/root/.sdkman/candidates/java/11.0.12-open/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_begin_harness.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-tmp.fs.smtinterpol-bv-eval-3dddfdf-m [2024-11-15 16:25:31,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-15 16:25:31,231 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-15 16:25:31,238 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-15 16:25:31,239 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-15 16:25:31,269 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-15 16:25:31,269 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-15 16:25:31,270 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-15 16:25:31,270 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-15 16:25:31,273 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-15 16:25:31,273 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-15 16:25:31,273 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-15 16:25:31,274 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-15 16:25:31,274 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-15 16:25:31,275 INFO L153 SettingsManager]: * Use SBE=true [2024-11-15 16:25:31,275 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-15 16:25:31,275 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-15 16:25:31,276 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-15 16:25:31,279 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-15 16:25:31,279 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-15 16:25:31,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-15 16:25:31,282 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-15 16:25:31,282 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-15 16:25:31,283 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-15 16:25:31,283 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-15 16:25:31,283 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-15 16:25:31,283 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-15 16:25:31,284 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-15 16:25:31,284 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-15 16:25:31,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-15 16:25:31,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-15 16:25:31,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-15 16:25:31,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-15 16:25:31,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-15 16:25:31,287 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-15 16:25:31,287 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-15 16:25:31,288 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-15 16:25:31,288 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-15 16:25:31,288 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-15 16:25:31,288 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-15 16:25:31,289 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-15 16:25:31,290 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-15 16:25:31,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-15 16:25:31,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-15 16:25:31,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-15 16:25:31,615 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-15 16:25:31,616 INFO L274 PluginConnector]: CDTParser initialized [2024-11-15 16:25:31,617 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_begin_harness.i [2024-11-15 16:25:33,185 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-15 16:25:33,607 INFO L384 CDTParser]: Found 1 translation units. [2024-11-15 16:25:33,610 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_begin_harness.i [2024-11-15 16:25:33,649 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf6b98e6/ec901f77971f429fa62fced7c4872354/FLAG9b5eb9d9c [2024-11-15 16:25:33,666 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf6b98e6/ec901f77971f429fa62fced7c4872354 [2024-11-15 16:25:33,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-15 16:25:33,672 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-15 16:25:33,673 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-15 16:25:33,673 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-15 16:25:33,681 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-15 16:25:33,681 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 04:25:33" (1/1) ... [2024-11-15 16:25:33,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62908611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:25:33, skipping insertion in model container [2024-11-15 16:25:33,682 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 04:25:33" (1/1) ... [2024-11-15 16:25:33,808 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-15 16:25:34,079 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_begin_harness.i[4495,4508] [2024-11-15 16:25:34,088 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_begin_harness.i[4555,4568] [2024-11-15 16:25:34,548 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,631 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,632 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,633 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,649 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,651 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:34,652 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:34,652 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:34,652 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,653 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:34,657 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:34,660 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,660 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,666 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,667 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,680 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:34,680 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,680 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:34,681 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,683 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:34,685 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,685 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:34,685 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,687 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:34,687 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,688 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:34,691 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,691 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:34,692 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:34,973 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,974 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,974 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:34,975 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,085 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-15 16:25:35,127 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-15 16:25:35,166 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-15 16:25:35,173 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_begin_harness.i[4495,4508] [2024-11-15 16:25:35,174 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_begin_harness.i[4555,4568] [2024-11-15 16:25:35,204 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,220 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,221 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,221 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,227 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,228 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,228 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,228 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,229 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,233 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,233 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,235 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,235 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,240 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,241 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,249 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,249 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,249 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,250 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,251 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,251 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,257 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,257 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,259 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,259 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,259 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,260 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,260 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,260 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,317 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,318 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,322 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,322 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,357 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-15 16:25:35,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-15 16:25:35,373 INFO L200 MainTranslator]: Completed pre-run [2024-11-15 16:25:35,386 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_begin_harness.i[4495,4508] [2024-11-15 16:25:35,387 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_begin_harness.i[4555,4568] [2024-11-15 16:25:35,436 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,437 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,437 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,437 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,438 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,444 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,444 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,446 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,447 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,447 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,448 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,448 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,448 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-15 16:25:35,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-15 16:25:35,736 WARN L710 CHandler]: The following functions are not defined or handled internally: aws_array_list_ensure_capacity [2024-11-15 16:25:35,746 INFO L204 MainTranslator]: Completed translation [2024-11-15 16:25:35,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:25:35 WrapperNode [2024-11-15 16:25:35,750 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-15 16:25:35,752 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-15 16:25:35,752 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-15 16:25:35,752 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-15 16:25:35,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:25:35" (1/1) ... [2024-11-15 16:25:35,835 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:25:35" (1/1) ... [2024-11-15 16:25:35,881 INFO L138 Inliner]: procedures = 687, calls = 1039, calls flagged for inlining = 52, calls inlined = 6, statements flattened = 144 [2024-11-15 16:25:35,881 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-15 16:25:35,882 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-15 16:25:35,883 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-15 16:25:35,883 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-15 16:25:35,894 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:25:35" (1/1) ... [2024-11-15 16:25:35,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:25:35" (1/1) ... [2024-11-15 16:25:35,902 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:25:35" (1/1) ... [2024-11-15 16:25:35,928 INFO L175 MemorySlicer]: Split 24 memory accesses to 3 slices as follows [2, 17, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5]. The 6 writes are split as follows [0, 6, 0]. [2024-11-15 16:25:35,929 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:25:35" (1/1) ... [2024-11-15 16:25:35,929 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:25:35" (1/1) ... [2024-11-15 16:25:35,952 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:25:35" (1/1) ... [2024-11-15 16:25:35,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:25:35" (1/1) ... [2024-11-15 16:25:35,967 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:25:35" (1/1) ... [2024-11-15 16:25:35,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:25:35" (1/1) ... [2024-11-15 16:25:35,981 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-15 16:25:35,982 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-15 16:25:35,982 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-15 16:25:35,982 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-15 16:25:35,985 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:25:35" (1/1) ... [2024-11-15 16:25:35,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-15 16:25:36,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:25:36,016 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-15 16:25:36,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-15 16:25:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-15 16:25:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-15 16:25:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-15 16:25:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-15 16:25:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-15 16:25:36,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-15 16:25:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2024-11-15 16:25:36,068 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2024-11-15 16:25:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-15 16:25:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2024-11-15 16:25:36,068 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2024-11-15 16:25:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-15 16:25:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-15 16:25:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-15 16:25:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-15 16:25:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-15 16:25:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-15 16:25:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-15 16:25:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-15 16:25:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-15 16:25:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-15 16:25:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-15 16:25:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-15 16:25:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-15 16:25:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-15 16:25:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-15 16:25:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-15 16:25:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-15 16:25:36,376 INFO L238 CfgBuilder]: Building ICFG [2024-11-15 16:25:36,378 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-15 16:25:36,689 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-15 16:25:36,690 INFO L287 CfgBuilder]: Performing block encoding [2024-11-15 16:25:36,706 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-15 16:25:36,709 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-15 16:25:36,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 04:25:36 BoogieIcfgContainer [2024-11-15 16:25:36,710 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-15 16:25:36,712 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-15 16:25:36,712 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-15 16:25:36,719 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-15 16:25:36,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 04:25:33" (1/3) ... [2024-11-15 16:25:36,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb97435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 04:25:36, skipping insertion in model container [2024-11-15 16:25:36,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 04:25:35" (2/3) ... [2024-11-15 16:25:36,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb97435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 04:25:36, skipping insertion in model container [2024-11-15 16:25:36,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 04:25:36" (3/3) ... [2024-11-15 16:25:36,721 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_begin_harness.i [2024-11-15 16:25:36,752 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-15 16:25:36,753 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-15 16:25:36,807 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-15 16:25:36,813 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34d4f88b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-15 16:25:36,813 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-15 16:25:36,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 49 states have (on average 1.346938775510204) internal successors, (66), 50 states have internal predecessors, (66), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-15 16:25:36,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-15 16:25:36,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:25:36,829 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:25:36,829 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:25:36,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:25:36,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1062572114, now seen corresponding path program 1 times [2024-11-15 16:25:36,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:25:36,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030955301] [2024-11-15 16:25:36,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:36,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:25:37,219 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:25:37,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [692317156] [2024-11-15 16:25:37,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:37,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:37,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:25:37,222 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:25:37,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-15 16:25:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:25:37,436 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-15 16:25:37,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:25:37,471 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-15 16:25:37,471 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:25:37,471 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:25:37,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030955301] [2024-11-15 16:25:37,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:25:37,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692317156] [2024-11-15 16:25:37,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692317156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:25:37,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:25:37,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-15 16:25:37,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112973595] [2024-11-15 16:25:37,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:25:37,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-15 16:25:37,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:25:37,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-15 16:25:37,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-15 16:25:37,506 INFO L87 Difference]: Start difference. First operand has 69 states, 49 states have (on average 1.346938775510204) internal successors, (66), 50 states have internal predecessors, (66), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-15 16:25:37,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:25:37,532 INFO L93 Difference]: Finished difference Result 130 states and 186 transitions. [2024-11-15 16:25:37,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-15 16:25:37,534 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-11-15 16:25:37,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:25:37,540 INFO L225 Difference]: With dead ends: 130 [2024-11-15 16:25:37,540 INFO L226 Difference]: Without dead ends: 64 [2024-11-15 16:25:37,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-15 16:25:37,545 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:25:37,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:25:37,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-15 16:25:37,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-11-15 16:25:37,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 45 states have (on average 1.288888888888889) internal successors, (58), 46 states have internal predecessors, (58), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-15 16:25:37,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2024-11-15 16:25:37,578 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 83 transitions. Word has length 68 [2024-11-15 16:25:37,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:25:37,578 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 83 transitions. [2024-11-15 16:25:37,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-15 16:25:37,579 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2024-11-15 16:25:37,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-15 16:25:37,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:25:37,581 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:25:37,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-15 16:25:37,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-15 16:25:37,782 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:25:37,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:25:37,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1946087212, now seen corresponding path program 1 times [2024-11-15 16:25:37,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:25:37,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629871203] [2024-11-15 16:25:37,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:37,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:25:37,947 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:25:37,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1743465944] [2024-11-15 16:25:37,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:37,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:37,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:25:37,981 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) [2024-11-15 16:25:37,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-15 16:25:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:25:38,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-15 16:25:38,190 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:25:38,269 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-15 16:25:38,269 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:25:38,269 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:25:38,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629871203] [2024-11-15 16:25:38,269 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:25:38,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743465944] [2024-11-15 16:25:38,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743465944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:25:38,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:25:38,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-15 16:25:38,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651491893] [2024-11-15 16:25:38,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:25:38,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-15 16:25:38,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:25:38,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-15 16:25:38,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-15 16:25:38,274 INFO L87 Difference]: Start difference. First operand 64 states and 83 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-15 16:25:38,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:25:38,350 INFO L93 Difference]: Finished difference Result 116 states and 154 transitions. [2024-11-15 16:25:38,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-15 16:25:38,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2024-11-15 16:25:38,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:25:38,354 INFO L225 Difference]: With dead ends: 116 [2024-11-15 16:25:38,354 INFO L226 Difference]: Without dead ends: 66 [2024-11-15 16:25:38,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-15 16:25:38,359 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:25:38,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 382 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:25:38,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-15 16:25:38,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-15 16:25:38,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 46 states have (on average 1.2826086956521738) internal successors, (59), 48 states have internal predecessors, (59), 13 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-15 16:25:38,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 87 transitions. [2024-11-15 16:25:38,375 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 87 transitions. Word has length 68 [2024-11-15 16:25:38,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:25:38,376 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 87 transitions. [2024-11-15 16:25:38,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-15 16:25:38,376 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 87 transitions. [2024-11-15 16:25:38,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-15 16:25:38,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:25:38,380 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:25:38,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-15 16:25:38,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-15 16:25:38,581 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:25:38,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:25:38,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1195332088, now seen corresponding path program 1 times [2024-11-15 16:25:38,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:25:38,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252704026] [2024-11-15 16:25:38,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:38,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:25:38,665 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:25:38,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [100729997] [2024-11-15 16:25:38,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:38,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:38,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:25:38,668 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) [2024-11-15 16:25:38,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-15 16:25:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:25:38,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-15 16:25:38,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:25:38,980 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-15 16:25:38,981 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:25:38,981 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:25:38,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252704026] [2024-11-15 16:25:38,981 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:25:38,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100729997] [2024-11-15 16:25:38,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100729997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:25:38,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:25:38,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-15 16:25:38,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630869823] [2024-11-15 16:25:38,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:25:38,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-15 16:25:38,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:25:38,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-15 16:25:38,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-15 16:25:38,984 INFO L87 Difference]: Start difference. First operand 66 states and 87 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-15 16:25:39,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:25:39,147 INFO L93 Difference]: Finished difference Result 123 states and 165 transitions. [2024-11-15 16:25:39,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-15 16:25:39,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2024-11-15 16:25:39,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:25:39,149 INFO L225 Difference]: With dead ends: 123 [2024-11-15 16:25:39,149 INFO L226 Difference]: Without dead ends: 71 [2024-11-15 16:25:39,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-15 16:25:39,151 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 21 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-15 16:25:39,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 300 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-15 16:25:39,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-15 16:25:39,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2024-11-15 16:25:39,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 51 states have internal predecessors, (61), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (17), 12 states have call predecessors, (17), 12 states have call successors, (17) [2024-11-15 16:25:39,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 91 transitions. [2024-11-15 16:25:39,170 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 91 transitions. Word has length 70 [2024-11-15 16:25:39,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:25:39,173 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 91 transitions. [2024-11-15 16:25:39,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-15 16:25:39,173 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 91 transitions. [2024-11-15 16:25:39,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-15 16:25:39,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:25:39,175 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:25:39,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-15 16:25:39,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:39,376 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:25:39,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:25:39,376 INFO L85 PathProgramCache]: Analyzing trace with hash -316025515, now seen corresponding path program 1 times [2024-11-15 16:25:39,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:25:39,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542069678] [2024-11-15 16:25:39,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:39,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:25:39,483 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:25:39,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [103118560] [2024-11-15 16:25:39,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:39,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:39,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:25:39,491 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) [2024-11-15 16:25:39,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-15 16:25:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:25:39,677 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-15 16:25:39,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:25:39,780 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-15 16:25:39,780 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:25:39,781 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:25:39,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542069678] [2024-11-15 16:25:39,781 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:25:39,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103118560] [2024-11-15 16:25:39,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103118560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:25:39,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:25:39,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-15 16:25:39,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711392381] [2024-11-15 16:25:39,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:25:39,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-15 16:25:39,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:25:39,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-15 16:25:39,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:25:39,785 INFO L87 Difference]: Start difference. First operand 69 states and 91 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-15 16:25:39,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:25:39,988 INFO L93 Difference]: Finished difference Result 135 states and 183 transitions. [2024-11-15 16:25:39,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-15 16:25:39,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2024-11-15 16:25:39,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:25:39,990 INFO L225 Difference]: With dead ends: 135 [2024-11-15 16:25:39,990 INFO L226 Difference]: Without dead ends: 80 [2024-11-15 16:25:39,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-15 16:25:39,993 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 30 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-15 16:25:39,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 354 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-15 16:25:39,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-15 16:25:40,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 71. [2024-11-15 16:25:40,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 50 states have (on average 1.28) internal successors, (64), 53 states have internal predecessors, (64), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (17), 12 states have call predecessors, (17), 12 states have call successors, (17) [2024-11-15 16:25:40,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 94 transitions. [2024-11-15 16:25:40,015 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 94 transitions. Word has length 72 [2024-11-15 16:25:40,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:25:40,015 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 94 transitions. [2024-11-15 16:25:40,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-15 16:25:40,016 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 94 transitions. [2024-11-15 16:25:40,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-15 16:25:40,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:25:40,020 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:25:40,045 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-15 16:25:40,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:40,221 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:25:40,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:25:40,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1928092350, now seen corresponding path program 1 times [2024-11-15 16:25:40,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:25:40,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275591702] [2024-11-15 16:25:40,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:40,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:25:40,314 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:25:40,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [69692493] [2024-11-15 16:25:40,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:40,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:40,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:25:40,317 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:25:40,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-15 16:25:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:25:40,489 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-15 16:25:40,491 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:25:40,509 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-15 16:25:40,511 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:25:40,511 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:25:40,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275591702] [2024-11-15 16:25:40,512 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:25:40,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69692493] [2024-11-15 16:25:40,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69692493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:25:40,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:25:40,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-15 16:25:40,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100395655] [2024-11-15 16:25:40,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:25:40,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-15 16:25:40,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:25:40,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-15 16:25:40,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-15 16:25:40,514 INFO L87 Difference]: Start difference. First operand 71 states and 94 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-15 16:25:40,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:25:40,558 INFO L93 Difference]: Finished difference Result 132 states and 182 transitions. [2024-11-15 16:25:40,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-15 16:25:40,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2024-11-15 16:25:40,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:25:40,560 INFO L225 Difference]: With dead ends: 132 [2024-11-15 16:25:40,560 INFO L226 Difference]: Without dead ends: 75 [2024-11-15 16:25:40,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-15 16:25:40,561 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 2 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:25:40,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 154 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:25:40,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-15 16:25:40,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2024-11-15 16:25:40,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 54 states have internal predecessors, (65), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (17), 12 states have call predecessors, (17), 12 states have call successors, (17) [2024-11-15 16:25:40,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 95 transitions. [2024-11-15 16:25:40,580 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 95 transitions. Word has length 73 [2024-11-15 16:25:40,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:25:40,581 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 95 transitions. [2024-11-15 16:25:40,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-15 16:25:40,581 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 95 transitions. [2024-11-15 16:25:40,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-15 16:25:40,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:25:40,584 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:25:40,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-15 16:25:40,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:40,785 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:25:40,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:25:40,785 INFO L85 PathProgramCache]: Analyzing trace with hash 137287748, now seen corresponding path program 1 times [2024-11-15 16:25:40,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:25:40,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112528382] [2024-11-15 16:25:40,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:40,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:25:40,851 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:25:40,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [963961661] [2024-11-15 16:25:40,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:40,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:40,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:25:40,854 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:25:40,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-15 16:25:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:25:41,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-15 16:25:41,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:25:41,086 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-15 16:25:41,086 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:25:41,086 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:25:41,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112528382] [2024-11-15 16:25:41,087 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:25:41,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963961661] [2024-11-15 16:25:41,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963961661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:25:41,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:25:41,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-15 16:25:41,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376399866] [2024-11-15 16:25:41,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:25:41,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-15 16:25:41,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:25:41,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-15 16:25:41,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-15 16:25:41,089 INFO L87 Difference]: Start difference. First operand 72 states and 95 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-15 16:25:41,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:25:41,147 INFO L93 Difference]: Finished difference Result 123 states and 163 transitions. [2024-11-15 16:25:41,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-15 16:25:41,148 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 81 [2024-11-15 16:25:41,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:25:41,149 INFO L225 Difference]: With dead ends: 123 [2024-11-15 16:25:41,149 INFO L226 Difference]: Without dead ends: 72 [2024-11-15 16:25:41,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-15 16:25:41,150 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:25:41,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 381 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:25:41,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-15 16:25:41,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-15 16:25:41,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 54 states have internal predecessors, (65), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2024-11-15 16:25:41,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 94 transitions. [2024-11-15 16:25:41,159 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 94 transitions. Word has length 81 [2024-11-15 16:25:41,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:25:41,159 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 94 transitions. [2024-11-15 16:25:41,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-15 16:25:41,160 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 94 transitions. [2024-11-15 16:25:41,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-15 16:25:41,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:25:41,161 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:25:41,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-15 16:25:41,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:41,361 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:25:41,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:25:41,362 INFO L85 PathProgramCache]: Analyzing trace with hash 416892704, now seen corresponding path program 1 times [2024-11-15 16:25:41,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:25:41,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400257829] [2024-11-15 16:25:41,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:41,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:25:41,451 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:25:41,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [132777035] [2024-11-15 16:25:41,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:41,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:41,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:25:41,456 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:25:41,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-15 16:25:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:25:41,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-15 16:25:41,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:25:41,759 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-15 16:25:41,759 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:25:41,759 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:25:41,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400257829] [2024-11-15 16:25:41,760 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:25:41,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132777035] [2024-11-15 16:25:41,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132777035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:25:41,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:25:41,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-15 16:25:41,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198749017] [2024-11-15 16:25:41,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:25:41,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-15 16:25:41,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:25:41,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-15 16:25:41,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:25:41,766 INFO L87 Difference]: Start difference. First operand 72 states and 94 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-15 16:25:41,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:25:41,898 INFO L93 Difference]: Finished difference Result 132 states and 171 transitions. [2024-11-15 16:25:41,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 16:25:41,899 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 83 [2024-11-15 16:25:41,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:25:41,901 INFO L225 Difference]: With dead ends: 132 [2024-11-15 16:25:41,901 INFO L226 Difference]: Without dead ends: 74 [2024-11-15 16:25:41,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-15 16:25:41,902 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 22 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-15 16:25:41,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 363 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-15 16:25:41,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-15 16:25:41,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2024-11-15 16:25:41,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 54 states have internal predecessors, (64), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2024-11-15 16:25:41,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 93 transitions. [2024-11-15 16:25:41,910 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 93 transitions. Word has length 83 [2024-11-15 16:25:41,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:25:41,910 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 93 transitions. [2024-11-15 16:25:41,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-15 16:25:41,911 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 93 transitions. [2024-11-15 16:25:41,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-15 16:25:41,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:25:41,912 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:25:41,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-15 16:25:42,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:42,113 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:25:42,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:25:42,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1552562003, now seen corresponding path program 1 times [2024-11-15 16:25:42,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:25:42,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177964775] [2024-11-15 16:25:42,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:42,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:25:42,193 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:25:42,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [881292372] [2024-11-15 16:25:42,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:42,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:42,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:25:42,196 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:25:42,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-15 16:25:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:25:42,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-15 16:25:42,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:25:42,522 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-15 16:25:42,522 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:25:42,522 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:25:42,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177964775] [2024-11-15 16:25:42,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:25:42,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881292372] [2024-11-15 16:25:42,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881292372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:25:42,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:25:42,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-15 16:25:42,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979299793] [2024-11-15 16:25:42,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:25:42,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-15 16:25:42,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:25:42,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-15 16:25:42,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-15 16:25:42,525 INFO L87 Difference]: Start difference. First operand 72 states and 93 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-15 16:25:42,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:25:42,737 INFO L93 Difference]: Finished difference Result 132 states and 170 transitions. [2024-11-15 16:25:42,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-15 16:25:42,738 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 85 [2024-11-15 16:25:42,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:25:42,740 INFO L225 Difference]: With dead ends: 132 [2024-11-15 16:25:42,740 INFO L226 Difference]: Without dead ends: 73 [2024-11-15 16:25:42,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-15 16:25:42,741 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 31 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-15 16:25:42,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 408 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-15 16:25:42,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-15 16:25:42,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2024-11-15 16:25:42,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 48 states have (on average 1.25) internal successors, (60), 50 states have internal predecessors, (60), 13 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-15 16:25:42,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 87 transitions. [2024-11-15 16:25:42,751 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 87 transitions. Word has length 85 [2024-11-15 16:25:42,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:25:42,751 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 87 transitions. [2024-11-15 16:25:42,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-15 16:25:42,752 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2024-11-15 16:25:42,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-15 16:25:42,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:25:42,753 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:25:42,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-15 16:25:42,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-15 16:25:42,958 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:25:42,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:25:42,958 INFO L85 PathProgramCache]: Analyzing trace with hash 572959972, now seen corresponding path program 2 times [2024-11-15 16:25:42,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:25:42,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461620944] [2024-11-15 16:25:42,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:42,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:25:43,028 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:25:43,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [656896475] [2024-11-15 16:25:43,028 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-15 16:25:43,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:43,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:25:43,031 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:25:43,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-15 16:25:43,259 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-15 16:25:43,260 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-15 16:25:43,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-15 16:25:43,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:25:43,307 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-15 16:25:43,308 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:25:43,308 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:25:43,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461620944] [2024-11-15 16:25:43,308 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:25:43,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656896475] [2024-11-15 16:25:43,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656896475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:25:43,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:25:43,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-15 16:25:43,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682795651] [2024-11-15 16:25:43,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:25:43,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-15 16:25:43,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:25:43,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-15 16:25:43,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:25:43,310 INFO L87 Difference]: Start difference. First operand 68 states and 87 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-15 16:25:43,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:25:43,365 INFO L93 Difference]: Finished difference Result 125 states and 163 transitions. [2024-11-15 16:25:43,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 16:25:43,366 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 94 [2024-11-15 16:25:43,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:25:43,367 INFO L225 Difference]: With dead ends: 125 [2024-11-15 16:25:43,367 INFO L226 Difference]: Without dead ends: 71 [2024-11-15 16:25:43,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:25:43,368 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:25:43,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 447 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:25:43,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-15 16:25:43,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-15 16:25:43,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 50 states have (on average 1.24) internal successors, (62), 53 states have internal predecessors, (62), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (17), 12 states have call predecessors, (17), 12 states have call successors, (17) [2024-11-15 16:25:43,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 92 transitions. [2024-11-15 16:25:43,376 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 92 transitions. Word has length 94 [2024-11-15 16:25:43,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:25:43,376 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 92 transitions. [2024-11-15 16:25:43,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-15 16:25:43,377 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 92 transitions. [2024-11-15 16:25:43,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-15 16:25:43,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:25:43,378 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:25:43,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-15 16:25:43,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:43,579 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:25:43,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:25:43,579 INFO L85 PathProgramCache]: Analyzing trace with hash -959329865, now seen corresponding path program 1 times [2024-11-15 16:25:43,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:25:43,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43377435] [2024-11-15 16:25:43,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:43,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:25:43,633 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:25:43,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1361426435] [2024-11-15 16:25:43,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:43,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:43,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:25:43,635 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:25:43,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-15 16:25:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:25:43,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-15 16:25:43,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:25:43,901 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-15 16:25:43,901 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:25:43,901 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:25:43,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43377435] [2024-11-15 16:25:43,901 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:25:43,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361426435] [2024-11-15 16:25:43,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361426435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:25:43,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:25:43,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-15 16:25:43,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850645616] [2024-11-15 16:25:43,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:25:43,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-15 16:25:43,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:25:43,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-15 16:25:43,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:25:43,903 INFO L87 Difference]: Start difference. First operand 71 states and 92 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-15 16:25:43,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:25:43,954 INFO L93 Difference]: Finished difference Result 121 states and 158 transitions. [2024-11-15 16:25:43,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-15 16:25:43,954 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 96 [2024-11-15 16:25:43,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:25:43,956 INFO L225 Difference]: With dead ends: 121 [2024-11-15 16:25:43,956 INFO L226 Difference]: Without dead ends: 71 [2024-11-15 16:25:43,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-15 16:25:43,957 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 446 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 [2024-11-15 16:25:43,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 446 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:25:43,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-15 16:25:43,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2024-11-15 16:25:43,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 51 states have internal predecessors, (61), 13 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-15 16:25:43,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2024-11-15 16:25:43,964 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 88 transitions. Word has length 96 [2024-11-15 16:25:43,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:25:43,965 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 88 transitions. [2024-11-15 16:25:43,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-15 16:25:43,965 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2024-11-15 16:25:43,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-15 16:25:43,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:25:43,966 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-15 16:25:43,988 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-15 16:25:44,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-15 16:25:44,167 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:25:44,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:25:44,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1252523644, now seen corresponding path program 1 times [2024-11-15 16:25:44,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:25:44,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808566951] [2024-11-15 16:25:44,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:44,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:25:44,222 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:25:44,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1781496854] [2024-11-15 16:25:44,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:44,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:44,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:25:44,224 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:25:44,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-15 16:25:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:25:44,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-15 16:25:44,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:25:44,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-15 16:25:44,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-15 16:25:48,911 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1| (_ BitVec 64)) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$#1.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1|) |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1|)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1| (_ BitVec 64)) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1| (_ BitVec 64))) (not (= (select (select |c_#memory_$Pointer$#1.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1|) |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1|) (_ bv0 64))))) is different from true [2024-11-15 16:25:49,166 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 41 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-15 16:25:49,166 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 16:25:49,545 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-15 16:25:49,545 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:25:49,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808566951] [2024-11-15 16:25:49,545 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:25:49,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781496854] [2024-11-15 16:25:49,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781496854] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-15 16:25:49,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-15 16:25:49,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 17 [2024-11-15 16:25:49,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583269749] [2024-11-15 16:25:49,546 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-15 16:25:49,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-15 16:25:49,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:25:49,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-15 16:25:49,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=199, Unknown=1, NotChecked=28, Total=272 [2024-11-15 16:25:49,548 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. Second operand has 17 states, 17 states have (on average 6.235294117647059) internal successors, (106), 17 states have internal predecessors, (106), 5 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-15 16:25:50,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:25:50,794 INFO L93 Difference]: Finished difference Result 168 states and 230 transitions. [2024-11-15 16:25:50,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-15 16:25:50,795 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.235294117647059) internal successors, (106), 17 states have internal predecessors, (106), 5 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 98 [2024-11-15 16:25:50,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:25:50,797 INFO L225 Difference]: With dead ends: 168 [2024-11-15 16:25:50,797 INFO L226 Difference]: Without dead ends: 113 [2024-11-15 16:25:50,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 182 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=76, Invalid=347, Unknown=1, NotChecked=38, Total=462 [2024-11-15 16:25:50,799 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 60 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 269 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:25:50,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 823 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 460 Invalid, 1 Unknown, 269 Unchecked, 1.0s Time] [2024-11-15 16:25:50,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-15 16:25:50,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 87. [2024-11-15 16:25:50,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 67 states have internal predecessors, (83), 14 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-15 16:25:50,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 113 transitions. [2024-11-15 16:25:50,809 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 113 transitions. Word has length 98 [2024-11-15 16:25:50,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:25:50,809 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 113 transitions. [2024-11-15 16:25:50,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.235294117647059) internal successors, (106), 17 states have internal predecessors, (106), 5 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-15 16:25:50,810 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 113 transitions. [2024-11-15 16:25:50,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-15 16:25:50,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:25:50,811 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-15 16:25:50,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-15 16:25:51,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-15 16:25:51,011 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:25:51,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:25:51,012 INFO L85 PathProgramCache]: Analyzing trace with hash 479996356, now seen corresponding path program 1 times [2024-11-15 16:25:51,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:25:51,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146241021] [2024-11-15 16:25:51,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:51,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:25:51,063 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:25:51,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [814283114] [2024-11-15 16:25:51,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:51,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:51,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:25:51,068 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:25:51,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-15 16:25:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:25:51,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-15 16:25:51,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:25:51,342 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-15 16:25:51,342 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:25:51,342 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:25:51,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146241021] [2024-11-15 16:25:51,342 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:25:51,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814283114] [2024-11-15 16:25:51,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814283114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:25:51,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:25:51,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-15 16:25:51,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737798674] [2024-11-15 16:25:51,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:25:51,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-15 16:25:51,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:25:51,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-15 16:25:51,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-15 16:25:51,344 INFO L87 Difference]: Start difference. First operand 87 states and 113 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-15 16:25:51,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:25:51,370 INFO L93 Difference]: Finished difference Result 161 states and 216 transitions. [2024-11-15 16:25:51,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-15 16:25:51,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 98 [2024-11-15 16:25:51,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:25:51,373 INFO L225 Difference]: With dead ends: 161 [2024-11-15 16:25:51,373 INFO L226 Difference]: Without dead ends: 88 [2024-11-15 16:25:51,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-15 16:25:51,374 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:25:51,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:25:51,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-15 16:25:51,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2024-11-15 16:25:51,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 67 states have internal predecessors, (82), 14 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-15 16:25:51,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 112 transitions. [2024-11-15 16:25:51,388 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 112 transitions. Word has length 98 [2024-11-15 16:25:51,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:25:51,388 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 112 transitions. [2024-11-15 16:25:51,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-15 16:25:51,388 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2024-11-15 16:25:51,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-15 16:25:51,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:25:51,389 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-15 16:25:51,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-15 16:25:51,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-15 16:25:51,590 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:25:51,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:25:51,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1800233476, now seen corresponding path program 1 times [2024-11-15 16:25:51,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:25:51,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009962702] [2024-11-15 16:25:51,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:51,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:25:51,643 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:25:51,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [205120762] [2024-11-15 16:25:51,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:51,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:51,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:25:51,645 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:25:51,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-15 16:25:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:25:51,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-15 16:25:51,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:25:51,886 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-15 16:25:51,886 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:25:51,886 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:25:51,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009962702] [2024-11-15 16:25:51,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:25:51,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205120762] [2024-11-15 16:25:51,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205120762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:25:51,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:25:51,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-15 16:25:51,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179310503] [2024-11-15 16:25:51,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:25:51,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-15 16:25:51,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:25:51,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-15 16:25:51,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-15 16:25:51,889 INFO L87 Difference]: Start difference. First operand 87 states and 112 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-15 16:25:51,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:25:51,915 INFO L93 Difference]: Finished difference Result 160 states and 215 transitions. [2024-11-15 16:25:51,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-15 16:25:51,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 98 [2024-11-15 16:25:51,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:25:51,917 INFO L225 Difference]: With dead ends: 160 [2024-11-15 16:25:51,917 INFO L226 Difference]: Without dead ends: 87 [2024-11-15 16:25:51,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-15 16:25:51,918 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-15 16:25:51,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 235 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-15 16:25:51,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-15 16:25:51,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 84. [2024-11-15 16:25:51,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.2419354838709677) internal successors, (77), 64 states have internal predecessors, (77), 14 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-15 16:25:51,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 107 transitions. [2024-11-15 16:25:51,926 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 107 transitions. Word has length 98 [2024-11-15 16:25:51,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:25:51,926 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 107 transitions. [2024-11-15 16:25:51,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-15 16:25:51,927 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 107 transitions. [2024-11-15 16:25:51,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-15 16:25:51,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:25:51,928 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:25:51,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-15 16:25:52,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-15 16:25:52,129 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:25:52,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:25:52,129 INFO L85 PathProgramCache]: Analyzing trace with hash -596272544, now seen corresponding path program 1 times [2024-11-15 16:25:52,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:25:52,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886977893] [2024-11-15 16:25:52,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:52,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:25:52,181 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:25:52,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [255897303] [2024-11-15 16:25:52,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:25:52,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:25:52,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:25:52,184 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:25:52,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-15 16:25:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:25:52,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-15 16:25:52,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:25:52,472 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 [2024-11-15 16:25:52,476 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 [2024-11-15 16:25:53,764 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 35 proven. 25 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-15 16:25:53,765 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 16:25:54,591 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 10 proven. 33 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-15 16:25:54,591 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:25:54,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886977893] [2024-11-15 16:25:54,591 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:25:54,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255897303] [2024-11-15 16:25:54,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255897303] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-15 16:25:54,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-15 16:25:54,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 21 [2024-11-15 16:25:54,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747965384] [2024-11-15 16:25:54,592 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-15 16:25:54,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-15 16:25:54,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:25:54,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-15 16:25:54,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2024-11-15 16:25:54,594 INFO L87 Difference]: Start difference. First operand 84 states and 107 transitions. Second operand has 21 states, 21 states have (on average 6.0) internal successors, (126), 19 states have internal predecessors, (126), 10 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-15 16:25:59,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:26:03,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:26:07,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:26:11,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:26:15,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:26:17,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:26:17,329 INFO L93 Difference]: Finished difference Result 201 states and 253 transitions. [2024-11-15 16:26:17,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-15 16:26:17,331 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.0) internal successors, (126), 19 states have internal predecessors, (126), 10 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) Word has length 100 [2024-11-15 16:26:17,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:26:17,332 INFO L225 Difference]: With dead ends: 201 [2024-11-15 16:26:17,332 INFO L226 Difference]: Without dead ends: 129 [2024-11-15 16:26:17,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 175 SyntacticMatches, 7 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=146, Invalid=666, Unknown=0, NotChecked=0, Total=812 [2024-11-15 16:26:17,333 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 84 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 38 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2024-11-15 16:26:17,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 612 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 395 Invalid, 5 Unknown, 0 Unchecked, 22.3s Time] [2024-11-15 16:26:17,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-15 16:26:17,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 125. [2024-11-15 16:26:17,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 97 states have (on average 1.2164948453608246) internal successors, (118), 99 states have internal predecessors, (118), 16 states have call successors, (16), 10 states have call predecessors, (16), 11 states have return successors, (19), 15 states have call predecessors, (19), 15 states have call successors, (19) [2024-11-15 16:26:17,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 153 transitions. [2024-11-15 16:26:17,349 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 153 transitions. Word has length 100 [2024-11-15 16:26:17,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:26:17,350 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 153 transitions. [2024-11-15 16:26:17,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.0) internal successors, (126), 19 states have internal predecessors, (126), 10 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-15 16:26:17,350 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 153 transitions. [2024-11-15 16:26:17,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-15 16:26:17,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:26:17,351 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-15 16:26:17,372 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-15 16:26:17,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:26:17,552 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:26:17,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:26:17,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1405619170, now seen corresponding path program 1 times [2024-11-15 16:26:17,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:26:17,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49995903] [2024-11-15 16:26:17,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:26:17,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:26:17,605 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:26:17,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [258295797] [2024-11-15 16:26:17,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:26:17,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:26:17,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:26:17,608 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:26:17,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-15 16:26:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:26:17,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-15 16:26:17,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:26:18,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2024-11-15 16:26:18,049 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 8 treesize of output 1 [2024-11-15 16:26:19,440 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-15 16:26:19,441 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-15 16:26:19,441 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:26:19,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49995903] [2024-11-15 16:26:19,441 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:26:19,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258295797] [2024-11-15 16:26:19,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258295797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-15 16:26:19,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-15 16:26:19,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-15 16:26:19,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852344917] [2024-11-15 16:26:19,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-15 16:26:19,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-15 16:26:19,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:26:19,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-15 16:26:19,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-15 16:26:19,443 INFO L87 Difference]: Start difference. First operand 125 states and 153 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-15 16:26:21,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:26:21,428 INFO L93 Difference]: Finished difference Result 301 states and 374 transitions. [2024-11-15 16:26:21,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-15 16:26:21,429 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 100 [2024-11-15 16:26:21,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:26:21,431 INFO L225 Difference]: With dead ends: 301 [2024-11-15 16:26:21,431 INFO L226 Difference]: Without dead ends: 238 [2024-11-15 16:26:21,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 82 SyntacticMatches, 8 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-15 16:26:21,432 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 46 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-15 16:26:21,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 406 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-15 16:26:21,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-15 16:26:21,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 234. [2024-11-15 16:26:21,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 183 states have (on average 1.2240437158469946) internal successors, (224), 187 states have internal predecessors, (224), 30 states have call successors, (30), 18 states have call predecessors, (30), 20 states have return successors, (36), 28 states have call predecessors, (36), 28 states have call successors, (36) [2024-11-15 16:26:21,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 290 transitions. [2024-11-15 16:26:21,469 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 290 transitions. Word has length 100 [2024-11-15 16:26:21,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:26:21,470 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 290 transitions. [2024-11-15 16:26:21,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-15 16:26:21,471 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 290 transitions. [2024-11-15 16:26:21,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-15 16:26:21,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:26:21,474 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-15 16:26:21,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-15 16:26:21,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-15 16:26:21,679 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:26:21,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:26:21,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1798646180, now seen corresponding path program 1 times [2024-11-15 16:26:21,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:26:21,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572810202] [2024-11-15 16:26:21,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:26:21,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:26:21,734 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:26:21,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1706333163] [2024-11-15 16:26:21,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:26:21,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:26:21,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:26:21,737 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:26:21,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-15 16:26:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:26:21,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-15 16:26:22,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:26:22,129 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 [2024-11-15 16:26:22,136 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 [2024-11-15 16:26:24,503 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 32 proven. 28 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-15 16:26:24,503 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 16:26:26,132 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 10 proven. 33 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-15 16:26:26,133 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:26:26,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572810202] [2024-11-15 16:26:26,133 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:26:26,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706333163] [2024-11-15 16:26:26,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706333163] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-15 16:26:26,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-15 16:26:26,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 25 [2024-11-15 16:26:26,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071094897] [2024-11-15 16:26:26,133 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-15 16:26:26,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-15 16:26:26,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-15 16:26:26,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-15 16:26:26,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2024-11-15 16:26:26,135 INFO L87 Difference]: Start difference. First operand 234 states and 290 transitions. Second operand has 25 states, 25 states have (on average 4.92) internal successors, (123), 23 states have internal predecessors, (123), 10 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-15 16:26:30,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:26:34,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:26:38,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-15 16:26:41,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-15 16:26:41,032 INFO L93 Difference]: Finished difference Result 356 states and 448 transitions. [2024-11-15 16:26:41,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-15 16:26:41,033 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.92) internal successors, (123), 23 states have internal predecessors, (123), 10 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) Word has length 100 [2024-11-15 16:26:41,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-15 16:26:41,034 INFO L225 Difference]: With dead ends: 356 [2024-11-15 16:26:41,034 INFO L226 Difference]: Without dead ends: 238 [2024-11-15 16:26:41,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 170 SyntacticMatches, 7 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=183, Invalid=873, Unknown=0, NotChecked=0, Total=1056 [2024-11-15 16:26:41,036 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 106 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 45 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2024-11-15 16:26:41,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 827 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 571 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2024-11-15 16:26:41,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-15 16:26:41,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 234. [2024-11-15 16:26:41,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 183 states have (on average 1.2131147540983607) internal successors, (222), 187 states have internal predecessors, (222), 30 states have call successors, (30), 18 states have call predecessors, (30), 20 states have return successors, (36), 28 states have call predecessors, (36), 28 states have call successors, (36) [2024-11-15 16:26:41,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 288 transitions. [2024-11-15 16:26:41,066 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 288 transitions. Word has length 100 [2024-11-15 16:26:41,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-15 16:26:41,066 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 288 transitions. [2024-11-15 16:26:41,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.92) internal successors, (123), 23 states have internal predecessors, (123), 10 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-15 16:26:41,067 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 288 transitions. [2024-11-15 16:26:41,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-15 16:26:41,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-15 16:26:41,068 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-15 16:26:41,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-15 16:26:41,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-15 16:26:41,269 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-15 16:26:41,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-15 16:26:41,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1540480742, now seen corresponding path program 1 times [2024-11-15 16:26:41,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-15 16:26:41,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413339277] [2024-11-15 16:26:41,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:26:41,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-15 16:26:41,317 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported internal sort: RoundingMode [2024-11-15 16:26:41,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766495811] [2024-11-15 16:26:41,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:26:41,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-15 16:26:41,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-15 16:26:41,319 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-15 16:26:41,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-15 16:26:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:26:41,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-15 16:26:41,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:26:41,668 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 13 treesize of output 1 [2024-11-15 16:26:44,052 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 28 proven. 34 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-15 16:26:44,052 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-15 16:26:44,696 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-15 16:26:44,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413339277] [2024-11-15 16:26:44,696 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-15 16:26:44,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766495811] [2024-11-15 16:26:44,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766495811] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-15 16:26:44,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [5584145] [2024-11-15 16:26:44,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-15 16:26:44,697 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-15 16:26:44,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-15 16:26:44,711 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-15 16:26:44,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-15 16:26:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-15 16:26:45,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-15 16:26:45,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-15 16:26:45,394 INFO L349 Elim1Store]: treesize reduction 66, result has 39.4 percent of original size [2024-11-15 16:26:45,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 128 [2024-11-15 16:26:45,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2024-11-15 16:26:45,432 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-15 16:26:45,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2024-11-15 16:26:45,548 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-15 16:26:45,549 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 41 treesize of output 13 [2024-11-15 16:26:45,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-15 16:26:45,593 WARN L873 $PredicateComparison]: unable to prove that (and (= (_ bv0 64) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset|) (not (= |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base| (_ bv0 64))) (let ((.cse3 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|))) (or (exists ((v_DerPreprocessor_2 (Array (_ BitVec 64) (_ BitVec 64))) (v_DerPreprocessor_1 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7| (_ BitVec 64))) (let ((.cse1 (bvadd (_ bv24 64) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7|))) (let ((.cse2 (select .cse3 .cse1))) (let ((.cse0 (select (store (store |c_#memory_$Pointer$#1.base| .cse2 v_DerPreprocessor_1) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base| v_DerPreprocessor_2) .cse2))) (and (= v_DerPreprocessor_2 (store .cse0 .cse1 .cse2)) (= .cse0 (select |c_#memory_$Pointer$#1.base| .cse2))))))) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7| (_ BitVec 64))) (= |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base| (select .cse3 (bvadd (_ bv24 64) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7|))))))) is different from true [2024-11-15 16:26:45,689 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39| (_ BitVec 64))) (and (exists ((v_DerPreprocessor_2 (Array (_ BitVec 64) (_ BitVec 64))) (v_DerPreprocessor_1 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7| (_ BitVec 64))) (let ((.cse2 (bvadd (_ bv24 64) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|) .cse2))) (let ((.cse0 (select (store (store |c_#memory_$Pointer$#1.base| .cse1 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39| v_DerPreprocessor_2) .cse1))) (and (= .cse0 (select |c_#memory_$Pointer$#1.base| .cse1)) (= v_DerPreprocessor_2 (store .cse0 .cse2 .cse1))))))) (not (= (_ bv0 64) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|)))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39| (_ BitVec 64))) (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7| (_ BitVec 64))) (= (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|) (bvadd (_ bv24 64) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7|)) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|)) (not (= (_ bv0 64) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|))))) is different from true [2024-11-15 16:26:46,462 WARN L873 $PredicateComparison]: unable to prove that (and (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39| (_ BitVec 64))) (and (exists ((v_DerPreprocessor_2 (Array (_ BitVec 64) (_ BitVec 64))) (v_DerPreprocessor_1 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7| (_ BitVec 64))) (let ((.cse2 (bvadd (_ bv24 64) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|) .cse2))) (let ((.cse0 (select (store (store |c_#memory_$Pointer$#1.base| .cse1 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39| v_DerPreprocessor_2) .cse1))) (and (= .cse0 (select |c_#memory_$Pointer$#1.base| .cse1)) (= v_DerPreprocessor_2 (store .cse0 .cse2 .cse1))))))) (not (= (_ bv0 64) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|)))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39| (_ BitVec 64))) (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7| (_ BitVec 64))) (= (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|) (bvadd (_ bv24 64) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7|)) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|)) (not (= (_ bv0 64) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|))))) (= |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset| |c_aws_linked_list_is_valid_#in~list#1.offset|) (= |c_aws_linked_list_is_valid_#in~list#1.base| |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base|)) is different from true [2024-11-15 16:26:46,546 WARN L873 $PredicateComparison]: unable to prove that (and (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39| (_ BitVec 64))) (and (exists ((v_DerPreprocessor_2 (Array (_ BitVec 64) (_ BitVec 64))) (v_DerPreprocessor_1 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7| (_ BitVec 64))) (let ((.cse2 (bvadd (_ bv24 64) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|) .cse2))) (let ((.cse0 (select (store (store |c_#memory_$Pointer$#1.base| .cse1 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39| v_DerPreprocessor_2) .cse1))) (and (= .cse0 (select |c_#memory_$Pointer$#1.base| .cse1)) (= v_DerPreprocessor_2 (store .cse0 .cse2 .cse1))))))) (not (= (_ bv0 64) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|)))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39| (_ BitVec 64))) (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7| (_ BitVec 64))) (= (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|) (bvadd (_ bv24 64) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7|)) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|)) (not (= (_ bv0 64) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|))))) (= |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base| |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base|) (= |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset| |c_aws_linked_list_is_valid_#in~list#1.offset|) (= |c_aws_linked_list_is_valid_#in~list#1.base| |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base|)) is different from true [2024-11-15 16:26:48,924 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|))) (and (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39| (_ BitVec 64))) (and (exists ((v_DerPreprocessor_2 (Array (_ BitVec 64) (_ BitVec 64))) (v_DerPreprocessor_1 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7| (_ BitVec 64))) (let ((.cse2 (bvadd (_ bv24 64) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|) .cse2))) (let ((.cse0 (select (store (store |c_#memory_$Pointer$#1.base| .cse1 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39| v_DerPreprocessor_2) .cse1))) (and (= .cse0 (select |c_#memory_$Pointer$#1.base| .cse1)) (= v_DerPreprocessor_2 (store .cse0 .cse2 .cse1))))))) (not (= (_ bv0 64) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|)))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39| (_ BitVec 64))) (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7| (_ BitVec 64))) (= (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|) (bvadd (_ bv24 64) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7|)) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|)) (not (= (_ bv0 64) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|))))) (= (_ bv0 64) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset|) (not (= |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base| (_ bv0 64))) (= |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base| (select .cse3 (_ bv0 64))) (or (exists ((v_DerPreprocessor_2 (Array (_ BitVec 64) (_ BitVec 64))) (v_DerPreprocessor_1 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7| (_ BitVec 64))) (let ((.cse5 (bvadd (_ bv24 64) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7|))) (let ((.cse6 (select .cse3 .cse5))) (let ((.cse4 (select (store (store |c_#memory_$Pointer$#1.base| .cse6 v_DerPreprocessor_1) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base| v_DerPreprocessor_2) .cse6))) (and (= v_DerPreprocessor_2 (store .cse4 .cse5 .cse6)) (= .cse4 (select |c_#memory_$Pointer$#1.base| .cse6))))))) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7| (_ BitVec 64))) (= |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base| (select .cse3 (bvadd (_ bv24 64) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7|))))))) is different from true [2024-11-15 16:27:02,389 WARN L873 $PredicateComparison]: unable to prove that (and (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39| (_ BitVec 64))) (and (exists ((v_DerPreprocessor_2 (Array (_ BitVec 64) (_ BitVec 64))) (v_DerPreprocessor_1 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7| (_ BitVec 64))) (let ((.cse2 (bvadd (_ bv24 64) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|) .cse2))) (let ((.cse0 (select (store (store |c_#memory_$Pointer$#1.base| .cse1 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39| v_DerPreprocessor_2) .cse1))) (and (= .cse0 (select |c_#memory_$Pointer$#1.base| .cse1)) (= v_DerPreprocessor_2 (store .cse0 .cse2 .cse1))))))) (not (= (_ bv0 64) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|)))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39| (_ BitVec 64))) (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7| (_ BitVec 64))) (= (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|) (bvadd (_ bv24 64) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7|)) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|)) (not (= (_ bv0 64) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_39|))))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_26| (_ BitVec 64))) (let ((.cse6 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_26|))) (and (exists ((v_DerPreprocessor_2 (Array (_ BitVec 64) (_ BitVec 64))) (v_DerPreprocessor_1 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7| (_ BitVec 64))) (let ((.cse4 (bvadd (_ bv24 64) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7|))) (let ((.cse5 (select .cse6 .cse4))) (let ((.cse3 (select (store (store |c_#memory_$Pointer$#1.base| .cse5 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_26| v_DerPreprocessor_2) .cse5))) (and (= v_DerPreprocessor_2 (store .cse3 .cse4 .cse5)) (= .cse3 (select |c_#memory_$Pointer$#1.base| .cse5))))))) (not (= (_ bv0 64) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_26|)) (= (select .cse6 (_ bv0 64)) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_26|)))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_26| (_ BitVec 64))) (let ((.cse7 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_26|))) (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7| (_ BitVec 64))) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_26| (select .cse7 (bvadd (_ bv24 64) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7|)))) (not (= (_ bv0 64) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_26|)) (= (select .cse7 (_ bv0 64)) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_26|))))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_40| (_ BitVec 64))) (let ((.cse8 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_40|))) (and (= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_40| (select .cse8 (_ bv0 64))) (exists ((v_DerPreprocessor_2 (Array (_ BitVec 64) (_ BitVec 64))) (v_DerPreprocessor_1 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7| (_ BitVec 64))) (let ((.cse10 (bvadd (_ bv24 64) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7|))) (let ((.cse11 (select .cse8 .cse10))) (let ((.cse9 (select (store (store |c_#memory_$Pointer$#1.base| .cse11 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_40| v_DerPreprocessor_2) .cse11))) (and (= v_DerPreprocessor_2 (store .cse9 .cse10 .cse11)) (= (select |c_#memory_$Pointer$#1.base| .cse11) .cse9)))))) (not (= (_ bv0 64) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_40|))))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_40| (_ BitVec 64))) (let ((.cse12 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_40|))) (and (= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_40| (select .cse12 (_ bv0 64))) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7| (_ BitVec 64))) (= (select .cse12 (bvadd (_ bv24 64) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_7|)) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_40|)) (not (= (_ bv0 64) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_40|))))))) is different from true