/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-pthread/cs_dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 18:36:54,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 18:36:54,769 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 18:36:54,772 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 18:36:54,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 18:36:54,786 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 18:36:54,786 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 18:36:54,787 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 18:36:54,787 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 18:36:54,787 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 18:36:54,787 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 18:36:54,788 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 18:36:54,788 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 18:36:54,788 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 18:36:54,789 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 18:36:54,789 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 18:36:54,789 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 18:36:54,789 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 18:36:54,789 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 18:36:54,790 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 18:36:54,790 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 18:36:54,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 18:36:54,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 18:36:54,791 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 18:36:54,791 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 18:36:54,791 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 18:36:54,792 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 18:36:54,792 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 18:36:54,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 18:36:54,792 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 18:36:54,792 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 18:36:54,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 18:36:54,793 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 18:36:54,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 18:36:54,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:36:54,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 18:36:54,794 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 18:36:54,794 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 18:36:54,794 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 18:36:54,794 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 18:36:54,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 18:36:54,795 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 18:36:54,795 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 18:36:54,795 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 18:36:54,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 18:36:54,795 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 18:36:54,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 18:36:55,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 18:36:55,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 18:36:55,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 18:36:55,024 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 18:36:55,025 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 18:36:55,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_dekker.i [2023-12-16 18:36:56,213 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 18:36:56,462 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 18:36:56,463 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_dekker.i [2023-12-16 18:36:56,475 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a19ea87c/09a8803fb8e24249a95ec3b7bc3754c8/FLAG672edeead [2023-12-16 18:36:56,791 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a19ea87c/09a8803fb8e24249a95ec3b7bc3754c8 [2023-12-16 18:36:56,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 18:36:56,794 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 18:36:56,795 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 18:36:56,795 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 18:36:56,798 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 18:36:56,799 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:36:56" (1/1) ... [2023-12-16 18:36:56,800 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52073a3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:56, skipping insertion in model container [2023-12-16 18:36:56,800 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:36:56" (1/1) ... [2023-12-16 18:36:56,830 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 18:36:57,024 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_dekker.i[23603,23616] [2023-12-16 18:36:57,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:36:57,134 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 18:36:57,155 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_dekker.i[23603,23616] [2023-12-16 18:36:57,197 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:36:57,226 INFO L206 MainTranslator]: Completed translation [2023-12-16 18:36:57,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:57 WrapperNode [2023-12-16 18:36:57,227 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 18:36:57,228 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 18:36:57,228 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 18:36:57,228 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 18:36:57,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:57" (1/1) ... [2023-12-16 18:36:57,269 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:57" (1/1) ... [2023-12-16 18:36:57,321 INFO L138 Inliner]: procedures = 149, calls = 300, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 448 [2023-12-16 18:36:57,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 18:36:57,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 18:36:57,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 18:36:57,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 18:36:57,333 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:57" (1/1) ... [2023-12-16 18:36:57,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:57" (1/1) ... [2023-12-16 18:36:57,339 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:57" (1/1) ... [2023-12-16 18:36:57,370 INFO L175 MemorySlicer]: Split 150 memory accesses to 17 slices as follows [2, 8, 8, 5, 29, 21, 7, 7, 5, 9, 7, 6, 0, 5, 5, 13, 13]. 19 percent of accesses are in the largest equivalence class. The 40 initializations are split as follows [2, 3, 3, 0, 9, 9, 3, 3, 0, 3, 3, 2, 0, 0, 0, 0, 0]. The 37 writes are split as follows [0, 2, 2, 1, 11, 6, 2, 2, 1, 2, 2, 2, 0, 1, 1, 1, 1]. [2023-12-16 18:36:57,370 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:57" (1/1) ... [2023-12-16 18:36:57,371 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:57" (1/1) ... [2023-12-16 18:36:57,401 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:57" (1/1) ... [2023-12-16 18:36:57,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:57" (1/1) ... [2023-12-16 18:36:57,414 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:57" (1/1) ... [2023-12-16 18:36:57,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:57" (1/1) ... [2023-12-16 18:36:57,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 18:36:57,444 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 18:36:57,445 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 18:36:57,445 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 18:36:57,445 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:57" (1/1) ... [2023-12-16 18:36:57,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:36:57,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 18:36:57,484 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) [2023-12-16 18:36:57,533 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 [2023-12-16 18:36:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-16 18:36:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-16 18:36:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-12-16 18:36:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-12-16 18:36:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-12-16 18:36:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-12-16 18:36:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2023-12-16 18:36:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2023-12-16 18:36:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2023-12-16 18:36:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2023-12-16 18:36:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#10 [2023-12-16 18:36:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#11 [2023-12-16 18:36:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#12 [2023-12-16 18:36:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#13 [2023-12-16 18:36:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#14 [2023-12-16 18:36:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#15 [2023-12-16 18:36:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#16 [2023-12-16 18:36:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-16 18:36:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-16 18:36:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-16 18:36:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-16 18:36:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-12-16 18:36:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-12-16 18:36:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-12-16 18:36:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-12-16 18:36:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2023-12-16 18:36:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2023-12-16 18:36:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2023-12-16 18:36:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2023-12-16 18:36:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2023-12-16 18:36:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2023-12-16 18:36:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2023-12-16 18:36:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2023-12-16 18:36:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2023-12-16 18:36:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 18:36:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 18:36:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 18:36:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-16 18:36:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-16 18:36:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-16 18:36:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-16 18:36:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-12-16 18:36:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-12-16 18:36:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-12-16 18:36:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-12-16 18:36:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-12-16 18:36:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-12-16 18:36:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-12-16 18:36:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-12-16 18:36:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-12-16 18:36:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-12-16 18:36:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-12-16 18:36:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-12-16 18:36:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-12-16 18:36:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-12-16 18:36:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-12-16 18:36:57,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-12-16 18:36:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-16 18:36:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-16 18:36:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-16 18:36:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-12-16 18:36:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-12-16 18:36:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-12-16 18:36:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-12-16 18:36:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-12-16 18:36:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-12-16 18:36:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-12-16 18:36:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-12-16 18:36:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-12-16 18:36:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-12-16 18:36:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-12-16 18:36:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-12-16 18:36:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-12-16 18:36:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-12-16 18:36:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-12-16 18:36:57,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-12-16 18:36:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-16 18:36:57,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-16 18:36:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-16 18:36:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-16 18:36:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-12-16 18:36:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-12-16 18:36:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#10 [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#11 [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#12 [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#13 [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#14 [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#15 [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#16 [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-12-16 18:36:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-12-16 18:36:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-12-16 18:36:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2023-12-16 18:36:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2023-12-16 18:36:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2023-12-16 18:36:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2023-12-16 18:36:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2023-12-16 18:36:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2023-12-16 18:36:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2023-12-16 18:36:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2023-12-16 18:36:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#15 [2023-12-16 18:36:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#16 [2023-12-16 18:36:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-12-16 18:36:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-12-16 18:36:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-12-16 18:36:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-12-16 18:36:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-12-16 18:36:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-12-16 18:36:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-12-16 18:36:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-12-16 18:36:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-12-16 18:36:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-12-16 18:36:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-12-16 18:36:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-12-16 18:36:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-12-16 18:36:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-12-16 18:36:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-12-16 18:36:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-12-16 18:36:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-12-16 18:36:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 18:36:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 18:36:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 18:36:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 18:36:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 18:36:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-16 18:36:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-16 18:36:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-16 18:36:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-16 18:36:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-16 18:36:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-16 18:36:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-16 18:36:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-16 18:36:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-16 18:36:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-16 18:36:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-16 18:36:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-16 18:36:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-16 18:36:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-16 18:36:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-12-16 18:36:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-12-16 18:36:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2023-12-16 18:36:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2023-12-16 18:36:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2023-12-16 18:36:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2023-12-16 18:36:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2023-12-16 18:36:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2023-12-16 18:36:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2023-12-16 18:36:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11 [2023-12-16 18:36:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#12 [2023-12-16 18:36:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#13 [2023-12-16 18:36:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#14 [2023-12-16 18:36:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#15 [2023-12-16 18:36:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#16 [2023-12-16 18:36:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-12-16 18:36:57,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-12-16 18:36:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 18:36:57,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 18:36:57,845 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 18:36:57,846 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 18:37:03,582 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 18:37:03,631 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 18:37:03,631 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 18:37:03,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:37:03 BoogieIcfgContainer [2023-12-16 18:37:03,632 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 18:37:03,634 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 18:37:03,634 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 18:37:03,636 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 18:37:03,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:36:56" (1/3) ... [2023-12-16 18:37:03,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@967ee79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:37:03, skipping insertion in model container [2023-12-16 18:37:03,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:57" (2/3) ... [2023-12-16 18:37:03,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@967ee79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:37:03, skipping insertion in model container [2023-12-16 18:37:03,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:37:03" (3/3) ... [2023-12-16 18:37:03,638 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_dekker.i [2023-12-16 18:37:03,650 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 18:37:03,650 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 18:37:03,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 18:37:03,717 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@54744aaa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 18:37:03,717 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 18:37:03,721 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 71 states have (on average 1.3661971830985915) internal successors, (97), 72 states have internal predecessors, (97), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-16 18:37:03,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 18:37:03,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:03,745 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:03,745 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:03,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:03,753 INFO L85 PathProgramCache]: Analyzing trace with hash 405785806, now seen corresponding path program 1 times [2023-12-16 18:37:03,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:03,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42984426] [2023-12-16 18:37:03,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:03,766 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:03,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:03,782 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:37:03,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 18:37:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:04,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 18:37:04,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:04,345 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2023-12-16 18:37:04,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:37:04,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:04,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42984426] [2023-12-16 18:37:04,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42984426] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:37:04,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:37:04,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 18:37:04,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882688987] [2023-12-16 18:37:04,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:37:04,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 18:37:04,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:04,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 18:37:04,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 18:37:04,370 INFO L87 Difference]: Start difference. First operand has 113 states, 71 states have (on average 1.3661971830985915) internal successors, (97), 72 states have internal predecessors, (97), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 18:37:04,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:04,614 INFO L93 Difference]: Finished difference Result 225 states and 366 transitions. [2023-12-16 18:37:04,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 18:37:04,617 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 131 [2023-12-16 18:37:04,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:04,622 INFO L225 Difference]: With dead ends: 225 [2023-12-16 18:37:04,622 INFO L226 Difference]: Without dead ends: 111 [2023-12-16 18:37:04,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 18:37:04,627 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:04,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:37:04,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-12-16 18:37:04,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-12-16 18:37:04,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 70 states have (on average 1.3) internal successors, (91), 70 states have internal predecessors, (91), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-16 18:37:04,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 161 transitions. [2023-12-16 18:37:04,668 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 161 transitions. Word has length 131 [2023-12-16 18:37:04,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:04,668 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 161 transitions. [2023-12-16 18:37:04,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 18:37:04,668 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 161 transitions. [2023-12-16 18:37:04,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 18:37:04,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:04,671 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:04,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 18:37:04,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:04,872 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:04,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:04,872 INFO L85 PathProgramCache]: Analyzing trace with hash 194506872, now seen corresponding path program 1 times [2023-12-16 18:37:04,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:04,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521817740] [2023-12-16 18:37:04,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:04,873 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:04,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:04,875 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:37:04,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 18:37:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:05,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:37:05,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:05,309 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 18:37:05,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:37:05,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:05,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521817740] [2023-12-16 18:37:05,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521817740] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:37:05,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:37:05,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 18:37:05,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568997457] [2023-12-16 18:37:05,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:37:05,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:37:05,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:05,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:37:05,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:37:05,312 INFO L87 Difference]: Start difference. First operand 111 states and 161 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 18:37:06,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:06,569 INFO L93 Difference]: Finished difference Result 221 states and 321 transitions. [2023-12-16 18:37:06,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:37:06,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 131 [2023-12-16 18:37:06,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:06,570 INFO L225 Difference]: With dead ends: 221 [2023-12-16 18:37:06,571 INFO L226 Difference]: Without dead ends: 114 [2023-12-16 18:37:06,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:37:06,574 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 3 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:06,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 309 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 18:37:06,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-12-16 18:37:06,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 112. [2023-12-16 18:37:06,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 71 states have (on average 1.295774647887324) internal successors, (92), 71 states have internal predecessors, (92), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-16 18:37:06,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 162 transitions. [2023-12-16 18:37:06,584 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 162 transitions. Word has length 131 [2023-12-16 18:37:06,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:06,584 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 162 transitions. [2023-12-16 18:37:06,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 18:37:06,584 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 162 transitions. [2023-12-16 18:37:06,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-16 18:37:06,586 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:06,586 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:06,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 18:37:06,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:06,793 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:06,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:06,794 INFO L85 PathProgramCache]: Analyzing trace with hash -835741424, now seen corresponding path program 1 times [2023-12-16 18:37:06,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:06,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57038932] [2023-12-16 18:37:06,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:06,795 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:06,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:06,810 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:37:06,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 18:37:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:07,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:37:07,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:07,294 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 18:37:07,294 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:37:07,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:07,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57038932] [2023-12-16 18:37:07,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57038932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:37:07,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:37:07,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:37:07,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800858286] [2023-12-16 18:37:07,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:37:07,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:37:07,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:07,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:37:07,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:37:07,296 INFO L87 Difference]: Start difference. First operand 112 states and 162 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 18:37:07,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:07,709 INFO L93 Difference]: Finished difference Result 223 states and 324 transitions. [2023-12-16 18:37:07,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:37:07,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 134 [2023-12-16 18:37:07,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:07,711 INFO L225 Difference]: With dead ends: 223 [2023-12-16 18:37:07,711 INFO L226 Difference]: Without dead ends: 113 [2023-12-16 18:37:07,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:37:07,713 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:07,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 312 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 18:37:07,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-16 18:37:07,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-12-16 18:37:07,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 72 states have (on average 1.2916666666666667) internal successors, (93), 72 states have internal predecessors, (93), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-16 18:37:07,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 163 transitions. [2023-12-16 18:37:07,735 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 163 transitions. Word has length 134 [2023-12-16 18:37:07,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:07,735 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 163 transitions. [2023-12-16 18:37:07,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 18:37:07,736 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 163 transitions. [2023-12-16 18:37:07,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-16 18:37:07,737 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:07,737 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:07,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 18:37:07,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:07,945 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:07,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:07,946 INFO L85 PathProgramCache]: Analyzing trace with hash -918721409, now seen corresponding path program 1 times [2023-12-16 18:37:07,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:07,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602187922] [2023-12-16 18:37:07,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:07,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:07,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:07,948 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:37:07,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 18:37:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:08,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:37:08,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:08,499 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 18:37:08,499 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:37:08,676 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 18:37:08,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:08,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602187922] [2023-12-16 18:37:08,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602187922] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:37:08,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:37:08,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 18:37:08,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114087308] [2023-12-16 18:37:08,677 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:37:08,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:37:08,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:08,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:37:08,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:37:08,679 INFO L87 Difference]: Start difference. First operand 113 states and 163 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 18:37:09,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:09,967 INFO L93 Difference]: Finished difference Result 226 states and 328 transitions. [2023-12-16 18:37:09,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:37:09,967 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 135 [2023-12-16 18:37:09,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:09,968 INFO L225 Difference]: With dead ends: 226 [2023-12-16 18:37:09,968 INFO L226 Difference]: Without dead ends: 115 [2023-12-16 18:37:09,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:37:09,970 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:09,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 467 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 18:37:09,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-16 18:37:09,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-12-16 18:37:09,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 74 states have (on average 1.2837837837837838) internal successors, (95), 74 states have internal predecessors, (95), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-16 18:37:09,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 165 transitions. [2023-12-16 18:37:09,977 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 165 transitions. Word has length 135 [2023-12-16 18:37:09,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:09,977 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 165 transitions. [2023-12-16 18:37:09,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 18:37:09,978 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 165 transitions. [2023-12-16 18:37:09,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 18:37:09,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:09,979 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:10,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 18:37:10,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:10,187 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:10,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:10,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1630487905, now seen corresponding path program 2 times [2023-12-16 18:37:10,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:10,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155284850] [2023-12-16 18:37:10,188 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 18:37:10,188 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:10,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:10,196 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:37:10,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 18:37:10,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 18:37:10,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 18:37:10,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:37:10,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:12,513 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2023-12-16 18:37:12,514 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:37:12,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:12,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155284850] [2023-12-16 18:37:12,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155284850] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:37:12,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:37:12,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:37:12,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678724928] [2023-12-16 18:37:12,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:37:12,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:37:12,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:12,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:37:12,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:37:12,515 INFO L87 Difference]: Start difference. First operand 115 states and 165 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 18:37:13,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:13,049 INFO L93 Difference]: Finished difference Result 219 states and 320 transitions. [2023-12-16 18:37:13,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:37:13,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 137 [2023-12-16 18:37:13,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:13,052 INFO L225 Difference]: With dead ends: 219 [2023-12-16 18:37:13,052 INFO L226 Difference]: Without dead ends: 173 [2023-12-16 18:37:13,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:37:13,054 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 82 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:13,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 488 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 18:37:13,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-16 18:37:13,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2023-12-16 18:37:13,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 113 states have (on average 1.3274336283185841) internal successors, (150), 113 states have internal predecessors, (150), 49 states have call successors, (49), 10 states have call predecessors, (49), 10 states have return successors, (53), 49 states have call predecessors, (53), 49 states have call successors, (53) [2023-12-16 18:37:13,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 252 transitions. [2023-12-16 18:37:13,067 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 252 transitions. Word has length 137 [2023-12-16 18:37:13,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:13,067 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 252 transitions. [2023-12-16 18:37:13,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 18:37:13,068 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 252 transitions. [2023-12-16 18:37:13,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-12-16 18:37:13,070 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:13,070 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 5, 5, 5, 5, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:13,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-16 18:37:13,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:13,278 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:13,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:13,278 INFO L85 PathProgramCache]: Analyzing trace with hash 423740329, now seen corresponding path program 1 times [2023-12-16 18:37:13,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:13,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067232979] [2023-12-16 18:37:13,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:13,279 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:13,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:13,280 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:37:13,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 18:37:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:13,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:37:13,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:14,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1251 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2023-12-16 18:37:14,019 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:37:14,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1251 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2023-12-16 18:37:14,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:14,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067232979] [2023-12-16 18:37:14,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067232979] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:37:14,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:37:14,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 6 [2023-12-16 18:37:14,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423845875] [2023-12-16 18:37:14,343 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:37:14,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:37:14,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:14,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:37:14,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:37:14,345 INFO L87 Difference]: Start difference. First operand 173 states and 252 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2023-12-16 18:37:17,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:17,039 INFO L93 Difference]: Finished difference Result 350 states and 510 transitions. [2023-12-16 18:37:17,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:37:17,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 215 [2023-12-16 18:37:17,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:17,041 INFO L225 Difference]: With dead ends: 350 [2023-12-16 18:37:17,041 INFO L226 Difference]: Without dead ends: 185 [2023-12-16 18:37:17,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:37:17,042 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 9 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:17,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 465 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 18:37:17,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-12-16 18:37:17,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2023-12-16 18:37:17,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 125 states have (on average 1.312) internal successors, (164), 125 states have internal predecessors, (164), 49 states have call successors, (49), 10 states have call predecessors, (49), 10 states have return successors, (53), 49 states have call predecessors, (53), 49 states have call successors, (53) [2023-12-16 18:37:17,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 266 transitions. [2023-12-16 18:37:17,052 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 266 transitions. Word has length 215 [2023-12-16 18:37:17,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:17,052 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 266 transitions. [2023-12-16 18:37:17,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2023-12-16 18:37:17,052 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 266 transitions. [2023-12-16 18:37:17,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 18:37:17,054 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:17,054 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 9, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:17,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 18:37:17,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:17,266 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:17,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:17,266 INFO L85 PathProgramCache]: Analyzing trace with hash 830561207, now seen corresponding path program 2 times [2023-12-16 18:37:17,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:17,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564465388] [2023-12-16 18:37:17,267 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 18:37:17,267 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:17,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:17,268 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:37:17,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 18:37:17,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 18:37:17,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 18:37:17,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 18:37:17,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:17,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1319 trivial. 0 not checked. [2023-12-16 18:37:17,822 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:37:17,822 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:17,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564465388] [2023-12-16 18:37:17,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564465388] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:37:17,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:37:17,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:37:17,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901175813] [2023-12-16 18:37:17,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:37:17,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:37:17,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:17,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:37:17,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:37:17,824 INFO L87 Difference]: Start difference. First operand 185 states and 266 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-16 18:37:18,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:18,266 INFO L93 Difference]: Finished difference Result 340 states and 491 transitions. [2023-12-16 18:37:18,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:37:18,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 227 [2023-12-16 18:37:18,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:18,268 INFO L225 Difference]: With dead ends: 340 [2023-12-16 18:37:18,268 INFO L226 Difference]: Without dead ends: 185 [2023-12-16 18:37:18,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:37:18,269 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:18,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 309 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 18:37:18,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-12-16 18:37:18,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2023-12-16 18:37:18,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 125 states have (on average 1.304) internal successors, (163), 125 states have internal predecessors, (163), 49 states have call successors, (49), 10 states have call predecessors, (49), 10 states have return successors, (53), 49 states have call predecessors, (53), 49 states have call successors, (53) [2023-12-16 18:37:18,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 265 transitions. [2023-12-16 18:37:18,285 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 265 transitions. Word has length 227 [2023-12-16 18:37:18,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:18,285 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 265 transitions. [2023-12-16 18:37:18,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-16 18:37:18,285 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 265 transitions. [2023-12-16 18:37:18,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2023-12-16 18:37:18,289 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:18,290 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 9, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:18,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 18:37:18,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:18,498 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:18,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:18,498 INFO L85 PathProgramCache]: Analyzing trace with hash -727994058, now seen corresponding path program 1 times [2023-12-16 18:37:18,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:18,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911079094] [2023-12-16 18:37:18,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:18,499 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:18,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:18,507 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:37:18,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 18:37:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:19,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 1264 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 18:37:19,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:20,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2023-12-16 18:37:20,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:37:20,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:20,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911079094] [2023-12-16 18:37:20,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911079094] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:37:20,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:37:20,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:37:20,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880825921] [2023-12-16 18:37:20,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:37:20,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:37:20,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:20,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:37:20,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:37:20,580 INFO L87 Difference]: Start difference. First operand 185 states and 265 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-16 18:37:24,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:24,656 INFO L93 Difference]: Finished difference Result 466 states and 682 transitions. [2023-12-16 18:37:24,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 18:37:24,657 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 243 [2023-12-16 18:37:24,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:24,659 INFO L225 Difference]: With dead ends: 466 [2023-12-16 18:37:24,659 INFO L226 Difference]: Without dead ends: 304 [2023-12-16 18:37:24,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-12-16 18:37:24,660 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 144 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:24,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 278 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-16 18:37:24,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2023-12-16 18:37:24,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 292. [2023-12-16 18:37:24,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 191 states have (on average 1.219895287958115) internal successors, (233), 188 states have internal predecessors, (233), 80 states have call successors, (80), 14 states have call predecessors, (80), 20 states have return successors, (101), 89 states have call predecessors, (101), 80 states have call successors, (101) [2023-12-16 18:37:24,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 414 transitions. [2023-12-16 18:37:24,694 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 414 transitions. Word has length 243 [2023-12-16 18:37:24,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:24,695 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 414 transitions. [2023-12-16 18:37:24,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-16 18:37:24,695 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 414 transitions. [2023-12-16 18:37:24,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2023-12-16 18:37:24,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:24,698 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 9, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:24,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-16 18:37:24,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:24,913 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:24,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:24,914 INFO L85 PathProgramCache]: Analyzing trace with hash 174926520, now seen corresponding path program 1 times [2023-12-16 18:37:24,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:24,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065786910] [2023-12-16 18:37:24,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:24,915 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:24,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:24,916 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:37:24,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 18:37:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:25,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 1263 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:37:25,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:26,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 480 proven. 6 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2023-12-16 18:37:26,484 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:37:27,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1438 trivial. 0 not checked. [2023-12-16 18:37:27,973 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:27,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065786910] [2023-12-16 18:37:27,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065786910] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:37:27,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:37:27,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2023-12-16 18:37:27,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638229689] [2023-12-16 18:37:27,974 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:37:27,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:37:27,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:27,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:37:27,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:37:27,975 INFO L87 Difference]: Start difference. First operand 292 states and 414 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 7 states have call successors, (56), 4 states have call predecessors, (56), 6 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) [2023-12-16 18:37:32,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:37:37,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:37,154 INFO L93 Difference]: Finished difference Result 796 states and 1157 transitions. [2023-12-16 18:37:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 18:37:37,155 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 7 states have call successors, (56), 4 states have call predecessors, (56), 6 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) Word has length 243 [2023-12-16 18:37:37,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:37,158 INFO L225 Difference]: With dead ends: 796 [2023-12-16 18:37:37,158 INFO L226 Difference]: Without dead ends: 527 [2023-12-16 18:37:37,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-16 18:37:37,160 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 238 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 153 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:37,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 384 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 279 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2023-12-16 18:37:37,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2023-12-16 18:37:37,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 518. [2023-12-16 18:37:37,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 338 states have (on average 1.2189349112426036) internal successors, (412), 338 states have internal predecessors, (412), 125 states have call successors, (125), 38 states have call predecessors, (125), 54 states have return successors, (188), 141 states have call predecessors, (188), 125 states have call successors, (188) [2023-12-16 18:37:37,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 725 transitions. [2023-12-16 18:37:37,188 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 725 transitions. Word has length 243 [2023-12-16 18:37:37,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:37,188 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 725 transitions. [2023-12-16 18:37:37,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 7 states have call successors, (56), 4 states have call predecessors, (56), 6 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) [2023-12-16 18:37:37,188 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 725 transitions. [2023-12-16 18:37:37,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2023-12-16 18:37:37,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:37,192 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 9, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:37,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 18:37:37,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:37,403 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:37,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:37,404 INFO L85 PathProgramCache]: Analyzing trace with hash 611037626, now seen corresponding path program 1 times [2023-12-16 18:37:37,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:37,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909217608] [2023-12-16 18:37:37,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:37,405 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:37,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:37,406 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:37:37,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 18:37:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:38,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 1327 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 18:37:38,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:39,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 1319 trivial. 0 not checked. [2023-12-16 18:37:39,803 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:37:39,803 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:39,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909217608] [2023-12-16 18:37:39,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1909217608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:37:39,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:37:39,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:37:39,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297030814] [2023-12-16 18:37:39,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:37:39,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:37:39,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:39,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:37:39,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:37:39,805 INFO L87 Difference]: Start difference. First operand 518 states and 725 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 3 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2023-12-16 18:37:47,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:37:47,631 INFO L93 Difference]: Finished difference Result 1095 states and 1538 transitions. [2023-12-16 18:37:47,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 18:37:47,632 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 3 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 243 [2023-12-16 18:37:47,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:37:47,635 INFO L225 Difference]: With dead ends: 1095 [2023-12-16 18:37:47,635 INFO L226 Difference]: Without dead ends: 616 [2023-12-16 18:37:47,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-16 18:37:47,637 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 328 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-16 18:37:47,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 485 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-12-16 18:37:47,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2023-12-16 18:37:47,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 578. [2023-12-16 18:37:47,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 372 states have (on average 1.1881720430107527) internal successors, (442), 373 states have internal predecessors, (442), 149 states have call successors, (149), 42 states have call predecessors, (149), 56 states have return successors, (222), 162 states have call predecessors, (222), 149 states have call successors, (222) [2023-12-16 18:37:47,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 813 transitions. [2023-12-16 18:37:47,667 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 813 transitions. Word has length 243 [2023-12-16 18:37:47,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:37:47,668 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 813 transitions. [2023-12-16 18:37:47,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 3 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2023-12-16 18:37:47,668 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 813 transitions. [2023-12-16 18:37:47,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2023-12-16 18:37:47,671 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:37:47,671 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 9, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:37:47,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 18:37:47,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:47,900 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:37:47,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:37:47,901 INFO L85 PathProgramCache]: Analyzing trace with hash -243501832, now seen corresponding path program 1 times [2023-12-16 18:37:47,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:37:47,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362341787] [2023-12-16 18:37:47,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:37:47,902 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:37:47,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:37:47,961 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:37:47,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 18:37:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:37:50,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 18:37:50,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:37:50,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-12-16 18:37:50,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2023-12-16 18:37:50,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-16 18:37:50,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 1319 trivial. 0 not checked. [2023-12-16 18:37:50,818 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:37:50,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:37:50,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362341787] [2023-12-16 18:37:50,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362341787] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:37:50,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:37:50,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:37:50,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139534846] [2023-12-16 18:37:50,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:37:50,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:37:50,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:37:50,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:37:50,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:37:50,820 INFO L87 Difference]: Start difference. First operand 578 states and 813 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-16 18:37:55,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:37:59,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:38:03,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:38:07,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:38:07,673 INFO L93 Difference]: Finished difference Result 867 states and 1188 transitions. [2023-12-16 18:38:07,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 18:38:07,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 243 [2023-12-16 18:38:07,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:38:07,676 INFO L225 Difference]: With dead ends: 867 [2023-12-16 18:38:07,676 INFO L226 Difference]: Without dead ends: 578 [2023-12-16 18:38:07,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 18:38:07,678 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 81 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 49 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2023-12-16 18:38:07,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 430 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 217 Invalid, 3 Unknown, 0 Unchecked, 16.7s Time] [2023-12-16 18:38:07,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2023-12-16 18:38:07,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 573. [2023-12-16 18:38:07,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 368 states have (on average 1.1875) internal successors, (437), 369 states have internal predecessors, (437), 148 states have call successors, (148), 42 states have call predecessors, (148), 56 states have return successors, (218), 161 states have call predecessors, (218), 148 states have call successors, (218) [2023-12-16 18:38:07,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 803 transitions. [2023-12-16 18:38:07,707 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 803 transitions. Word has length 243 [2023-12-16 18:38:07,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:38:07,708 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 803 transitions. [2023-12-16 18:38:07,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-16 18:38:07,708 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 803 transitions. [2023-12-16 18:38:07,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2023-12-16 18:38:07,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:38:07,711 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 9, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:38:07,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 18:38:07,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:07,928 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:38:07,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:38:07,929 INFO L85 PathProgramCache]: Analyzing trace with hash 990353240, now seen corresponding path program 1 times [2023-12-16 18:38:07,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:38:07,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [384181730] [2023-12-16 18:38:07,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:38:07,930 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:07,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:38:07,931 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:38:07,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 18:38:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:38:09,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 18:38:09,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 18:38:09,277 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:38:09,277 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:38:09,534 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 18:38:09,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 18:38:09,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:09,735 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 244 with TraceHistMax 26,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. [2023-12-16 18:38:09,741 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:38:09,743 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 18:38:09,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:38:09 BoogieIcfgContainer [2023-12-16 18:38:09,744 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 18:38:09,745 INFO L158 Benchmark]: Toolchain (without parser) took 72950.68ms. Allocated memory was 272.6MB in the beginning and 443.5MB in the end (delta: 170.9MB). Free memory was 223.0MB in the beginning and 360.8MB in the end (delta: -137.8MB). Peak memory consumption was 34.1MB. Max. memory is 8.0GB. [2023-12-16 18:38:09,745 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 188.7MB. Free memory was 137.3MB in the beginning and 137.2MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 18:38:09,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 432.10ms. Allocated memory is still 272.6MB. Free memory was 223.0MB in the beginning and 193.1MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-12-16 18:38:09,745 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.61ms. Allocated memory is still 272.6MB. Free memory was 193.1MB in the beginning and 189.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 18:38:09,745 INFO L158 Benchmark]: Boogie Preprocessor took 107.50ms. Allocated memory is still 272.6MB. Free memory was 189.0MB in the beginning and 180.0MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-16 18:38:09,746 INFO L158 Benchmark]: RCFGBuilder took 6187.30ms. Allocated memory is still 272.6MB. Free memory was 179.5MB in the beginning and 172.4MB in the end (delta: 7.1MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. [2023-12-16 18:38:09,746 INFO L158 Benchmark]: TraceAbstraction took 66110.51ms. Allocated memory was 272.6MB in the beginning and 443.5MB in the end (delta: 170.9MB). Free memory was 171.4MB in the beginning and 360.8MB in the end (delta: -189.5MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 18:38:09,747 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 188.7MB. Free memory was 137.3MB in the beginning and 137.2MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 432.10ms. Allocated memory is still 272.6MB. Free memory was 223.0MB in the beginning and 193.1MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 93.61ms. Allocated memory is still 272.6MB. Free memory was 193.1MB in the beginning and 189.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 107.50ms. Allocated memory is still 272.6MB. Free memory was 189.0MB in the beginning and 180.0MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 6187.30ms. Allocated memory is still 272.6MB. Free memory was 179.5MB in the beginning and 172.4MB in the end (delta: 7.1MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. * TraceAbstraction took 66110.51ms. Allocated memory was 272.6MB in the beginning and 443.5MB in the end (delta: 170.9MB). Free memory was 171.4MB in the beginning and 360.8MB in the end (delta: -189.5MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 542]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 542). Cancelled while NwaCegarLoop was analyzing trace of length 244 with TraceHistMax 26,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 113 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 66.0s, OverallIterations: 12, TraceHistogramMax: 26, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 44.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 1013 SdHoareTripleChecker+Valid, 43.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 885 mSDsluCounter, 4085 SdHoareTripleChecker+Invalid, 42.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2369 mSDsCounter, 471 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1577 IncrementalHoareTripleChecker+Invalid, 2052 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 471 mSolverCounterUnsat, 1716 mSDtfsCounter, 1577 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2672 GetRequests, 2632 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=578occurred in iteration=10, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 66 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 2082 NumberOfCodeBlocks, 1755 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2661 ConstructedInterpolants, 0 QuantifiedInterpolants, 3909 SizeOfPredicates, 11 NumberOfNonLiveVariables, 9159 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 15599/15613 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown