./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_push_back_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_push_back_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 039075241b3e03e605f8b837c5703607fb327de3ebb7fe9349592ff866b009f9 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 07:30:07,102 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 07:30:07,167 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 07:30:07,172 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 07:30:07,172 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 07:30:07,194 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 07:30:07,195 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 07:30:07,195 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 07:30:07,196 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 07:30:07,199 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 07:30:07,199 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 07:30:07,199 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 07:30:07,200 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 07:30:07,201 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 07:30:07,201 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 07:30:07,201 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 07:30:07,201 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 07:30:07,202 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 07:30:07,202 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 07:30:07,202 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 07:30:07,202 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 07:30:07,203 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 07:30:07,203 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 07:30:07,203 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 07:30:07,204 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 07:30:07,204 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 07:30:07,204 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 07:30:07,204 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 07:30:07,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:30:07,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 07:30:07,206 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 07:30:07,206 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 07:30:07,206 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 07:30:07,206 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 07:30:07,206 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 07:30:07,207 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 07:30:07,207 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 07:30:07,207 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 07:30:07,207 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 07:30:07,207 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 039075241b3e03e605f8b837c5703607fb327de3ebb7fe9349592ff866b009f9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-23 07:30:07,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 07:30:07,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 07:30:07,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 07:30:07,436 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 07:30:07,436 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 07:30:07,437 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_push_back_harness_negated.i [2023-11-23 07:30:08,518 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 07:30:08,844 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 07:30:08,844 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_push_back_harness_negated.i [2023-11-23 07:30:08,876 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d73b5a44/53b26715640d47e791734e35a02f0c0d/FLAG2f05cc0ab [2023-11-23 07:30:08,894 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d73b5a44/53b26715640d47e791734e35a02f0c0d [2023-11-23 07:30:08,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 07:30:08,898 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 07:30:08,926 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 07:30:08,927 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 07:30:08,933 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 07:30:08,934 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:30:08" (1/1) ... [2023-11-23 07:30:08,934 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ca5eaad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:30:08, skipping insertion in model container [2023-11-23 07:30:08,934 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:30:08" (1/1) ... [2023-11-23 07:30:09,007 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 07:30:09,166 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_push_back_harness_negated.i[4499,4512] [2023-11-23 07:30:09,173 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_push_back_harness_negated.i[4559,4572] [2023-11-23 07:30:09,639 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:09,641 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:09,641 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:09,642 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:09,644 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:09,651 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:09,652 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:09,653 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:09,654 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:09,655 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:09,656 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:09,656 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:09,657 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:09,880 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:30:09,881 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:30:09,881 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:30:09,882 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:30:09,883 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:30:09,883 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:30:09,883 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:30:09,884 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:30:09,884 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:30:09,884 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:30:10,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:30:10,026 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 07:30:10,045 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_push_back_harness_negated.i[4499,4512] [2023-11-23 07:30:10,045 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_push_back_harness_negated.i[4559,4572] [2023-11-23 07:30:10,080 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:10,084 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:10,084 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:10,084 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:10,085 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:10,098 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:10,100 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:10,101 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:10,102 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:10,103 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:10,105 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:10,105 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:10,106 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:30:10,133 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:30:10,134 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:30:10,135 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:30:10,135 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:30:10,140 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:30:10,140 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:30:10,141 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:30:10,142 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:30:10,143 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:30:10,143 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:30:10,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:30:10,377 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:30:10,377 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:30:10,377 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:30:10,377 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:30:10,377 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:30:10,378 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:30:10,378 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:30:10,378 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:30:10,378 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:30:10,378 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:30:10,378 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:30:10,378 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:30:10,378 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:30:10,378 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:30:10,379 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:30:10,379 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:30:10,384 INFO L206 MainTranslator]: Completed translation [2023-11-23 07:30:10,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:30:10 WrapperNode [2023-11-23 07:30:10,385 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 07:30:10,386 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 07:30:10,386 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 07:30:10,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 07:30:10,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:30:10" (1/1) ... [2023-11-23 07:30:10,442 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:30:10" (1/1) ... [2023-11-23 07:30:10,488 INFO L138 Inliner]: procedures = 678, calls = 1048, calls flagged for inlining = 52, calls inlined = 6, statements flattened = 149 [2023-11-23 07:30:10,489 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 07:30:10,489 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 07:30:10,490 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 07:30:10,490 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 07:30:10,498 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:30:10" (1/1) ... [2023-11-23 07:30:10,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:30:10" (1/1) ... [2023-11-23 07:30:10,511 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:30:10" (1/1) ... [2023-11-23 07:30:10,530 INFO L188 MemorySlicer]: Split 35 memory accesses to 3 slices as follows [2, 5, 28]. 80 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 10 writes are split as follows [0, 0, 10]. [2023-11-23 07:30:10,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:30:10" (1/1) ... [2023-11-23 07:30:10,536 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:30:10" (1/1) ... [2023-11-23 07:30:10,550 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:30:10" (1/1) ... [2023-11-23 07:30:10,562 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:30:10" (1/1) ... [2023-11-23 07:30:10,568 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:30:10" (1/1) ... [2023-11-23 07:30:10,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:30:10" (1/1) ... [2023-11-23 07:30:10,579 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 07:30:10,582 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 07:30:10,583 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 07:30:10,583 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 07:30:10,584 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:30:10" (1/1) ... [2023-11-23 07:30:10,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:30:10,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:30:10,609 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 07:30:10,637 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 07:30:10,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 07:30:10,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 07:30:10,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 07:30:10,659 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2023-11-23 07:30:10,659 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2023-11-23 07:30:10,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 07:30:10,659 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2023-11-23 07:30:10,659 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2023-11-23 07:30:10,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 07:30:10,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 07:30:10,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 07:30:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 07:30:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_insert_before [2023-11-23 07:30:10,661 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_insert_before [2023-11-23 07:30:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 07:30:10,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 07:30:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 07:30:10,661 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 07:30:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 07:30:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 07:30:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 07:30:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 07:30:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 07:30:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 07:30:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 07:30:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 07:30:10,663 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 07:30:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2023-11-23 07:30:10,663 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2023-11-23 07:30:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 07:30:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 07:30:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 07:30:10,853 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 07:30:10,855 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 07:30:11,123 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 07:30:11,150 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 07:30:11,151 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 07:30:11,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:30:11 BoogieIcfgContainer [2023-11-23 07:30:11,151 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 07:30:11,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 07:30:11,153 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 07:30:11,156 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 07:30:11,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:30:08" (1/3) ... [2023-11-23 07:30:11,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7edffd6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:30:11, skipping insertion in model container [2023-11-23 07:30:11,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:30:10" (2/3) ... [2023-11-23 07:30:11,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7edffd6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:30:11, skipping insertion in model container [2023-11-23 07:30:11,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:30:11" (3/3) ... [2023-11-23 07:30:11,158 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_push_back_harness_negated.i [2023-11-23 07:30:11,172 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 07:30:11,173 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 07:30:11,215 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 07:30:11,227 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;@23e7e567, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 07:30:11,228 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 07:30:11,232 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 54 states have (on average 1.3518518518518519) internal successors, (73), 55 states have internal predecessors, (73), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-23 07:30:11,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-23 07:30:11,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:30:11,244 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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 07:30:11,245 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:30:11,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:30:11,251 INFO L85 PathProgramCache]: Analyzing trace with hash -187605365, now seen corresponding path program 1 times [2023-11-23 07:30:11,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:30:11,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801454024] [2023-11-23 07:30:11,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:30:11,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:30:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:11,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:30:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:11,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:30:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:11,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:30:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:11,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:30:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:11,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:30:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:11,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-23 07:30:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:11,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 07:30:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:11,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:30:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:11,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:30:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:11,834 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 07:30:11,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:30:11,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801454024] [2023-11-23 07:30:11,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801454024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:30:11,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:30:11,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:30:11,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866107188] [2023-11-23 07:30:11,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:30:11,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:30:11,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:30:11,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:30:11,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:30:11,868 INFO L87 Difference]: Start difference. First operand has 91 states, 54 states have (on average 1.3518518518518519) internal successors, (73), 55 states have internal predecessors, (73), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 07:30:11,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:30:11,981 INFO L93 Difference]: Finished difference Result 188 states and 290 transitions. [2023-11-23 07:30:11,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:30:11,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 68 [2023-11-23 07:30:11,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:30:11,990 INFO L225 Difference]: With dead ends: 188 [2023-11-23 07:30:11,990 INFO L226 Difference]: Without dead ends: 101 [2023-11-23 07:30:11,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:30:11,999 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 21 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:30:12,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 338 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:30:12,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-23 07:30:12,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 91. [2023-11-23 07:30:12,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 55 states have (on average 1.2727272727272727) internal successors, (70), 56 states have internal predecessors, (70), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-23 07:30:12,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 125 transitions. [2023-11-23 07:30:12,042 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 125 transitions. Word has length 68 [2023-11-23 07:30:12,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:30:12,043 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 125 transitions. [2023-11-23 07:30:12,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 07:30:12,045 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 125 transitions. [2023-11-23 07:30:12,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-23 07:30:12,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:30:12,049 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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 07:30:12,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 07:30:12,049 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:30:12,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:30:12,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1532137449, now seen corresponding path program 1 times [2023-11-23 07:30:12,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:30:12,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543193498] [2023-11-23 07:30:12,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:30:12,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:30:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:30:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:30:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:30:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:30:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:30:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-23 07:30:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 07:30:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:30:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:30:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,322 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 07:30:12,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:30:12,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543193498] [2023-11-23 07:30:12,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543193498] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:30:12,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:30:12,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:30:12,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168635722] [2023-11-23 07:30:12,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:30:12,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:30:12,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:30:12,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:30:12,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:30:12,327 INFO L87 Difference]: Start difference. First operand 91 states and 125 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 07:30:12,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:30:12,396 INFO L93 Difference]: Finished difference Result 180 states and 253 transitions. [2023-11-23 07:30:12,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:30:12,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 68 [2023-11-23 07:30:12,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:30:12,398 INFO L225 Difference]: With dead ends: 180 [2023-11-23 07:30:12,399 INFO L226 Difference]: Without dead ends: 99 [2023-11-23 07:30:12,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:30:12,400 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 12 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:30:12,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 332 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:30:12,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-23 07:30:12,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93. [2023-11-23 07:30:12,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 57 states have (on average 1.263157894736842) internal successors, (72), 58 states have internal predecessors, (72), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-23 07:30:12,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 127 transitions. [2023-11-23 07:30:12,407 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 127 transitions. Word has length 68 [2023-11-23 07:30:12,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:30:12,408 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 127 transitions. [2023-11-23 07:30:12,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 07:30:12,408 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 127 transitions. [2023-11-23 07:30:12,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-23 07:30:12,425 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:30:12,425 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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 07:30:12,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 07:30:12,425 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:30:12,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:30:12,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1547656167, now seen corresponding path program 1 times [2023-11-23 07:30:12,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:30:12,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547779553] [2023-11-23 07:30:12,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:30:12,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:30:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:30:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:30:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:30:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:30:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:30:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-23 07:30:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 07:30:12,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:30:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:30:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,616 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 07:30:12,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:30:12,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547779553] [2023-11-23 07:30:12,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547779553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:30:12,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:30:12,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:30:12,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620424291] [2023-11-23 07:30:12,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:30:12,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:30:12,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:30:12,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:30:12,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:30:12,618 INFO L87 Difference]: Start difference. First operand 93 states and 127 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 07:30:12,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:30:12,668 INFO L93 Difference]: Finished difference Result 180 states and 251 transitions. [2023-11-23 07:30:12,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:30:12,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 68 [2023-11-23 07:30:12,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:30:12,669 INFO L225 Difference]: With dead ends: 180 [2023-11-23 07:30:12,670 INFO L226 Difference]: Without dead ends: 97 [2023-11-23 07:30:12,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:30:12,671 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 3 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:30:12,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 331 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:30:12,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-23 07:30:12,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2023-11-23 07:30:12,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 60 states have (on average 1.25) internal successors, (75), 61 states have internal predecessors, (75), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-23 07:30:12,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 130 transitions. [2023-11-23 07:30:12,677 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 130 transitions. Word has length 68 [2023-11-23 07:30:12,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:30:12,677 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 130 transitions. [2023-11-23 07:30:12,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 07:30:12,677 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 130 transitions. [2023-11-23 07:30:12,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-23 07:30:12,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:30:12,678 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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 07:30:12,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 07:30:12,678 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:30:12,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:30:12,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1900744549, now seen corresponding path program 1 times [2023-11-23 07:30:12,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:30:12,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017576209] [2023-11-23 07:30:12,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:30:12,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:30:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:30:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:30:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:30:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:30:12,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:30:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-23 07:30:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 07:30:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:30:12,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:30:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:12,990 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 07:30:12,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:30:12,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017576209] [2023-11-23 07:30:12,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017576209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:30:12,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:30:12,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:30:12,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295831766] [2023-11-23 07:30:12,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:30:12,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:30:12,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:30:12,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:30:12,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:30:12,993 INFO L87 Difference]: Start difference. First operand 96 states and 130 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 07:30:13,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:30:13,060 INFO L93 Difference]: Finished difference Result 189 states and 256 transitions. [2023-11-23 07:30:13,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:30:13,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 68 [2023-11-23 07:30:13,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:30:13,064 INFO L225 Difference]: With dead ends: 189 [2023-11-23 07:30:13,064 INFO L226 Difference]: Without dead ends: 94 [2023-11-23 07:30:13,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:30:13,066 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 11 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:30:13,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 406 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:30:13,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-23 07:30:13,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-11-23 07:30:13,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 59 states have internal predecessors, (72), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-23 07:30:13,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 127 transitions. [2023-11-23 07:30:13,082 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 127 transitions. Word has length 68 [2023-11-23 07:30:13,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:30:13,083 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 127 transitions. [2023-11-23 07:30:13,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 07:30:13,083 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 127 transitions. [2023-11-23 07:30:13,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-23 07:30:13,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:30:13,087 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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 07:30:13,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 07:30:13,087 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:30:13,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:30:13,087 INFO L85 PathProgramCache]: Analyzing trace with hash 52547987, now seen corresponding path program 1 times [2023-11-23 07:30:13,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:30:13,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813716274] [2023-11-23 07:30:13,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:30:13,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:30:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:13,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:30:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:13,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:30:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:13,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:30:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:13,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:30:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:13,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 07:30:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:13,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-23 07:30:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:13,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 07:30:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:13,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:30:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:13,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:30:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:13,408 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-23 07:30:13,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:30:13,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813716274] [2023-11-23 07:30:13,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813716274] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:30:13,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401715725] [2023-11-23 07:30:13,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:30:13,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:30:13,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:30:13,411 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 07:30:13,438 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 07:30:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:13,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-23 07:30:13,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:30:13,674 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 07:30:13,685 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 07:30:13,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:30:13,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:30:13,759 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 34 treesize of output 22 [2023-11-23 07:30:13,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:30:13,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:30:13,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:30:13,771 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 35 treesize of output 41 [2023-11-23 07:30:14,301 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-23 07:30:14,301 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:30:14,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401715725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:30:14,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:30:14,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2023-11-23 07:30:14,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982608243] [2023-11-23 07:30:14,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:30:14,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:30:14,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:30:14,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:30:14,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:30:14,303 INFO L87 Difference]: Start difference. First operand 94 states and 127 transitions. Second operand has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 07:30:14,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:30:14,795 INFO L93 Difference]: Finished difference Result 232 states and 312 transitions. [2023-11-23 07:30:14,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:30:14,796 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 68 [2023-11-23 07:30:14,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:30:14,798 INFO L225 Difference]: With dead ends: 232 [2023-11-23 07:30:14,798 INFO L226 Difference]: Without dead ends: 146 [2023-11-23 07:30:14,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 79 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 07:30:14,799 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 68 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:30:14,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 399 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 07:30:14,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-23 07:30:14,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 145. [2023-11-23 07:30:14,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 97 states have (on average 1.268041237113402) internal successors, (123), 99 states have internal predecessors, (123), 36 states have call successors, (36), 12 states have call predecessors, (36), 11 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-23 07:30:14,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 194 transitions. [2023-11-23 07:30:14,809 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 194 transitions. Word has length 68 [2023-11-23 07:30:14,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:30:14,809 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 194 transitions. [2023-11-23 07:30:14,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 07:30:14,810 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 194 transitions. [2023-11-23 07:30:14,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-23 07:30:14,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:30:14,811 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:30:14,823 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 07:30:15,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:30:15,023 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:30:15,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:30:15,024 INFO L85 PathProgramCache]: Analyzing trace with hash 429987315, now seen corresponding path program 1 times [2023-11-23 07:30:15,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:30:15,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012840972] [2023-11-23 07:30:15,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:30:15,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:30:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:15,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:30:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:15,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:30:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:15,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 07:30:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:15,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-23 07:30:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:15,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 07:30:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:15,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 07:30:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:15,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 07:30:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:15,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 07:30:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:15,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-23 07:30:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:15,289 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-23 07:30:15,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:30:15,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012840972] [2023-11-23 07:30:15,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012840972] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:30:15,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068325030] [2023-11-23 07:30:15,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:30:15,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:30:15,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:30:15,291 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 07:30:15,292 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 07:30:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:15,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-23 07:30:15,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:30:15,506 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 07:30:15,520 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 07:30:15,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:30:15,557 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 07:30:15,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:30:15,562 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 18 treesize of output 13 [2023-11-23 07:30:15,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:30:15,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:30:15,568 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 07:30:15,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:30:15,573 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 34 treesize of output 25 [2023-11-23 07:30:15,655 INFO L349 Elim1Store]: treesize reduction 58, result has 7.9 percent of original size [2023-11-23 07:30:15,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 129 treesize of output 118 [2023-11-23 07:30:15,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:30:15,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 32 [2023-11-23 07:30:15,675 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 24 treesize of output 23 [2023-11-23 07:30:16,336 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-23 07:30:16,336 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:30:16,577 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 24)) (.cse2 (+ 16 |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.offset|))) (and (forall ((|ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| Int) (v_ArrVal_586 Int)) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store (select |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|) |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 16))))) (store .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_586))) |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.base|) .cse2) 0)) (forall ((|ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| Int) (v_ArrVal_588 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_588) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select (store |c_#memory_$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|) |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|)) |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_push_back_harness_~#list~0#1.base|) .cse2) 0)))) is different from false [2023-11-23 07:30:16,595 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 07:30:16,596 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 96 treesize of output 95 [2023-11-23 07:30:16,603 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 07:30:16,603 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 90 [2023-11-23 07:30:16,616 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 6 treesize of output 4 [2023-11-23 07:30:16,646 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 6 [2023-11-23 07:30:16,682 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 24)) (.cse2 (+ 16 |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.offset|))) (and (forall ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_20| Int)) (or (< |c_#StackHeapBarrier| (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_20| 1)) (forall ((v_arrayElimArr_5 (Array Int Int)) (v_subst_1 Int) (v_ArrVal_588 (Array Int Int))) (or (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_20|)))) (store (store .cse0 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_20| v_ArrVal_588) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select (store .cse0 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_20| v_arrayElimArr_5) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_20|))) |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.base|) .cse2) 0) (not (= |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (select v_arrayElimArr_5 v_subst_1))))))) (forall ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_20| Int)) (or (< |c_#StackHeapBarrier| (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_20| 1)) (forall ((v_arrayElimArr_4 (Array Int Int)) (v_subst_2 Int)) (or (forall ((v_ArrVal_586 Int) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_14| Int)) (= (select (select (let ((.cse3 (store (store |c_#memory_$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_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_14|)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_20| v_arrayElimArr_4))) (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_ArrVal_586))) |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.base|) .cse2) 0)) (not (= (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 16) (select v_arrayElimArr_4 v_subst_2))))))))) is different from false [2023-11-23 07:30:16,721 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 07:30:16,722 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 07:30:16,808 INFO L349 Elim1Store]: treesize reduction 86, result has 45.2 percent of original size [2023-11-23 07:30:16,809 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 311 treesize of output 298 [2023-11-23 07:30:16,831 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 07:30:16,832 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 234 treesize of output 234 [2023-11-23 07:30:16,842 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 07:30:16,843 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 07:30:16,906 INFO L349 Elim1Store]: treesize reduction 86, result has 45.2 percent of original size [2023-11-23 07:30:16,907 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 249 treesize of output 278 [2023-11-23 07:30:16,931 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 07:30:16,932 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 352 treesize of output 328 [2023-11-23 07:30:16,952 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 07:30:16,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 287 treesize of output 284 [2023-11-23 07:30:16,976 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 07:30:16,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 297 treesize of output 298 [2023-11-23 07:30:16,993 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 287 treesize of output 283 [2023-11-23 07:30:17,616 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 07:30:17,702 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 07:30:17,703 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 07:30:17,718 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 07:30:17,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 97 [2023-11-23 07:30:17,817 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 07:30:17,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 76 treesize of output 72 [2023-11-23 07:30:17,874 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 1 not checked. [2023-11-23 07:30:17,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068325030] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:30:17,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 07:30:17,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 9] total 21 [2023-11-23 07:30:17,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704573676] [2023-11-23 07:30:17,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 07:30:17,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-23 07:30:17,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:30:17,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-23 07:30:17,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=293, Unknown=6, NotChecked=70, Total=420 [2023-11-23 07:30:17,877 INFO L87 Difference]: Start difference. First operand 145 states and 194 transitions. Second operand has 21 states, 18 states have (on average 4.166666666666667) internal successors, (75), 19 states have internal predecessors, (75), 7 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (22), 5 states have call predecessors, (22), 7 states have call successors, (22) [2023-11-23 07:30:20,179 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 07:30:22,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:30:24,574 WARN L539 Checker$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 07:30:26,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:30:28,611 WARN L539 Checker$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 07:30:32,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:30:34,715 WARN L539 Checker$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 07:30:36,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:30:38,808 WARN L539 Checker$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 07:30:40,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:30:42,856 WARN L539 Checker$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 07:30:43,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:30:43,151 INFO L93 Difference]: Finished difference Result 290 states and 394 transitions. [2023-11-23 07:30:43,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-23 07:30:43,152 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 4.166666666666667) internal successors, (75), 19 states have internal predecessors, (75), 7 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (22), 5 states have call predecessors, (22), 7 states have call successors, (22) Word has length 69 [2023-11-23 07:30:43,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:30:43,153 INFO L225 Difference]: With dead ends: 290 [2023-11-23 07:30:43,153 INFO L226 Difference]: Without dead ends: 169 [2023-11-23 07:30:43,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 143 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=116, Invalid=697, Unknown=7, NotChecked=110, Total=930 [2023-11-23 07:30:43,154 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 56 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 1 mSolverCounterUnsat, 37 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1527 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 37 IncrementalHoareTripleChecker+Unknown, 239 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2023-11-23 07:30:43,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1527 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 621 Invalid, 37 Unknown, 239 Unchecked, 22.9s Time] [2023-11-23 07:30:43,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-11-23 07:30:43,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 163. [2023-11-23 07:30:43,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 111 states have (on average 1.2522522522522523) internal successors, (139), 115 states have internal predecessors, (139), 38 states have call successors, (38), 13 states have call predecessors, (38), 13 states have return successors, (39), 34 states have call predecessors, (39), 37 states have call successors, (39) [2023-11-23 07:30:43,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 216 transitions. [2023-11-23 07:30:43,169 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 216 transitions. Word has length 69 [2023-11-23 07:30:43,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:30:43,170 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 216 transitions. [2023-11-23 07:30:43,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 4.166666666666667) internal successors, (75), 19 states have internal predecessors, (75), 7 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (22), 5 states have call predecessors, (22), 7 states have call successors, (22) [2023-11-23 07:30:43,170 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 216 transitions. [2023-11-23 07:30:43,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 07:30:43,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:30:43,171 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:30:43,204 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 07:30:43,373 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,SelfDestructingSolverStorable5 [2023-11-23 07:30:43,376 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:30:43,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:30:43,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1019656681, now seen corresponding path program 1 times [2023-11-23 07:30:43,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:30:43,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228014152] [2023-11-23 07:30:43,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:30:43,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:30:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:30:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:30:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:30:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-23 07:30:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-23 07:30:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 07:30:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 07:30:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:30:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 07:30:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,608 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 07:30:43,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:30:43,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228014152] [2023-11-23 07:30:43,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228014152] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:30:43,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:30:43,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 07:30:43,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157121419] [2023-11-23 07:30:43,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:30:43,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:30:43,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:30:43,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:30:43,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:30:43,610 INFO L87 Difference]: Start difference. First operand 163 states and 216 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 07:30:43,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:30:43,695 INFO L93 Difference]: Finished difference Result 274 states and 367 transitions. [2023-11-23 07:30:43,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:30:43,696 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 70 [2023-11-23 07:30:43,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:30:43,698 INFO L225 Difference]: With dead ends: 274 [2023-11-23 07:30:43,698 INFO L226 Difference]: Without dead ends: 163 [2023-11-23 07:30:43,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:30:43,699 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 34 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:30:43,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 548 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:30:43,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-11-23 07:30:43,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2023-11-23 07:30:43,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 111 states have (on average 1.2252252252252251) internal successors, (136), 115 states have internal predecessors, (136), 38 states have call successors, (38), 13 states have call predecessors, (38), 13 states have return successors, (39), 34 states have call predecessors, (39), 37 states have call successors, (39) [2023-11-23 07:30:43,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 213 transitions. [2023-11-23 07:30:43,713 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 213 transitions. Word has length 70 [2023-11-23 07:30:43,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:30:43,714 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 213 transitions. [2023-11-23 07:30:43,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 07:30:43,715 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 213 transitions. [2023-11-23 07:30:43,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-23 07:30:43,718 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:30:43,718 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:30:43,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 07:30:43,719 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:30:43,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:30:43,719 INFO L85 PathProgramCache]: Analyzing trace with hash 982584554, now seen corresponding path program 1 times [2023-11-23 07:30:43,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:30:43,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294195646] [2023-11-23 07:30:43,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:30:43,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:30:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:30:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:30:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 07:30:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 07:30:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 07:30:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 07:30:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 07:30:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 07:30:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 07:30:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:43,965 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-11-23 07:30:43,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:30:43,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294195646] [2023-11-23 07:30:43,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294195646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:30:43,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:30:43,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:30:43,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617699599] [2023-11-23 07:30:43,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:30:43,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:30:43,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:30:43,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:30:43,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:30:43,969 INFO L87 Difference]: Start difference. First operand 163 states and 213 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 07:30:44,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:30:44,023 INFO L93 Difference]: Finished difference Result 285 states and 377 transitions. [2023-11-23 07:30:44,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:30:44,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2023-11-23 07:30:44,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:30:44,026 INFO L225 Difference]: With dead ends: 285 [2023-11-23 07:30:44,027 INFO L226 Difference]: Without dead ends: 172 [2023-11-23 07:30:44,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:30:44,030 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 15 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:30:44,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 391 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:30:44,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-23 07:30:44,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 166. [2023-11-23 07:30:44,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 114 states have (on average 1.219298245614035) internal successors, (139), 118 states have internal predecessors, (139), 38 states have call successors, (38), 13 states have call predecessors, (38), 13 states have return successors, (39), 34 states have call predecessors, (39), 37 states have call successors, (39) [2023-11-23 07:30:44,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 216 transitions. [2023-11-23 07:30:44,051 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 216 transitions. Word has length 73 [2023-11-23 07:30:44,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:30:44,052 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 216 transitions. [2023-11-23 07:30:44,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 07:30:44,052 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 216 transitions. [2023-11-23 07:30:44,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-23 07:30:44,053 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:30:44,053 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:30:44,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 07:30:44,054 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:30:44,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:30:44,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1486035332, now seen corresponding path program 1 times [2023-11-23 07:30:44,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:30:44,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344633182] [2023-11-23 07:30:44,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:30:44,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:30:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:30:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:30:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:30:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 07:30:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 07:30:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 07:30:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 07:30:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 07:30:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 07:30:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,265 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 07:30:44,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:30:44,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344633182] [2023-11-23 07:30:44,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344633182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:30:44,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:30:44,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:30:44,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831816922] [2023-11-23 07:30:44,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:30:44,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:30:44,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:30:44,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:30:44,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:30:44,267 INFO L87 Difference]: Start difference. First operand 166 states and 216 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 07:30:44,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:30:44,318 INFO L93 Difference]: Finished difference Result 292 states and 390 transitions. [2023-11-23 07:30:44,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:30:44,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2023-11-23 07:30:44,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:30:44,320 INFO L225 Difference]: With dead ends: 292 [2023-11-23 07:30:44,320 INFO L226 Difference]: Without dead ends: 178 [2023-11-23 07:30:44,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:30:44,322 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 13 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:30:44,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 396 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:30:44,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-11-23 07:30:44,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 169. [2023-11-23 07:30:44,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 117 states have (on average 1.2136752136752136) internal successors, (142), 121 states have internal predecessors, (142), 38 states have call successors, (38), 13 states have call predecessors, (38), 13 states have return successors, (39), 34 states have call predecessors, (39), 37 states have call successors, (39) [2023-11-23 07:30:44,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 219 transitions. [2023-11-23 07:30:44,336 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 219 transitions. Word has length 73 [2023-11-23 07:30:44,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:30:44,337 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 219 transitions. [2023-11-23 07:30:44,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 07:30:44,337 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 219 transitions. [2023-11-23 07:30:44,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-23 07:30:44,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:30:44,338 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:30:44,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 07:30:44,338 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:30:44,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:30:44,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1961596280, now seen corresponding path program 1 times [2023-11-23 07:30:44,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:30:44,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948563592] [2023-11-23 07:30:44,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:30:44,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:30:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:30:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:30:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:30:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:30:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 07:30:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 07:30:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 07:30:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:30:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:30:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 07:30:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,572 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-23 07:30:44,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:30:44,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948563592] [2023-11-23 07:30:44,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948563592] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:30:44,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185231614] [2023-11-23 07:30:44,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:30:44,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:30:44,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:30:44,574 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 07:30:44,589 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 07:30:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:44,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 103 conjunts are in the unsatisfiable core [2023-11-23 07:30:44,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:30:44,890 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 07:30:44,894 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 07:30:45,499 INFO L349 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-23 07:30:45,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 30 [2023-11-23 07:30:45,510 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-23 07:30:45,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:30:45,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185231614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:30:45,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:30:45,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [7] total 19 [2023-11-23 07:30:45,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379949310] [2023-11-23 07:30:45,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:30:45,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 07:30:45,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:30:45,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 07:30:45,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2023-11-23 07:30:45,514 INFO L87 Difference]: Start difference. First operand 169 states and 219 transitions. Second operand has 14 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 4 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-23 07:30:46,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:30:46,287 INFO L93 Difference]: Finished difference Result 273 states and 358 transitions. [2023-11-23 07:30:46,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 07:30:46,287 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 4 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 80 [2023-11-23 07:30:46,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:30:46,288 INFO L225 Difference]: With dead ends: 273 [2023-11-23 07:30:46,289 INFO L226 Difference]: Without dead ends: 176 [2023-11-23 07:30:46,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2023-11-23 07:30:46,289 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 69 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:30:46,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 680 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:30:46,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-11-23 07:30:46,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 173. [2023-11-23 07:30:46,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 119 states have (on average 1.2100840336134453) internal successors, (144), 124 states have internal predecessors, (144), 39 states have call successors, (39), 13 states have call predecessors, (39), 14 states have return successors, (42), 35 states have call predecessors, (42), 38 states have call successors, (42) [2023-11-23 07:30:46,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 225 transitions. [2023-11-23 07:30:46,301 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 225 transitions. Word has length 80 [2023-11-23 07:30:46,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:30:46,301 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 225 transitions. [2023-11-23 07:30:46,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 4 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-23 07:30:46,301 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 225 transitions. [2023-11-23 07:30:46,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-23 07:30:46,302 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:30:46,302 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:30:46,315 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 07:30:46,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:30:46,515 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:30:46,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:30:46,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1480516022, now seen corresponding path program 1 times [2023-11-23 07:30:46,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:30:46,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13892708] [2023-11-23 07:30:46,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:30:46,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:30:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:46,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:30:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:46,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:30:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:46,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:30:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:30:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 07:30:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 07:30:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 07:30:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:30:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:30:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 07:30:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,113 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 07:30:47,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:30:47,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13892708] [2023-11-23 07:30:47,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13892708] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:30:47,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:30:47,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 07:30:47,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405688758] [2023-11-23 07:30:47,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:30:47,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 07:30:47,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:30:47,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 07:30:47,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:30:47,115 INFO L87 Difference]: Start difference. First operand 173 states and 225 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-23 07:30:47,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:30:47,384 INFO L93 Difference]: Finished difference Result 327 states and 441 transitions. [2023-11-23 07:30:47,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:30:47,385 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 80 [2023-11-23 07:30:47,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:30:47,386 INFO L225 Difference]: With dead ends: 327 [2023-11-23 07:30:47,386 INFO L226 Difference]: Without dead ends: 196 [2023-11-23 07:30:47,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:30:47,387 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 74 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:30:47,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 648 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:30:47,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-23 07:30:47,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 183. [2023-11-23 07:30:47,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 125 states have (on average 1.216) internal successors, (152), 134 states have internal predecessors, (152), 41 states have call successors, (41), 13 states have call predecessors, (41), 16 states have return successors, (49), 35 states have call predecessors, (49), 40 states have call successors, (49) [2023-11-23 07:30:47,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 242 transitions. [2023-11-23 07:30:47,402 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 242 transitions. Word has length 80 [2023-11-23 07:30:47,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:30:47,403 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 242 transitions. [2023-11-23 07:30:47,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-23 07:30:47,403 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 242 transitions. [2023-11-23 07:30:47,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-23 07:30:47,404 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:30:47,404 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:30:47,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 07:30:47,404 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:30:47,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:30:47,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1276111244, now seen corresponding path program 1 times [2023-11-23 07:30:47,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:30:47,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803864829] [2023-11-23 07:30:47,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:30:47,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:30:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:30:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:30:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:30:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:30:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 07:30:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 07:30:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 07:30:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:30:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:30:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 07:30:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:47,669 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 07:30:47,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:30:47,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803864829] [2023-11-23 07:30:47,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803864829] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:30:47,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:30:47,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 07:30:47,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401348058] [2023-11-23 07:30:47,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:30:47,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:30:47,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:30:47,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:30:47,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:30:47,671 INFO L87 Difference]: Start difference. First operand 183 states and 242 transitions. Second operand has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-23 07:30:47,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:30:47,850 INFO L93 Difference]: Finished difference Result 328 states and 456 transitions. [2023-11-23 07:30:47,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:30:47,850 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 80 [2023-11-23 07:30:47,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:30:47,852 INFO L225 Difference]: With dead ends: 328 [2023-11-23 07:30:47,852 INFO L226 Difference]: Without dead ends: 191 [2023-11-23 07:30:47,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:30:47,853 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 59 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:30:47,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 658 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:30:47,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-11-23 07:30:47,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 181. [2023-11-23 07:30:47,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 124 states have (on average 1.217741935483871) internal successors, (151), 132 states have internal predecessors, (151), 41 states have call successors, (41), 13 states have call predecessors, (41), 15 states have return successors, (47), 35 states have call predecessors, (47), 40 states have call successors, (47) [2023-11-23 07:30:47,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 239 transitions. [2023-11-23 07:30:47,873 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 239 transitions. Word has length 80 [2023-11-23 07:30:47,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:30:47,873 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 239 transitions. [2023-11-23 07:30:47,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-23 07:30:47,873 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 239 transitions. [2023-11-23 07:30:47,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-23 07:30:47,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:30:47,875 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:30:47,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 07:30:47,875 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:30:47,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:30:47,876 INFO L85 PathProgramCache]: Analyzing trace with hash -966331477, now seen corresponding path program 1 times [2023-11-23 07:30:47,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:30:47,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367378778] [2023-11-23 07:30:47,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:30:47,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:30:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:48,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:30:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:48,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:30:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:48,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:30:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:48,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:30:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:48,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 07:30:48,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:48,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 07:30:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:48,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 07:30:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:48,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 07:30:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:48,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 07:30:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:48,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 07:30:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 07:30:48,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:30:48,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367378778] [2023-11-23 07:30:48,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367378778] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:30:48,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344041826] [2023-11-23 07:30:48,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:30:48,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:30:48,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:30:48,250 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 07:30:48,271 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 07:30:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:30:48,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 79 conjunts are in the unsatisfiable core [2023-11-23 07:30:48,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:30:48,536 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 07:30:48,538 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 07:30:48,815 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-23 07:30:48,815 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:30:49,270 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 07:30:49,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344041826] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 07:30:49,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:30:49,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8, 14] total 27 [2023-11-23 07:30:49,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050898333] [2023-11-23 07:30:49,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:30:49,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:30:49,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:30:49,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:30:49,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=628, Unknown=0, NotChecked=0, Total=702 [2023-11-23 07:30:49,272 INFO L87 Difference]: Start difference. First operand 181 states and 239 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-23 07:30:49,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:30:49,562 INFO L93 Difference]: Finished difference Result 303 states and 404 transitions. [2023-11-23 07:30:49,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:30:49,562 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 82 [2023-11-23 07:30:49,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:30:49,563 INFO L225 Difference]: With dead ends: 303 [2023-11-23 07:30:49,563 INFO L226 Difference]: Without dead ends: 183 [2023-11-23 07:30:49,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=882, Unknown=0, NotChecked=0, Total=992 [2023-11-23 07:30:49,564 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 17 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:30:49,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 799 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:30:49,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-23 07:30:49,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 181. [2023-11-23 07:30:49,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 124 states have (on average 1.1935483870967742) internal successors, (148), 132 states have internal predecessors, (148), 41 states have call successors, (41), 13 states have call predecessors, (41), 15 states have return successors, (47), 35 states have call predecessors, (47), 40 states have call successors, (47) [2023-11-23 07:30:49,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 236 transitions. [2023-11-23 07:30:49,578 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 236 transitions. Word has length 82 [2023-11-23 07:30:49,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:30:49,578 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 236 transitions. [2023-11-23 07:30:49,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-23 07:30:49,578 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 236 transitions. [2023-11-23 07:30:49,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-23 07:30:49,579 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:30:49,579 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:30:49,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 07:30:49,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:30:49,793 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:30:49,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:30:49,794 INFO L85 PathProgramCache]: Analyzing trace with hash 364282499, now seen corresponding path program 1 times [2023-11-23 07:30:49,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:30:49,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581110808] [2023-11-23 07:30:49,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:30:49,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:30:49,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 07:30:49,922 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 07:30:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 07:30:50,017 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 07:30:50,018 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 07:30:50,018 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 07:30:50,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 07:30:50,023 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:30:50,026 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 07:30:50,060 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret554 could not be translated [2023-11-23 07:30:50,063 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-23 07:30:50,063 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:30:50,063 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:30:50,063 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:30:50,063 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:30:50,064 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:30:50,064 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:30:50,064 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:30:50,064 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:30:50,064 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:30:50,064 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:30:50,065 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:30:50,065 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:30:50,065 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:30:50,065 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:30:50,065 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:30:50,065 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:30:50,066 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:30:50,066 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:30:50,066 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:30:50,066 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:30:50,066 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:30:50,067 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:30:50,067 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:30:50,067 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:30:50,067 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:30:50,071 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:30:50,071 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:30:50,071 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:30:50,071 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:30:50,071 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:30:50,071 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:30:50,072 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:30:50,072 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem311 [2023-11-23 07:30:50,072 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:30:50,072 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:30:50,072 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:30:50,074 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:30:50,074 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:30:50,074 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:30:50,074 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:30:50,075 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:30:50,075 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:30:50,075 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem317 [2023-11-23 07:30:50,075 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:30:50,075 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem316 [2023-11-23 07:30:50,075 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:30:50,076 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:30:50,076 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret324 could not be translated [2023-11-23 07:30:50,078 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret393 could not be translated [2023-11-23 07:30:50,080 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret393 could not be translated [2023-11-23 07:30:50,082 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated [2023-11-23 07:30:50,082 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem319 [2023-11-23 07:30:50,082 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated [2023-11-23 07:30:50,082 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short323 could not be translated [2023-11-23 07:30:50,082 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated [2023-11-23 07:30:50,082 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem319 [2023-11-23 07:30:50,083 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short323 could not be translated [2023-11-23 07:30:50,083 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated [2023-11-23 07:30:50,083 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem319 [2023-11-23 07:30:50,083 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem322 [2023-11-23 07:30:50,083 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem321 [2023-11-23 07:30:50,083 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret377 could not be translated [2023-11-23 07:30:50,084 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret377 could not be translated [2023-11-23 07:30:50,084 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated [2023-11-23 07:30:50,084 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated [2023-11-23 07:30:50,084 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem319 [2023-11-23 07:30:50,085 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short323 could not be translated [2023-11-23 07:30:50,085 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem319 [2023-11-23 07:30:50,085 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated [2023-11-23 07:30:50,085 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short323 could not be translated [2023-11-23 07:30:50,085 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated [2023-11-23 07:30:50,085 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem319 [2023-11-23 07:30:50,085 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem322 [2023-11-23 07:30:50,086 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem321 [2023-11-23 07:30:50,086 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret380 could not be translated [2023-11-23 07:30:50,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 07:30:50 BoogieIcfgContainer [2023-11-23 07:30:50,101 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 07:30:50,101 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 07:30:50,102 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 07:30:50,102 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 07:30:50,102 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:30:11" (3/4) ... [2023-11-23 07:30:50,103 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 07:30:50,112 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret554 could not be translated [2023-11-23 07:30:50,113 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-23 07:30:50,113 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:30:50,113 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:30:50,113 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:30:50,114 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:30:50,114 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:30:50,114 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:30:50,114 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:30:50,114 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:30:50,114 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:30:50,114 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:30:50,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:30:50,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:30:50,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:30:50,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:30:50,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:30:50,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:30:50,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:30:50,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:30:50,116 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:30:50,116 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:30:50,116 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:30:50,116 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:30:50,116 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:30:50,116 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:30:50,116 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:30:50,116 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:30:50,117 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:30:50,117 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:30:50,117 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:30:50,117 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:30:50,117 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:30:50,117 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:30:50,117 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:30:50,117 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem311 [2023-11-23 07:30:50,118 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:30:50,118 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:30:50,119 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:30:50,119 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:30:50,119 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:30:50,119 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:30:50,119 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:30:50,119 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:30:50,119 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem316 [2023-11-23 07:30:50,119 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem317 [2023-11-23 07:30:50,120 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:30:50,120 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:30:50,120 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:30:50,120 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret324 could not be translated [2023-11-23 07:30:50,121 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret393 could not be translated [2023-11-23 07:30:50,121 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret393 could not be translated [2023-11-23 07:30:50,122 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated [2023-11-23 07:30:50,122 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated [2023-11-23 07:30:50,123 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem319 [2023-11-23 07:30:50,123 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short323 could not be translated [2023-11-23 07:30:50,123 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated [2023-11-23 07:30:50,123 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem319 [2023-11-23 07:30:50,123 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short323 could not be translated [2023-11-23 07:30:50,123 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated [2023-11-23 07:30:50,123 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem322 [2023-11-23 07:30:50,124 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem319 [2023-11-23 07:30:50,124 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem321 [2023-11-23 07:30:50,124 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret377 could not be translated [2023-11-23 07:30:50,124 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret377 could not be translated [2023-11-23 07:30:50,126 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated [2023-11-23 07:30:50,126 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated [2023-11-23 07:30:50,127 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem319 [2023-11-23 07:30:50,127 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem319 [2023-11-23 07:30:50,128 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short323 could not be translated [2023-11-23 07:30:50,128 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated [2023-11-23 07:30:50,128 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short323 could not be translated [2023-11-23 07:30:50,128 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem319 [2023-11-23 07:30:50,128 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated [2023-11-23 07:30:50,128 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem321 [2023-11-23 07:30:50,128 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem322 [2023-11-23 07:30:50,129 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret380 could not be translated [2023-11-23 07:30:50,169 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-11-23 07:30:50,169 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 07:30:50,170 INFO L158 Benchmark]: Toolchain (without parser) took 41271.55ms. Allocated memory was 167.8MB in the beginning and 425.7MB in the end (delta: 257.9MB). Free memory was 90.5MB in the beginning and 214.0MB in the end (delta: -123.5MB). Peak memory consumption was 137.6MB. Max. memory is 16.1GB. [2023-11-23 07:30:50,170 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 124.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 07:30:50,171 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1458.79ms. Allocated memory is still 167.8MB. Free memory was 137.7MB in the beginning and 86.2MB in the end (delta: 51.5MB). Peak memory consumption was 106.6MB. Max. memory is 16.1GB. [2023-11-23 07:30:50,171 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.37ms. Allocated memory is still 167.8MB. Free memory was 85.4MB in the beginning and 79.9MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 07:30:50,171 INFO L158 Benchmark]: Boogie Preprocessor took 92.32ms. Allocated memory is still 167.8MB. Free memory was 79.9MB in the beginning and 74.9MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 07:30:50,171 INFO L158 Benchmark]: RCFGBuilder took 569.21ms. Allocated memory was 167.8MB in the beginning and 266.3MB in the end (delta: 98.6MB). Free memory was 74.9MB in the beginning and 200.9MB in the end (delta: -126.0MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2023-11-23 07:30:50,172 INFO L158 Benchmark]: TraceAbstraction took 38948.22ms. Allocated memory was 266.3MB in the beginning and 425.7MB in the end (delta: 159.4MB). Free memory was 200.9MB in the beginning and 222.4MB in the end (delta: -21.4MB). Peak memory consumption was 138.0MB. Max. memory is 16.1GB. [2023-11-23 07:30:50,172 INFO L158 Benchmark]: Witness Printer took 67.73ms. Allocated memory is still 425.7MB. Free memory was 222.4MB in the beginning and 214.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 07:30:50,174 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 124.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1458.79ms. Allocated memory is still 167.8MB. Free memory was 137.7MB in the beginning and 86.2MB in the end (delta: 51.5MB). Peak memory consumption was 106.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.37ms. Allocated memory is still 167.8MB. Free memory was 85.4MB in the beginning and 79.9MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.32ms. Allocated memory is still 167.8MB. Free memory was 79.9MB in the beginning and 74.9MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 569.21ms. Allocated memory was 167.8MB in the beginning and 266.3MB in the end (delta: 98.6MB). Free memory was 74.9MB in the beginning and 200.9MB in the end (delta: -126.0MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * TraceAbstraction took 38948.22ms. Allocated memory was 266.3MB in the beginning and 425.7MB in the end (delta: 159.4MB). Free memory was 200.9MB in the beginning and 222.4MB in the end (delta: -21.4MB). Peak memory consumption was 138.0MB. Max. memory is 16.1GB. * Witness Printer took 67.73ms. Allocated memory is still 425.7MB. Free memory was 222.4MB in the beginning and 214.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. 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: 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: 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: 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~short310 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: unknown boogie variable #t~mem307 - 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~short310 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~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: 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: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem311 - 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~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: unknown boogie variable #t~mem316 - 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~ret393 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret393 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem319 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short323 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem319 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short323 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem319 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem322 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem321 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret377 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret377 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem319 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short323 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem319 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short323 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem319 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem322 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem321 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret380 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: 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: 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: 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: 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: IdentifierExpression #t~short310 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: 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~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~short312 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~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~mem309 - 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~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - 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: 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~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~ret393 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret393 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem319 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short323 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem319 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short323 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem322 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem319 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem321 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret377 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret377 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem319 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem319 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short323 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short323 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem319 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short320 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem321 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem322 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret380 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; [L7362] CALL aws_linked_list_push_back_harness() [L7344] struct aws_linked_list list; [L7345] struct aws_linked_list_node to_add; [L7347] 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={7:0}, list={7:0}, 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={7:0}, list={7:0}, 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={7:0}, i=0, length=0, list={7:0}, list={7:0}, 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={7:0}, i=0, length=0, list={7:0}, list={7:0}, max_length=20, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L6764] curr->next = &list->tail [L6765] list->tail.prev = curr [L7347] RET ensure_linked_list_is_allocated(&list, 20) [L7350] EXPR list.tail.prev [L7350] struct aws_linked_list_node *old_last = list.tail.prev; [L7353] CALL aws_linked_list_push_back(&list, &to_add) [L4943] 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={7:0}, list={7:0}, 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={7:0}, list={7:0}, 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={7:0}, list={7:0}, 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={7:0}, list={7:0}, 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={7:0}, list={7:0}, 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={7:0}, list={7:0}, 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={7:0}, list={7:0}, 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={7:0}, list={7:0}, 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={7:0}, list={7:0}, s_can_fail_allocator_static={4:0}, temp={7:0}, tl_last_error=0] [L4750] COND TRUE \read(*temp) VAL [head_reaches_tail=0, list={7:0}, list={7:0}, s_can_fail_allocator_static={4:0}, temp={7:0}, tl_last_error=0] [L4751] COND FALSE !(temp == &list->tail) VAL [head_reaches_tail=0, list={7:0}, list={7:0}, s_can_fail_allocator_static={4:0}, temp={7:0}, tl_last_error=0] [L4756] CALL, EXPR aws_linked_list_node_next_is_valid(temp) VAL [node={7:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next VAL [node={7:0}, node={7:0}, 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={7:0}, node={7:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next && node->next->prev == node VAL [node={7:0}, node={7:0}, 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={7:0}, node={7:0}, 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={7:0}, list={7:0}, s_can_fail_allocator_static={4:0}, temp={7:0}, 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={7:0}, list={7:0}, s_can_fail_allocator_static={4:0}, temp={7:16}, tl_last_error=0] [L4751] COND TRUE temp == &list->tail [L4752-L4753] head_reaches_tail = 1 VAL [head_reaches_tail=1, list={7:0}, list={7:0}, s_can_fail_allocator_static={4:0}, temp={7:16}, tl_last_error=0] [L4764] return head_reaches_tail; VAL [\result=1, head_reaches_tail=1, list={7:0}, list={7:0}, s_can_fail_allocator_static={4:0}, temp={7:16}, tl_last_error=0] [L4700] RET, EXPR aws_linked_list_is_valid_deep(list) [L4700] return aws_linked_list_is_valid_deep(list); [L4943] RET, EXPR aws_linked_list_is_valid(list) VAL [list={7:0}, list={7:0}, node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4943] 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] [L4943] RET assume_abort_if_not((aws_linked_list_is_valid(list))) VAL [list={7:0}, list={7:0}, node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4944-L4946] CALL assume_abort_if_not((node != ((void *)0) )) 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] [L4944-L4946] RET assume_abort_if_not((node != ((void *)0) )) VAL [list={7:0}, list={7:0}, node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4947] CALL aws_linked_list_insert_before(&list->tail, node) VAL [before={7:16}, s_can_fail_allocator_static={4:0}, tl_last_error=0, to_add={6:0}] [L4912] CALL, EXPR aws_linked_list_node_prev_is_valid(before) VAL [node={7:16}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4729] EXPR node && node->prev VAL [node={7:16}, node={7:16}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4729] EXPR node && node->prev [L4729] EXPR node->prev [L4729] EXPR node && node->prev VAL [node={7:16}, node={7:16}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4729] EXPR node && node->prev && node->prev->next == node VAL [node={7:16}, node={7:16}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4729] EXPR node && node->prev && node->prev->next == node [L4729] EXPR node->prev [L4729] EXPR node->prev->next [L4729] EXPR node && node->prev && node->prev->next == node VAL [node={7:16}, node={7:16}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4729] return node && node->prev && node->prev->next == node; [L4912] RET, EXPR aws_linked_list_node_prev_is_valid(before) VAL [before={7:16}, before={7:16}, s_can_fail_allocator_static={4:0}, tl_last_error=0, to_add={6:0}, to_add={6:0}] [L4912] CALL assume_abort_if_not((aws_linked_list_node_prev_is_valid(before))) 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] [L4912] RET assume_abort_if_not((aws_linked_list_node_prev_is_valid(before))) VAL [before={7:16}, before={7:16}, s_can_fail_allocator_static={4:0}, tl_last_error=0, to_add={6:0}, to_add={6:0}] [L4913-L4915] CALL assume_abort_if_not((to_add != ((void *)0) )) 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] [L4913-L4915] RET assume_abort_if_not((to_add != ((void *)0) )) VAL [before={7:16}, before={7:16}, s_can_fail_allocator_static={4:0}, tl_last_error=0, to_add={6:0}, to_add={6:0}] [L4916] to_add->next = before [L4917] EXPR before->prev [L4917] to_add->prev = before->prev [L4918] EXPR before->prev [L4918] before->prev->next = to_add [L4919] before->prev = to_add VAL [before={7:16}, before={7:16}, s_can_fail_allocator_static={4:0}, tl_last_error=0, to_add={6:0}, to_add={6:0}] [L4920] CALL, EXPR aws_linked_list_node_prev_is_valid(before) VAL [node={7:16}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4729] EXPR node && node->prev VAL [node={7:16}, node={7:16}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4729] EXPR node && node->prev [L4729] EXPR node->prev [L4729] EXPR node && node->prev VAL [node={7:16}, node={7:16}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4729] EXPR node && node->prev && node->prev->next == node VAL [node={7:16}, node={7:16}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4729] EXPR node && node->prev && node->prev->next == node [L4729] EXPR node->prev [L4729] EXPR node->prev->next [L4729] EXPR node && node->prev && node->prev->next == node VAL [node={7:16}, node={7:16}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4729] return node && node->prev && node->prev->next == node; [L4920] RET, EXPR aws_linked_list_node_prev_is_valid(before) VAL [before={7:16}, before={7:16}, s_can_fail_allocator_static={4:0}, tl_last_error=0, to_add={6:0}, to_add={6:0}] [L4920] CALL __VERIFIER_assert(!((aws_linked_list_node_prev_is_valid(before)))) 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 8 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38.8s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 27.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 37 mSolverCounterUnknown, 507 SdHoareTripleChecker+Valid, 24.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 452 mSDsluCounter, 7453 SdHoareTripleChecker+Invalid, 24.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 239 IncrementalHoareTripleChecker+Unchecked, 6066 mSDsCounter, 120 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2322 IncrementalHoareTripleChecker+Invalid, 2718 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 120 mSolverCounterUnsat, 1387 mSDtfsCounter, 2322 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 817 GetRequests, 663 SyntacticMatches, 1 SemanticMatches, 153 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=11, InterpolantAutomatonStates: 115, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 67 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 1329 NumberOfCodeBlocks, 1329 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1378 ConstructedInterpolants, 52 QuantifiedInterpolants, 8067 SizeOfPredicates, 78 NumberOfNonLiveVariables, 1922 ConjunctsInSsa, 281 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 850/881 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 07:30:50,219 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