = ((void *)0) [L6749-L6750] list->tail.next = ((void *)0) [L6753] struct aws_linked_list_node *curr = &list->head; [L6755] size_t i = 0; VAL [\old(max_length)=20, curr={6:0}, i=0, length=0, list={6:0}, list={6:0}, max_length=20, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L6755] COND FALSE !(i < length) VAL [\old(max_length)=20, curr={6:0}, i=0, length=0, list={6:0}, list={6:0}, max_length=20, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L6764] curr->next = &list->tail [L6765] list->tail.prev = curr [L7346] RET ensure_linked_list_is_allocated(&list, 20) [L7349] CALL, EXPR aws_linked_list_is_valid(&list) VAL [s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694] EXPR list && list->head.next VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694] EXPR list && list->head.next [L4694] EXPR list->head.next [L4694] EXPR list && list->head.next VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4695] EXPR list && list->head.next && list->head.prev == ((void *)0) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4695] EXPR list && list->head.next && list->head.prev == ((void *)0) [L4694] EXPR list->head.prev [L4694-L4695] EXPR list && list->head.next && list->head.prev == ((void *)0) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4696] EXPR list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4696] EXPR list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev [L4696] EXPR list->tail.prev [L4694-L4696] EXPR list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4697] list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4697] list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) [L4696] EXPR list->tail.next [L4694-L4697] list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4697] COND TRUE list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) [L4700] CALL, EXPR aws_linked_list_is_valid_deep(list) [L4734] COND FALSE !(!list) [L4740] const struct aws_linked_list_node *temp = &list->head; [L4743-L4746] _Bool head_reaches_tail = 0 ; VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:0}, tl_last_error=0] [L4750] COND TRUE \read(*temp) VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:0}, tl_last_error=0] [L4751] COND FALSE !(temp == &list->tail) VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:0}, tl_last_error=0] [L4756] CALL, EXPR aws_linked_list_node_next_is_valid(temp) VAL [node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next VAL [node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next [L4718] EXPR node->next [L4718] EXPR node && node->next VAL [node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next && node->next->prev == node VAL [node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next && node->next->prev == node [L4718] EXPR node->next [L4718] EXPR node->next->prev [L4718] EXPR node && node->next && node->next->prev == node VAL [node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] return node && node->next && node->next->prev == node; [L4756] RET, EXPR aws_linked_list_node_next_is_valid(temp) VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:0}, tl_last_error=0] [L4756] COND FALSE !(!aws_linked_list_node_next_is_valid(temp)) [L4762] EXPR temp->next [L4762] temp = temp->next [L4750] COND TRUE \read(*temp) VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:16}, tl_last_error=0] [L4751] COND TRUE temp == &list->tail [L4752-L4753] head_reaches_tail = 1 VAL [head_reaches_tail=1, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:16}, tl_last_error=0] [L4764] return head_reaches_tail; VAL [\result=1, head_reaches_tail=1, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:16}, tl_last_error=0] [L4700] RET, EXPR aws_linked_list_is_valid_deep(list) [L4700] return aws_linked_list_is_valid_deep(list); [L7349] RET, EXPR aws_linked_list_is_valid(&list) VAL [list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L7349] CALL assume_abort_if_not(aws_linked_list_is_valid(&list)) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L7349] RET assume_abort_if_not(aws_linked_list_is_valid(&list)) VAL [list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L7354] CALL aws_linked_list_begin(&list) [L4788] CALL, EXPR aws_linked_list_is_valid(list) VAL [s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694] EXPR list && list->head.next VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694] EXPR list && list->head.next [L4694] EXPR list->head.next [L4694] EXPR list && list->head.next VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4695] EXPR list && list->head.next && list->head.prev == ((void *)0) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4695] EXPR list && list->head.next && list->head.prev == ((void *)0) [L4694] EXPR list->head.prev [L4694-L4695] EXPR list && list->head.next && list->head.prev == ((void *)0) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4696] EXPR list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4696] EXPR list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev [L4696] EXPR list->tail.prev [L4694-L4696] EXPR list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4697] list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4697] list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) [L4696] EXPR list->tail.next [L4694-L4697] list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4697] COND TRUE list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) [L4700] CALL, EXPR aws_linked_list_is_valid_deep(list) [L4734] COND FALSE !(!list) [L4740] const struct aws_linked_list_node *temp = &list->head; [L4743-L4746] _Bool head_reaches_tail = 0 ; VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:0}, tl_last_error=0] [L4750] COND TRUE \read(*temp) VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:0}, tl_last_error=0] [L4751] COND FALSE !(temp == &list->tail) VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:0}, tl_last_error=0] [L4756] CALL, EXPR aws_linked_list_node_next_is_valid(temp) VAL [node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next VAL [node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next [L4718] EXPR node->next [L4718] EXPR node && node->next VAL [node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next && node->next->prev == node VAL [node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next && node->next->prev == node [L4718] EXPR node->next [L4718] EXPR node->next->prev [L4718] EXPR node && node->next && node->next->prev == node VAL [node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] return node && node->next && node->next->prev == node; [L4756] RET, EXPR aws_linked_list_node_next_is_valid(temp) VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:0}, tl_last_error=0] [L4756] COND FALSE !(!aws_linked_list_node_next_is_valid(temp)) [L4762] EXPR temp->next [L4762] temp = temp->next [L4750] COND TRUE \read(*temp) VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:16}, tl_last_error=0] [L4751] COND TRUE temp == &list->tail [L4752-L4753] head_reaches_tail = 1 VAL [head_reaches_tail=1, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:16}, tl_last_error=0] [L4764] return head_reaches_tail; VAL [\result=1, head_reaches_tail=1, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:16}, tl_last_error=0] [L4700] RET, EXPR aws_linked_list_is_valid_deep(list) [L4700] return aws_linked_list_is_valid_deep(list); [L4788] RET, EXPR aws_linked_list_is_valid(list) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4788] CALL assume_abort_if_not((aws_linked_list_is_valid(list))) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4788] RET assume_abort_if_not((aws_linked_list_is_valid(list))) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4789] EXPR list->head.next [L4789] struct aws_linked_list_node *rval = list->head.next; [L4790] CALL, EXPR aws_linked_list_is_valid(list) VAL [s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694] EXPR list && list->head.next VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694] EXPR list && list->head.next [L4694] EXPR list->head.next [L4694] EXPR list && list->head.next VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4695] EXPR list && list->head.next && list->head.prev == ((void *)0) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4695] EXPR list && list->head.next && list->head.prev == ((void *)0) [L4694] EXPR list->head.prev [L4694-L4695] EXPR list && list->head.next && list->head.prev == ((void *)0) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4696] EXPR list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4696] EXPR list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev [L4696] EXPR list->tail.prev [L4694-L4696] EXPR list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4697] list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4697] list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) [L4696] EXPR list->tail.next [L4694-L4697] list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4697] COND TRUE list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) [L4700] CALL, EXPR aws_linked_list_is_valid_deep(list) [L4734] COND FALSE !(!list) [L4740] const struct aws_linked_list_node *temp = &list->head; [L4743-L4746] _Bool head_reaches_tail = 0 ; VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:0}, tl_last_error=0] [L4750] COND TRUE \read(*temp) VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:0}, tl_last_error=0] [L4751] COND FALSE !(temp == &list->tail) VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:0}, tl_last_error=0] [L4756] CALL, EXPR aws_linked_list_node_next_is_valid(temp) VAL [node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next VAL [node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next [L4718] EXPR node->next [L4718] EXPR node && node->next VAL [node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next && node->next->prev == node VAL [node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next && node->next->prev == node [L4718] EXPR node->next [L4718] EXPR node->next->prev [L4718] EXPR node && node->next && node->next->prev == node VAL [node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] return node && node->next && node->next->prev == node; [L4756] RET, EXPR aws_linked_list_node_next_is_valid(temp) VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:0}, tl_last_error=0] [L4756] COND FALSE !(!aws_linked_list_node_next_is_valid(temp)) [L4762] EXPR temp->next [L4762] temp = temp->next [L4750] COND TRUE \read(*temp) VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:16}, tl_last_error=0] [L4751] COND TRUE temp == &list->tail [L4752-L4753] head_reaches_tail = 1 VAL [head_reaches_tail=1, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:16}, tl_last_error=0] [L4764] return head_reaches_tail; VAL [\result=1, head_reaches_tail=1, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:16}, tl_last_error=0] [L4700] RET, EXPR aws_linked_list_is_valid_deep(list) [L4700] return aws_linked_list_is_valid_deep(list); [L4790] RET, EXPR aws_linked_list_is_valid(list) VAL [list={6:0}, list={6:0}, rval={6:16}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4790] CALL __VERIFIER_assert(!((aws_linked_list_is_valid(list)))) VAL [\old(cond)=0, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L223] COND TRUE !cond VAL [\old(cond)=0, cond=0, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L223] reach_error() VAL [\old(cond)=0, cond=0, s_can_fail_allocator_static={4:0}, tl_last_error=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 249.5s, OverallIterations: 21, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 133.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 595 mSolverCounterUnknown, 1734 SdHoareTripleChecker+Valid, 102.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1610 mSDsluCounter, 10561 SdHoareTripleChecker+Invalid, 101.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 678 IncrementalHoareTripleChecker+Unchecked, 9278 mSDsCounter, 479 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10182 IncrementalHoareTripleChecker+Invalid, 11934 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 479 mSolverCounterUnsat, 1283 mSDtfsCounter, 10182 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2747 GetRequests, 2164 SyntacticMatches, 38 SemanticMatches, 545 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 5981 ImplicationChecksByTransitivity, 108.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=10, InterpolantAutomatonStates: 326, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 20 MinimizatonAttempts, 331 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 107.6s InterpolantComputationTime, 3071 NumberOfCodeBlocks, 3018 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 3588 ConstructedInterpolants, 381 QuantifiedInterpolants, 62435 SizeOfPredicates, 231 NumberOfNonLiveVariables, 6835 ConjunctsInSsa, 711 ConjunctsInUnsatCore, 47 InterpolantComputations, 14 PerfectInterpolantSequences, 1911/2461 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-23 07:29:34,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE