/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_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -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 [2023-12-20 03:58:19,391 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 03:58:19,461 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 03:58:19,464 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 03:58:19,464 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 03:58:19,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 03:58:19,492 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 03:58:19,492 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 03:58:19,493 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 03:58:19,497 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 03:58:19,497 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 03:58:19,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 03:58:19,498 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 03:58:19,499 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 03:58:19,499 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 03:58:19,499 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 03:58:19,500 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 03:58:19,500 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 03:58:19,500 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 03:58:19,500 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 03:58:19,500 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 03:58:19,501 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 03:58:19,501 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 03:58:19,501 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 03:58:19,501 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 03:58:19,501 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 03:58:19,501 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 03:58:19,501 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 03:58:19,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 03:58:19,502 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 03:58:19,503 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 03:58:19,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 03:58:19,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:58:19,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 03:58:19,503 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 03:58:19,503 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 03:58:19,504 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 03:58:19,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 03:58:19,504 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 03:58:19,505 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 03:58:19,505 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 03:58:19,505 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 03:58:19,505 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 03:58:19,505 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 03:58:19,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 03:58:19,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 03:58:19,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 03:58:19,808 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 03:58:19,809 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 03:58:19,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_dekker.i [2023-12-20 03:58:21,012 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 03:58:21,275 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 03:58:21,276 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_dekker.i [2023-12-20 03:58:21,294 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d632f2f69/fb996fe9a52443c2ac6c9355e8b2fc0f/FLAG5ab4cb4ad [2023-12-20 03:58:21,304 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d632f2f69/fb996fe9a52443c2ac6c9355e8b2fc0f [2023-12-20 03:58:21,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 03:58:21,307 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 03:58:21,308 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 03:58:21,308 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 03:58:21,317 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 03:58:21,318 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:58:21" (1/1) ... [2023-12-20 03:58:21,319 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d1364b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:21, skipping insertion in model container [2023-12-20 03:58:21,319 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:58:21" (1/1) ... [2023-12-20 03:58:21,381 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 03:58:21,585 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] [2023-12-20 03:58:21,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:58:21,721 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 03:58:21,749 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] [2023-12-20 03:58:21,796 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:58:21,830 INFO L206 MainTranslator]: Completed translation [2023-12-20 03:58:21,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:21 WrapperNode [2023-12-20 03:58:21,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 03:58:21,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 03:58:21,868 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 03:58:21,868 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 03:58:21,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:21" (1/1) ... [2023-12-20 03:58:21,894 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:21" (1/1) ... [2023-12-20 03:58:21,928 INFO L138 Inliner]: procedures = 145, calls = 300, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 455 [2023-12-20 03:58:21,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 03:58:21,929 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 03:58:21,929 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 03:58:21,929 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 03:58:21,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:21" (1/1) ... [2023-12-20 03:58:21,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:21" (1/1) ... [2023-12-20 03:58:21,944 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:21" (1/1) ... [2023-12-20 03:58:21,965 INFO L175 MemorySlicer]: Split 150 memory accesses to 17 slices as follows [2, 5, 13, 8, 8, 29, 21, 7, 7, 9, 7, 13, 6, 5, 5, 0, 5]. 19 percent of accesses are in the largest equivalence class. The 40 initializations are split as follows [2, 0, 0, 3, 3, 9, 9, 3, 3, 3, 3, 0, 2, 0, 0, 0, 0]. The 37 writes are split as follows [0, 1, 1, 2, 2, 11, 6, 2, 2, 2, 2, 1, 2, 1, 1, 0, 1]. [2023-12-20 03:58:21,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:21" (1/1) ... [2023-12-20 03:58:21,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:21" (1/1) ... [2023-12-20 03:58:21,983 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:21" (1/1) ... [2023-12-20 03:58:21,986 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:21" (1/1) ... [2023-12-20 03:58:21,991 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:21" (1/1) ... [2023-12-20 03:58:21,994 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:21" (1/1) ... [2023-12-20 03:58:22,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 03:58:22,002 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 03:58:22,002 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 03:58:22,002 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 03:58:22,003 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:21" (1/1) ... [2023-12-20 03:58:22,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:58:22,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:58:22,055 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) [2023-12-20 03:58:22,089 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 [2023-12-20 03:58:22,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-20 03:58:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-20 03:58:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-20 03:58:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-20 03:58:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-20 03:58:22,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-20 03:58:22,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-20 03:58:22,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-20 03:58:22,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-20 03:58:22,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-20 03:58:22,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-20 03:58:22,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-20 03:58:22,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-20 03:58:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-20 03:58:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-12-20 03:58:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-12-20 03:58:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-12-20 03:58:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-20 03:58:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-20 03:58:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-20 03:58:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-20 03:58:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-20 03:58:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-20 03:58:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-20 03:58:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-20 03:58:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-20 03:58:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-20 03:58:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-20 03:58:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-20 03:58:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-20 03:58:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-20 03:58:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-12-20 03:58:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-12-20 03:58:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-12-20 03:58:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 03:58:22,112 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 03:58:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 03:58:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-20 03:58:22,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-20 03:58:22,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-20 03:58:22,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-20 03:58:22,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-12-20 03:58:22,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-12-20 03:58:22,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-12-20 03:58:22,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-12-20 03:58:22,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-12-20 03:58:22,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-12-20 03:58:22,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-12-20 03:58:22,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-12-20 03:58:22,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-12-20 03:58:22,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-12-20 03:58:22,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-12-20 03:58:22,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-12-20 03:58:22,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-12-20 03:58:22,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-12-20 03:58:22,114 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-12-20 03:58:22,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-12-20 03:58:22,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-20 03:58:22,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-20 03:58:22,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-20 03:58:22,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-12-20 03:58:22,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-12-20 03:58:22,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-12-20 03:58:22,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-12-20 03:58:22,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-12-20 03:58:22,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-12-20 03:58:22,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-12-20 03:58:22,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-12-20 03:58:22,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-12-20 03:58:22,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-12-20 03:58:22,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-12-20 03:58:22,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-12-20 03:58:22,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-12-20 03:58:22,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-12-20 03:58:22,116 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-12-20 03:58:22,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-12-20 03:58:22,117 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-20 03:58:22,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-20 03:58:22,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-20 03:58:22,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-12-20 03:58:22,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-12-20 03:58:22,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-12-20 03:58:22,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-12-20 03:58:22,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-12-20 03:58:22,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-12-20 03:58:22,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-12-20 03:58:22,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-12-20 03:58:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-12-20 03:58:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-12-20 03:58:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-12-20 03:58:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-12-20 03:58:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-12-20 03:58:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-12-20 03:58:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-12-20 03:58:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-12-20 03:58:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-12-20 03:58:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-12-20 03:58:22,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-12-20 03:58:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 03:58:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-20 03:58:22,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-20 03:58:22,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-20 03:58:22,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-20 03:58:22,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-20 03:58:22,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-20 03:58:22,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-20 03:58:22,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-20 03:58:22,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-20 03:58:22,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-20 03:58:22,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-20 03:58:22,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-20 03:58:22,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-20 03:58:22,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-20 03:58:22,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-20 03:58:22,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-20 03:58:22,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 03:58:22,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 03:58:22,360 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 03:58:22,362 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 03:58:26,829 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 03:58:26,881 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 03:58:26,881 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-20 03:58:26,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:58:26 BoogieIcfgContainer [2023-12-20 03:58:26,882 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 03:58:26,884 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 03:58:26,884 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 03:58:26,887 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 03:58:26,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 03:58:21" (1/3) ... [2023-12-20 03:58:26,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e20f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:58:26, skipping insertion in model container [2023-12-20 03:58:26,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:21" (2/3) ... [2023-12-20 03:58:26,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e20f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:58:26, skipping insertion in model container [2023-12-20 03:58:26,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:58:26" (3/3) ... [2023-12-20 03:58:26,889 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_dekker.i [2023-12-20 03:58:26,902 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 03:58:26,903 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 03:58:26,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 03:58:26,958 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;@510a100b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 03:58:26,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 03:58:26,964 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) [2023-12-20 03:58:26,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-20 03:58:26,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:58:26,988 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] [2023-12-20 03:58:26,989 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:58:26,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:58:26,994 INFO L85 PathProgramCache]: Analyzing trace with hash 405785806, now seen corresponding path program 1 times [2023-12-20 03:58:27,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:58:27,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292619270] [2023-12-20 03:58:27,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:27,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:58:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-20 03:58:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 03:58:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 03:58:27,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 03:58:27,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 03:58:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-20 03:58:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 03:58:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 03:58:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 03:58:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 03:58:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 03:58:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 03:58:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-20 03:58:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-20 03:58:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-20 03:58:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 03:58:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 03:58:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 03:58:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 03:58:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 03:58:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,572 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-20 03:58:27,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:58:27,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292619270] [2023-12-20 03:58:27,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292619270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:58:27,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:58:27,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 03:58:27,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292441251] [2023-12-20 03:58:27,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:58:27,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 03:58:27,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:58:27,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 03:58:27,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 03:58:27,607 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 17.0) 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) [2023-12-20 03:58:27,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:58:27,654 INFO L93 Difference]: Finished difference Result 225 states and 366 transitions. [2023-12-20 03:58:27,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 03:58:27,656 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) 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 [2023-12-20 03:58:27,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:58:27,662 INFO L225 Difference]: With dead ends: 225 [2023-12-20 03:58:27,662 INFO L226 Difference]: Without dead ends: 111 [2023-12-20 03:58:27,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 03:58:27,667 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:58:27,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:58:27,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-12-20 03:58:27,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-12-20 03:58:27,698 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) [2023-12-20 03:58:27,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 161 transitions. [2023-12-20 03:58:27,700 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 161 transitions. Word has length 131 [2023-12-20 03:58:27,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:58:27,701 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 161 transitions. [2023-12-20 03:58:27,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) 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) [2023-12-20 03:58:27,701 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 161 transitions. [2023-12-20 03:58:27,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-20 03:58:27,703 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:58:27,704 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] [2023-12-20 03:58:27,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 03:58:27,704 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:58:27,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:58:27,704 INFO L85 PathProgramCache]: Analyzing trace with hash 194506872, now seen corresponding path program 1 times [2023-12-20 03:58:27,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:58:27,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989079109] [2023-12-20 03:58:27,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:27,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:58:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-20 03:58:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 03:58:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 03:58:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 03:58:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 03:58:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-20 03:58:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 03:58:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 03:58:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 03:58:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 03:58:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 03:58:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 03:58:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-20 03:58:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-20 03:58:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-20 03:58:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 03:58:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 03:58:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 03:58:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 03:58:27,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 03:58:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:27,966 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-20 03:58:27,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:58:27,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989079109] [2023-12-20 03:58:27,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989079109] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:58:27,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:58:27,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:58:27,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854378381] [2023-12-20 03:58:27,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:58:27,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:58:27,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:58:27,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:58:27,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:58:27,981 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), 3 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) [2023-12-20 03:58:28,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:58:28,055 INFO L93 Difference]: Finished difference Result 221 states and 321 transitions. [2023-12-20 03:58:28,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:58:28,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 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 [2023-12-20 03:58:28,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:58:28,061 INFO L225 Difference]: With dead ends: 221 [2023-12-20 03:58:28,061 INFO L226 Difference]: Without dead ends: 114 [2023-12-20 03:58:28,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:58:28,063 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 3 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:58:28,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 309 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:58:28,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-12-20 03:58:28,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 112. [2023-12-20 03:58:28,073 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) [2023-12-20 03:58:28,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 162 transitions. [2023-12-20 03:58:28,075 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 162 transitions. Word has length 131 [2023-12-20 03:58:28,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:58:28,075 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 162 transitions. [2023-12-20 03:58:28,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 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) [2023-12-20 03:58:28,075 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 162 transitions. [2023-12-20 03:58:28,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-20 03:58:28,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:58:28,080 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] [2023-12-20 03:58:28,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 03:58:28,080 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:58:28,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:58:28,081 INFO L85 PathProgramCache]: Analyzing trace with hash -835741424, now seen corresponding path program 1 times [2023-12-20 03:58:28,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:58:28,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540954281] [2023-12-20 03:58:28,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:28,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:58:28,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 03:58:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 03:58:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 03:58:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 03:58:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-20 03:58:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 03:58:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 03:58:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-20 03:58:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-20 03:58:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-20 03:58:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-20 03:58:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-20 03:58:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 03:58:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 03:58:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-20 03:58:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-20 03:58:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 03:58:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-20 03:58:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-20 03:58:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-20 03:58:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,337 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-20 03:58:28,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:58:28,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540954281] [2023-12-20 03:58:28,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540954281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:58:28,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:58:28,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:58:28,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99017010] [2023-12-20 03:58:28,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:58:28,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:58:28,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:58:28,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:58:28,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:58:28,342 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) [2023-12-20 03:58:28,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:58:28,396 INFO L93 Difference]: Finished difference Result 223 states and 324 transitions. [2023-12-20 03:58:28,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:58:28,399 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 [2023-12-20 03:58:28,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:58:28,402 INFO L225 Difference]: With dead ends: 223 [2023-12-20 03:58:28,402 INFO L226 Difference]: Without dead ends: 113 [2023-12-20 03:58:28,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:58:28,406 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:58:28,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 312 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:58:28,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-20 03:58:28,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-12-20 03:58:28,414 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) [2023-12-20 03:58:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 163 transitions. [2023-12-20 03:58:28,415 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 163 transitions. Word has length 134 [2023-12-20 03:58:28,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:58:28,415 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 163 transitions. [2023-12-20 03:58:28,415 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) [2023-12-20 03:58:28,415 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 163 transitions. [2023-12-20 03:58:28,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-20 03:58:28,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:58:28,419 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] [2023-12-20 03:58:28,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 03:58:28,419 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:58:28,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:58:28,420 INFO L85 PathProgramCache]: Analyzing trace with hash -918721409, now seen corresponding path program 1 times [2023-12-20 03:58:28,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:58:28,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458240052] [2023-12-20 03:58:28,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:28,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:58:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 03:58:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 03:58:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 03:58:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 03:58:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 03:58:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-20 03:58:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-20 03:58:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-20 03:58:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-20 03:58:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-20 03:58:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 03:58:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 03:58:28,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 03:58:28,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-20 03:58:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-20 03:58:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-20 03:58:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-20 03:58:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-20 03:58:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-20 03:58:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 03:58:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:28,731 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-20 03:58:28,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:58:28,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458240052] [2023-12-20 03:58:28,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458240052] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:58:28,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469881497] [2023-12-20 03:58:28,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:28,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:58:28,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:58:28,735 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:58:28,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 03:58:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 03:58:29,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:58:29,202 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-20 03:58:29,202 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:58:29,260 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-20 03:58:29,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469881497] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:58:29,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:58:29,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-12-20 03:58:29,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482333968] [2023-12-20 03:58:29,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:58:29,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 03:58:29,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:58:29,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 03:58:29,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:58:29,262 INFO L87 Difference]: Start difference. First operand 113 states and 163 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2023-12-20 03:58:29,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:58:29,306 INFO L93 Difference]: Finished difference Result 226 states and 328 transitions. [2023-12-20 03:58:29,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:58:29,307 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 [2023-12-20 03:58:29,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:58:29,308 INFO L225 Difference]: With dead ends: 226 [2023-12-20 03:58:29,308 INFO L226 Difference]: Without dead ends: 115 [2023-12-20 03:58:29,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 307 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:58:29,309 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:58:29,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 622 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:58:29,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-20 03:58:29,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-12-20 03:58:29,327 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) [2023-12-20 03:58:29,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 165 transitions. [2023-12-20 03:58:29,328 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 165 transitions. Word has length 135 [2023-12-20 03:58:29,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:58:29,328 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 165 transitions. [2023-12-20 03:58:29,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2023-12-20 03:58:29,329 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 165 transitions. [2023-12-20 03:58:29,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-20 03:58:29,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:58:29,330 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] [2023-12-20 03:58:29,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 03:58:29,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:58:29,551 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:58:29,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:58:29,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1630487905, now seen corresponding path program 2 times [2023-12-20 03:58:29,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:58:29,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337091845] [2023-12-20 03:58:29,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:29,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:58:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 03:58:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 03:58:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 03:58:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 03:58:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-20 03:58:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 03:58:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 03:58:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 03:58:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 03:58:29,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 03:58:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 03:58:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-20 03:58:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-20 03:58:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-20 03:58:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 03:58:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 03:58:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 03:58:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 03:58:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 03:58:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 03:58:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:29,796 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2023-12-20 03:58:29,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:58:29,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337091845] [2023-12-20 03:58:29,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337091845] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:58:29,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476507756] [2023-12-20 03:58:29,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-20 03:58:29,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:58:29,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:58:29,822 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:58:29,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 03:58:30,161 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-20 03:58:30,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-20 03:58:30,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 03:58:30,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:58:30,290 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 25 treesize of output 13 [2023-12-20 03:58:30,504 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2023-12-20 03:58:30,504 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 03:58:30,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476507756] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:58:30,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 03:58:30,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2023-12-20 03:58:30,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542998632] [2023-12-20 03:58:30,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:58:30,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 03:58:30,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:58:30,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 03:58:30,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:58:30,506 INFO L87 Difference]: Start difference. First operand 115 states and 165 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 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) [2023-12-20 03:58:35,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:58:36,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:58:36,018 INFO L93 Difference]: Finished difference Result 416 states and 614 transitions. [2023-12-20 03:58:36,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 03:58:36,018 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 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 [2023-12-20 03:58:36,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:58:36,021 INFO L225 Difference]: With dead ends: 416 [2023-12-20 03:58:36,021 INFO L226 Difference]: Without dead ends: 228 [2023-12-20 03:58:36,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:58:36,023 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 253 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:58:36,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 744 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 204 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2023-12-20 03:58:36,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2023-12-20 03:58:36,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2023-12-20 03:58:36,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 150 states have (on average 1.34) internal successors, (201), 150 states have internal predecessors, (201), 62 states have call successors, (62), 15 states have call predecessors, (62), 15 states have return successors, (71), 62 states have call predecessors, (71), 62 states have call successors, (71) [2023-12-20 03:58:36,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 334 transitions. [2023-12-20 03:58:36,054 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 334 transitions. Word has length 137 [2023-12-20 03:58:36,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:58:36,054 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 334 transitions. [2023-12-20 03:58:36,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 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) [2023-12-20 03:58:36,054 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 334 transitions. [2023-12-20 03:58:36,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-12-20 03:58:36,056 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:58:36,056 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] [2023-12-20 03:58:36,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-20 03:58:36,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:58:36,265 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:58:36,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:58:36,266 INFO L85 PathProgramCache]: Analyzing trace with hash 423740329, now seen corresponding path program 1 times [2023-12-20 03:58:36,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:58:36,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999883823] [2023-12-20 03:58:36,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:36,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:58:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 03:58:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:58:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:58:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 03:58:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:58:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 03:58:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 03:58:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:58:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 03:58:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-20 03:58:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:58:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 03:58:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 03:58:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:58:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-20 03:58:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 03:58:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 03:58:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 03:58:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 03:58:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 03:58:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 03:58:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 03:58:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 03:58:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 03:58:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 03:58:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-20 03:58:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-20 03:58:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-20 03:58:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-20 03:58:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 03:58:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 03:58:36,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 03:58:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 03:58:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 03:58:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:36,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1251 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2023-12-20 03:58:36,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:58:36,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999883823] [2023-12-20 03:58:36,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999883823] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:58:36,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334172958] [2023-12-20 03:58:36,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:36,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:58:36,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:58:36,856 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:58:36,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 03:58:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:37,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 1473 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 03:58:37,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:58:37,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1251 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2023-12-20 03:58:37,348 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:58:37,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1251 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2023-12-20 03:58:37,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334172958] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:58:37,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:58:37,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 4] total 10 [2023-12-20 03:58:37,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213804721] [2023-12-20 03:58:37,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:58:37,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 03:58:37,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:58:37,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 03:58:37,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-12-20 03:58:37,480 INFO L87 Difference]: Start difference. First operand 228 states and 334 transitions. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 6 states have internal predecessors, (102), 2 states have call successors, (69), 6 states have call predecessors, (69), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2023-12-20 03:58:41,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:58:45,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:58:49,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:58:50,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:58:50,171 INFO L93 Difference]: Finished difference Result 472 states and 690 transitions. [2023-12-20 03:58:50,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 03:58:50,171 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 6 states have internal predecessors, (102), 2 states have call successors, (69), 6 states have call predecessors, (69), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 215 [2023-12-20 03:58:50,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:58:50,173 INFO L225 Difference]: With dead ends: 472 [2023-12-20 03:58:50,173 INFO L226 Difference]: Without dead ends: 252 [2023-12-20 03:58:50,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 491 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:58:50,175 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 41 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 37 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:58:50,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 571 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 506 Invalid, 3 Unknown, 0 Unchecked, 12.6s Time] [2023-12-20 03:58:50,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-12-20 03:58:50,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 246. [2023-12-20 03:58:50,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 165 states have (on average 1.3212121212121213) internal successors, (218), 168 states have internal predecessors, (218), 62 states have call successors, (62), 15 states have call predecessors, (62), 18 states have return successors, (76), 62 states have call predecessors, (76), 62 states have call successors, (76) [2023-12-20 03:58:50,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 356 transitions. [2023-12-20 03:58:50,197 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 356 transitions. Word has length 215 [2023-12-20 03:58:50,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:58:50,197 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 356 transitions. [2023-12-20 03:58:50,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 6 states have internal predecessors, (102), 2 states have call successors, (69), 6 states have call predecessors, (69), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2023-12-20 03:58:50,197 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 356 transitions. [2023-12-20 03:58:50,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-20 03:58:50,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:58:50,200 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] [2023-12-20 03:58:50,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 03:58:50,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:58:50,409 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:58:50,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:58:50,409 INFO L85 PathProgramCache]: Analyzing trace with hash 830561207, now seen corresponding path program 2 times [2023-12-20 03:58:50,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:58:50,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286254499] [2023-12-20 03:58:50,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:50,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:58:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-20 03:58:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:58:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:58:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 03:58:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:58:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 03:58:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 03:58:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:58:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 03:58:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-20 03:58:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:58:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 03:58:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 03:58:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:58:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 03:58:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 03:58:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 03:58:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 03:58:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 03:58:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 03:58:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 03:58:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 03:58:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 03:58:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-20 03:58:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-20 03:58:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-20 03:58:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-20 03:58:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 03:58:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 03:58:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 03:58:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 03:58:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 03:58:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-20 03:58:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-20 03:58:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:51,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1319 trivial. 0 not checked. [2023-12-20 03:58:51,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:58:51,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286254499] [2023-12-20 03:58:51,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286254499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:58:51,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:58:51,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:58:51,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035910596] [2023-12-20 03:58:51,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:58:51,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:58:51,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:58:51,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:58:51,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:58:51,293 INFO L87 Difference]: Start difference. First operand 246 states and 356 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-20 03:58:55,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:58:59,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:03,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:07,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:11,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:15,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:16,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:16,271 INFO L93 Difference]: Finished difference Result 542 states and 784 transitions. [2023-12-20 03:59:16,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 03:59:16,272 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 227 [2023-12-20 03:59:16,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:16,274 INFO L225 Difference]: With dead ends: 542 [2023-12-20 03:59:16,274 INFO L226 Difference]: Without dead ends: 343 [2023-12-20 03:59:16,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-12-20 03:59:16,275 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 189 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 97 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:16,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 646 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 609 Invalid, 6 Unknown, 0 Unchecked, 24.8s Time] [2023-12-20 03:59:16,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-12-20 03:59:16,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 335. [2023-12-20 03:59:16,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 217 states have (on average 1.2811059907834101) internal successors, (278), 222 states have internal predecessors, (278), 93 states have call successors, (93), 20 states have call predecessors, (93), 24 states have return successors, (112), 92 states have call predecessors, (112), 93 states have call successors, (112) [2023-12-20 03:59:16,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 483 transitions. [2023-12-20 03:59:16,296 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 483 transitions. Word has length 227 [2023-12-20 03:59:16,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:16,296 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 483 transitions. [2023-12-20 03:59:16,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-20 03:59:16,296 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 483 transitions. [2023-12-20 03:59:16,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-20 03:59:16,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:16,299 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] [2023-12-20 03:59:16,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 03:59:16,299 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:16,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:16,299 INFO L85 PathProgramCache]: Analyzing trace with hash -920679817, now seen corresponding path program 1 times [2023-12-20 03:59:16,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:16,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582095378] [2023-12-20 03:59:16,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:16,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 03:59:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 03:59:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 03:59:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 03:59:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 03:59:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-20 03:59:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 03:59:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 03:59:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 03:59:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 03:59:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 03:59:17,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 03:59:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 03:59:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 03:59:17,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 03:59:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 03:59:17,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 03:59:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-20 03:59:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-20 03:59:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-20 03:59:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-20 03:59:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 03:59:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 03:59:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 03:59:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 03:59:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 03:59:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-20 03:59:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-20 03:59:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1316 trivial. 0 not checked. [2023-12-20 03:59:17,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:17,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582095378] [2023-12-20 03:59:17,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582095378] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:59:17,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692160956] [2023-12-20 03:59:17,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:17,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:17,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:59:17,273 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:59:17,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 03:59:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 1759 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-20 03:59:17,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:59:18,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 1107 trivial. 0 not checked. [2023-12-20 03:59:18,039 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 03:59:18,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692160956] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:59:18,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 03:59:18,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 17 [2023-12-20 03:59:18,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794675223] [2023-12-20 03:59:18,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:59:18,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 03:59:18,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:18,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 03:59:18,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:59:18,041 INFO L87 Difference]: Start difference. First operand 335 states and 483 transitions. Second operand has 7 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2023-12-20 03:59:18,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:18,618 INFO L93 Difference]: Finished difference Result 897 states and 1293 transitions. [2023-12-20 03:59:18,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 03:59:18,619 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 227 [2023-12-20 03:59:18,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:18,622 INFO L225 Difference]: With dead ends: 897 [2023-12-20 03:59:18,622 INFO L226 Difference]: Without dead ends: 578 [2023-12-20 03:59:18,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2023-12-20 03:59:18,624 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 293 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:18,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 425 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:59:18,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2023-12-20 03:59:18,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 564. [2023-12-20 03:59:18,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 360 states have (on average 1.2055555555555555) internal successors, (434), 362 states have internal predecessors, (434), 157 states have call successors, (157), 36 states have call predecessors, (157), 46 states have return successors, (203), 165 states have call predecessors, (203), 157 states have call successors, (203) [2023-12-20 03:59:18,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 794 transitions. [2023-12-20 03:59:18,692 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 794 transitions. Word has length 227 [2023-12-20 03:59:18,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:18,692 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 794 transitions. [2023-12-20 03:59:18,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2023-12-20 03:59:18,692 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 794 transitions. [2023-12-20 03:59:18,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-20 03:59:18,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:18,696 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] [2023-12-20 03:59:18,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-20 03:59:18,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:18,906 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:18,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:18,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1588884217, now seen corresponding path program 1 times [2023-12-20 03:59:18,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:18,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99324639] [2023-12-20 03:59:18,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:18,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 03:59:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:19,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 03:59:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 03:59:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 03:59:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 03:59:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-20 03:59:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 03:59:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 03:59:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 03:59:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 03:59:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 03:59:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 03:59:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 03:59:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 03:59:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 03:59:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 03:59:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 03:59:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-20 03:59:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-20 03:59:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-20 03:59:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-20 03:59:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 03:59:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 03:59:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 03:59:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 03:59:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 03:59:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-20 03:59:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-20 03:59:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1316 trivial. 0 not checked. [2023-12-20 03:59:19,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:19,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99324639] [2023-12-20 03:59:19,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99324639] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:59:19,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065935594] [2023-12-20 03:59:19,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:19,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:19,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:59:19,707 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:59:19,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 03:59:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:20,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 1756 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-20 03:59:20,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:59:20,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-20 03:59:20,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 404 proven. 16 refuted. 0 times theorem prover too weak. 899 trivial. 0 not checked. [2023-12-20 03:59:20,739 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:59:21,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 1299 trivial. 0 not checked. [2023-12-20 03:59:21,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065935594] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:59:21,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:59:21,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 9] total 30 [2023-12-20 03:59:21,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452679051] [2023-12-20 03:59:21,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:59:21,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-20 03:59:21,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:21,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-20 03:59:21,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=695, Unknown=0, NotChecked=0, Total=870 [2023-12-20 03:59:21,301 INFO L87 Difference]: Start difference. First operand 564 states and 794 transitions. Second operand has 30 states, 27 states have (on average 4.888888888888889) internal successors, (132), 24 states have internal predecessors, (132), 18 states have call successors, (71), 12 states have call predecessors, (71), 11 states have return successors, (71), 14 states have call predecessors, (71), 18 states have call successors, (71) [2023-12-20 03:59:25,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:29,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:33,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:37,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:41,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:45,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:49,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:53,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:58,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:58,417 INFO L93 Difference]: Finished difference Result 1240 states and 1736 transitions. [2023-12-20 03:59:58,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-20 03:59:58,418 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 27 states have (on average 4.888888888888889) internal successors, (132), 24 states have internal predecessors, (132), 18 states have call successors, (71), 12 states have call predecessors, (71), 11 states have return successors, (71), 14 states have call predecessors, (71), 18 states have call successors, (71) Word has length 227 [2023-12-20 03:59:58,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:58,421 INFO L225 Difference]: With dead ends: 1240 [2023-12-20 03:59:58,421 INFO L226 Difference]: Without dead ends: 715 [2023-12-20 03:59:58,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 598 GetRequests, 525 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1515 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1247, Invalid=4303, Unknown=0, NotChecked=0, Total=5550 [2023-12-20 03:59:58,424 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 898 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 755 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 3156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 755 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:58,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 978 Invalid, 3156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [755 Valid, 2393 Invalid, 8 Unknown, 0 Unchecked, 34.4s Time] [2023-12-20 03:59:58,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2023-12-20 03:59:58,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 600. [2023-12-20 03:59:58,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 391 states have (on average 1.1994884910485935) internal successors, (469), 390 states have internal predecessors, (469), 136 states have call successors, (136), 62 states have call predecessors, (136), 72 states have return successors, (190), 147 states have call predecessors, (190), 136 states have call successors, (190) [2023-12-20 03:59:58,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 795 transitions. [2023-12-20 03:59:58,469 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 795 transitions. Word has length 227 [2023-12-20 03:59:58,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:58,469 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 795 transitions. [2023-12-20 03:59:58,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 27 states have (on average 4.888888888888889) internal successors, (132), 24 states have internal predecessors, (132), 18 states have call successors, (71), 12 states have call predecessors, (71), 11 states have return successors, (71), 14 states have call predecessors, (71), 18 states have call successors, (71) [2023-12-20 03:59:58,469 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 795 transitions. [2023-12-20 03:59:58,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-20 03:59:58,472 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:58,472 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] [2023-12-20 03:59:58,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 03:59:58,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:58,682 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:58,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:58,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1204573957, now seen corresponding path program 1 times [2023-12-20 03:59:58,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:58,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337054267] [2023-12-20 03:59:58,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:58,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:00:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 04:00:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 04:00:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 04:00:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 04:00:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-20 04:00:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 04:00:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 04:00:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 04:00:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 04:00:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 04:00:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 04:00:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 04:00:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 04:00:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 04:00:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 04:00:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 04:00:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-20 04:00:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-20 04:00:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-20 04:00:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-20 04:00:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 04:00:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 04:00:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 04:00:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 04:00:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 04:00:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-20 04:00:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-20 04:00:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1316 trivial. 0 not checked. [2023-12-20 04:00:00,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:00:00,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337054267] [2023-12-20 04:00:00,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337054267] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:00:00,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937938486] [2023-12-20 04:00:00,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:00:00,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:00:00,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:00:00,997 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:00:01,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-20 04:00:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:01,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 1842 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-20 04:00:01,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:00:01,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-20 04:00:12,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:00:12,448 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:00:12,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 48 [2023-12-20 04:00:16,601 INFO L349 Elim1Store]: treesize reduction 64, result has 54.9 percent of original size [2023-12-20 04:00:16,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 104 [2023-12-20 04:00:42,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 464 proven. 4 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2023-12-20 04:00:42,781 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:00:42,936 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 25 treesize of output 23 [2023-12-20 04:00:42,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2023-12-20 04:00:43,251 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 20 treesize of output 18 [2023-12-20 04:00:43,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-12-20 04:00:43,300 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 20 treesize of output 18 [2023-12-20 04:00:43,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-12-20 04:00:43,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1315 trivial. 0 not checked. [2023-12-20 04:00:43,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937938486] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:00:43,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:00:43,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 9] total 39 [2023-12-20 04:00:43,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008838097] [2023-12-20 04:00:43,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:00:43,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-20 04:00:43,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:00:43,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-20 04:00:43,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1334, Unknown=5, NotChecked=0, Total=1482 [2023-12-20 04:00:43,400 INFO L87 Difference]: Start difference. First operand 600 states and 795 transitions. Second operand has 39 states, 36 states have (on average 4.111111111111111) internal successors, (148), 35 states have internal predecessors, (148), 19 states have call successors, (71), 13 states have call predecessors, (71), 14 states have return successors, (71), 17 states have call predecessors, (71), 19 states have call successors, (71) [2023-12-20 04:00:47,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:51,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:55,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:00,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:01:04,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:06,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:10,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:14,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:18,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:22,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:26,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:30,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:34,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:38,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:01:42,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:46,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:50,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:53,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:57,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:01,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:05,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:09,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:13,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:17,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:21,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:26,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:02:26,912 INFO L93 Difference]: Finished difference Result 1220 states and 1685 transitions. [2023-12-20 04:02:26,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-20 04:02:26,913 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 36 states have (on average 4.111111111111111) internal successors, (148), 35 states have internal predecessors, (148), 19 states have call successors, (71), 13 states have call predecessors, (71), 14 states have return successors, (71), 17 states have call predecessors, (71), 19 states have call successors, (71) Word has length 227 [2023-12-20 04:02:26,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:02:26,916 INFO L225 Difference]: With dead ends: 1220 [2023-12-20 04:02:26,916 INFO L226 Difference]: Without dead ends: 699 [2023-12-20 04:02:26,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 573 GetRequests, 494 SyntacticMatches, 7 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1167 ImplicationChecksByTransitivity, 43.0s TimeCoverageRelationStatistics Valid=859, Invalid=4538, Unknown=5, NotChecked=0, Total=5402 [2023-12-20 04:02:26,918 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 597 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 3363 mSolverCounterSat, 582 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 100.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 3968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 3363 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 101.0s IncrementalHoareTripleChecker+Time [2023-12-20 04:02:26,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 1610 Invalid, 3968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [582 Valid, 3363 Invalid, 23 Unknown, 0 Unchecked, 101.0s Time] [2023-12-20 04:02:26,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2023-12-20 04:02:26,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 643. [2023-12-20 04:02:26,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 414 states have (on average 1.1956521739130435) internal successors, (495), 413 states have internal predecessors, (495), 151 states have call successors, (151), 62 states have call predecessors, (151), 77 states have return successors, (241), 167 states have call predecessors, (241), 151 states have call successors, (241) [2023-12-20 04:02:26,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 887 transitions. [2023-12-20 04:02:26,981 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 887 transitions. Word has length 227 [2023-12-20 04:02:26,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:02:26,981 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 887 transitions. [2023-12-20 04:02:26,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 36 states have (on average 4.111111111111111) internal successors, (148), 35 states have internal predecessors, (148), 19 states have call successors, (71), 13 states have call predecessors, (71), 14 states have return successors, (71), 17 states have call predecessors, (71), 19 states have call successors, (71) [2023-12-20 04:02:26,982 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 887 transitions. [2023-12-20 04:02:26,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-20 04:02:26,987 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:02:26,988 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, 1, 1, 1] [2023-12-20 04:02:27,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-20 04:02:27,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:02:27,198 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:02:27,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:02:27,199 INFO L85 PathProgramCache]: Analyzing trace with hash -410780517, now seen corresponding path program 1 times [2023-12-20 04:02:27,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:02:27,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752879025] [2023-12-20 04:02:27,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:02:27,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:02:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:02:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 04:02:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 04:02:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 04:02:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 04:02:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-20 04:02:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 04:02:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-20 04:02:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 04:02:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-20 04:02:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-20 04:02:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-20 04:02:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 04:02:27,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-20 04:02:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-20 04:02:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-20 04:02:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-20 04:02:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-20 04:02:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-20 04:02:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-20 04:02:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-20 04:02:27,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-20 04:02:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-20 04:02:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-20 04:02:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 04:02:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-20 04:02:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-20 04:02:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 04:02:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-20 04:02:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1442 trivial. 0 not checked. [2023-12-20 04:02:27,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:02:27,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752879025] [2023-12-20 04:02:27,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752879025] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:02:27,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796168781] [2023-12-20 04:02:27,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:02:27,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:02:27,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:02:27,598 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:02:27,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-20 04:02:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:28,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 2001 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 04:02:28,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:02:28,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 387 proven. 0 refuted. 0 times theorem prover too weak. 1057 trivial. 0 not checked. [2023-12-20 04:02:28,410 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 04:02:28,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796168781] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:02:28,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 04:02:28,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2023-12-20 04:02:28,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094499758] [2023-12-20 04:02:28,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:02:28,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 04:02:28,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:02:28,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 04:02:28,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-20 04:02:28,411 INFO L87 Difference]: Start difference. First operand 643 states and 887 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-20 04:02:28,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:02:28,507 INFO L93 Difference]: Finished difference Result 1178 states and 1721 transitions. [2023-12-20 04:02:28,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 04:02:28,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 246 [2023-12-20 04:02:28,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:02:28,510 INFO L225 Difference]: With dead ends: 1178 [2023-12-20 04:02:28,510 INFO L226 Difference]: Without dead ends: 649 [2023-12-20 04:02:28,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-20 04:02:28,513 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 04:02:28,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 304 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 04:02:28,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2023-12-20 04:02:28,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 647. [2023-12-20 04:02:28,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 418 states have (on average 1.19377990430622) internal successors, (499), 417 states have internal predecessors, (499), 151 states have call successors, (151), 62 states have call predecessors, (151), 77 states have return successors, (241), 167 states have call predecessors, (241), 151 states have call successors, (241) [2023-12-20 04:02:28,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 891 transitions. [2023-12-20 04:02:28,576 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 891 transitions. Word has length 246 [2023-12-20 04:02:28,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:02:28,577 INFO L495 AbstractCegarLoop]: Abstraction has 647 states and 891 transitions. [2023-12-20 04:02:28,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-20 04:02:28,578 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 891 transitions. [2023-12-20 04:02:28,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-20 04:02:28,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:02:28,582 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, 1, 1, 1] [2023-12-20 04:02:28,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-20 04:02:28,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:02:28,795 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:02:28,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:02:28,795 INFO L85 PathProgramCache]: Analyzing trace with hash 87776285, now seen corresponding path program 1 times [2023-12-20 04:02:28,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:02:28,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899138964] [2023-12-20 04:02:28,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:02:28,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:02:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:02:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 04:02:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 04:02:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 04:02:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 04:02:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-20 04:02:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 04:02:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-20 04:02:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 04:02:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-20 04:02:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-20 04:02:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-20 04:02:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 04:02:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-20 04:02:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-20 04:02:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-20 04:02:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-20 04:02:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-20 04:02:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-20 04:02:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-20 04:02:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-20 04:02:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-20 04:02:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-20 04:02:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-20 04:02:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 04:02:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-20 04:02:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-20 04:02:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 04:02:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-20 04:02:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:30,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1425 trivial. 0 not checked. [2023-12-20 04:02:30,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:02:30,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899138964] [2023-12-20 04:02:30,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899138964] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:02:30,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:02:30,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-20 04:02:30,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607555908] [2023-12-20 04:02:30,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:02:30,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 04:02:30,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:02:30,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 04:02:30,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-12-20 04:02:30,542 INFO L87 Difference]: Start difference. First operand 647 states and 891 transitions. Second operand has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (33), 5 states have call predecessors, (33), 3 states have return successors, (33), 6 states have call predecessors, (33), 5 states have call successors, (33) [2023-12-20 04:02:34,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:38,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:42,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:44,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:02:44,389 INFO L93 Difference]: Finished difference Result 1429 states and 1959 transitions. [2023-12-20 04:02:44,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 04:02:44,390 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (33), 5 states have call predecessors, (33), 3 states have return successors, (33), 6 states have call predecessors, (33), 5 states have call successors, (33) Word has length 246 [2023-12-20 04:02:44,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:02:44,393 INFO L225 Difference]: With dead ends: 1429 [2023-12-20 04:02:44,393 INFO L226 Difference]: Without dead ends: 874 [2023-12-20 04:02:44,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=201, Invalid=449, Unknown=0, NotChecked=0, Total=650 [2023-12-20 04:02:44,394 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 421 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 299 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-12-20 04:02:44,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 477 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 833 Invalid, 3 Unknown, 0 Unchecked, 13.2s Time] [2023-12-20 04:02:44,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2023-12-20 04:02:44,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 705. [2023-12-20 04:02:44,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 452 states have (on average 1.1814159292035398) internal successors, (534), 451 states have internal predecessors, (534), 172 states have call successors, (172), 65 states have call predecessors, (172), 80 states have return successors, (264), 188 states have call predecessors, (264), 172 states have call successors, (264) [2023-12-20 04:02:44,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 970 transitions. [2023-12-20 04:02:44,463 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 970 transitions. Word has length 246 [2023-12-20 04:02:44,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:02:44,463 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 970 transitions. [2023-12-20 04:02:44,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (33), 5 states have call predecessors, (33), 3 states have return successors, (33), 6 states have call predecessors, (33), 5 states have call successors, (33) [2023-12-20 04:02:44,463 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 970 transitions. [2023-12-20 04:02:44,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-20 04:02:44,466 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:02:44,466 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, 1, 1, 1] [2023-12-20 04:02:44,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 04:02:44,466 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:02:44,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:02:44,467 INFO L85 PathProgramCache]: Analyzing trace with hash -341882021, now seen corresponding path program 1 times [2023-12-20 04:02:44,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:02:44,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017220272] [2023-12-20 04:02:44,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:02:44,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:02:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:02:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 04:02:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 04:02:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 04:02:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 04:02:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-20 04:02:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 04:02:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-20 04:02:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 04:02:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-20 04:02:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-20 04:02:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-20 04:02:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 04:02:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-20 04:02:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-20 04:02:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-20 04:02:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-20 04:02:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-20 04:02:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-20 04:02:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-20 04:02:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-20 04:02:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-20 04:02:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-20 04:02:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-20 04:02:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 04:02:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-20 04:02:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-20 04:02:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 04:02:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-20 04:02:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1437 trivial. 0 not checked. [2023-12-20 04:02:46,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:02:46,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017220272] [2023-12-20 04:02:46,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017220272] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:02:46,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464229998] [2023-12-20 04:02:46,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:02:46,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:02:46,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:02:46,764 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:02:46,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-20 04:02:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 1993 conjuncts, 63 conjunts are in the unsatisfiable core [2023-12-20 04:02:54,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:02:54,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-20 04:02:55,191 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 7 treesize of output 3 [2023-12-20 04:02:55,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 532 proven. 45 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2023-12-20 04:02:55,262 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:02:55,638 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 20 treesize of output 18 [2023-12-20 04:02:55,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-12-20 04:02:56,626 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 20 treesize of output 18 [2023-12-20 04:02:56,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-12-20 04:02:56,764 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 20 treesize of output 18 [2023-12-20 04:02:56,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-12-20 04:02:57,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 24 proven. 21 refuted. 0 times theorem prover too weak. 1399 trivial. 0 not checked. [2023-12-20 04:02:57,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464229998] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:02:57,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:02:57,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 23, 21] total 57 [2023-12-20 04:02:57,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981434321] [2023-12-20 04:02:57,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:02:57,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2023-12-20 04:02:57,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:02:57,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2023-12-20 04:02:57,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=382, Invalid=2810, Unknown=0, NotChecked=0, Total=3192 [2023-12-20 04:02:57,154 INFO L87 Difference]: Start difference. First operand 705 states and 970 transitions. Second operand has 57 states, 50 states have (on average 3.52) internal successors, (176), 51 states have internal predecessors, (176), 31 states have call successors, (79), 18 states have call predecessors, (79), 22 states have return successors, (79), 30 states have call predecessors, (79), 31 states have call successors, (79) [2023-12-20 04:03:01,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:05,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:09,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:13,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:17,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:21,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:25,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:29,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:33,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:37,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:41,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:45,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:49,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:53,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:57,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:01,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:05,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:09,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:13,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:17,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:19,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:23,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:27,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:30,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:34,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:38,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:42,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:46,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:50,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:54,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:58,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:02,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:06,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:10,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:14,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:18,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:22,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:26,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:30,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:34,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:02,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:06:02,568 INFO L93 Difference]: Finished difference Result 3138 states and 4357 transitions. [2023-12-20 04:06:02,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2023-12-20 04:06:02,569 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 50 states have (on average 3.52) internal successors, (176), 51 states have internal predecessors, (176), 31 states have call successors, (79), 18 states have call predecessors, (79), 22 states have return successors, (79), 30 states have call predecessors, (79), 31 states have call successors, (79) Word has length 246 [2023-12-20 04:06:02,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:06:02,602 INFO L225 Difference]: With dead ends: 3138 [2023-12-20 04:06:02,602 INFO L226 Difference]: Without dead ends: 2483 [2023-12-20 04:06:02,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 555 SyntacticMatches, 1 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17675 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=6836, Invalid=42670, Unknown=0, NotChecked=0, Total=49506 [2023-12-20 04:06:02,613 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 4847 mSDsluCounter, 6764 mSDsCounter, 0 mSdLazyCounter, 14350 mSolverCounterSat, 5133 mSolverCounterUnsat, 38 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 167.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4847 SdHoareTripleChecker+Valid, 7282 SdHoareTripleChecker+Invalid, 19521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5133 IncrementalHoareTripleChecker+Valid, 14350 IncrementalHoareTripleChecker+Invalid, 38 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 169.7s IncrementalHoareTripleChecker+Time [2023-12-20 04:06:02,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4847 Valid, 7282 Invalid, 19521 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5133 Valid, 14350 Invalid, 38 Unknown, 0 Unchecked, 169.7s Time] [2023-12-20 04:06:02,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2483 states. [2023-12-20 04:06:02,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2483 to 1126. [2023-12-20 04:06:02,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 728 states have (on average 1.164835164835165) internal successors, (848), 723 states have internal predecessors, (848), 243 states have call successors, (243), 123 states have call predecessors, (243), 154 states have return successors, (346), 279 states have call predecessors, (346), 243 states have call successors, (346) [2023-12-20 04:06:02,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1437 transitions. [2023-12-20 04:06:02,781 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1437 transitions. Word has length 246 [2023-12-20 04:06:02,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:06:02,781 INFO L495 AbstractCegarLoop]: Abstraction has 1126 states and 1437 transitions. [2023-12-20 04:06:02,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 50 states have (on average 3.52) internal successors, (176), 51 states have internal predecessors, (176), 31 states have call successors, (79), 18 states have call predecessors, (79), 22 states have return successors, (79), 30 states have call predecessors, (79), 31 states have call successors, (79) [2023-12-20 04:06:02,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1437 transitions. [2023-12-20 04:06:02,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-12-20 04:06:02,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:06:02,786 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 9, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:06:02,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-20 04:06:03,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-20 04:06:03,012 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:06:03,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:06:03,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1770776808, now seen corresponding path program 1 times [2023-12-20 04:06:03,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:06:03,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65260030] [2023-12-20 04:06:03,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:06:03,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:06:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:14,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:06:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:19,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:19,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:19,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 04:06:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:19,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:19,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 04:06:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:20,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 04:06:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:20,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:20,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 04:06:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:20,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-20 04:06:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:20,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:21,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 04:06:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:21,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-20 04:06:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:21,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:21,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 04:06:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:21,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:21,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:21,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 04:06:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-20 04:06:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-20 04:06:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-20 04:06:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 04:06:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-20 04:06:22,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-20 04:06:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-20 04:06:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-20 04:06:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-20 04:06:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-20 04:06:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 04:06:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-20 04:06:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-12-20 04:06:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-20 04:06:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-20 04:06:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-20 04:06:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-20 04:06:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-20 04:06:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-20 04:06:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-20 04:06:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:22,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1582 backedges. 46 proven. 435 refuted. 0 times theorem prover too weak. 1101 trivial. 0 not checked. [2023-12-20 04:06:22,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:06:22,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65260030] [2023-12-20 04:06:22,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65260030] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:06:22,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510463075] [2023-12-20 04:06:22,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:06:22,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:06:22,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:06:22,077 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:06:22,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-20 04:06:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:31,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 2135 conjuncts, 237 conjunts are in the unsatisfiable core [2023-12-20 04:06:31,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:06:31,564 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 7 treesize of output 3 [2023-12-20 04:06:32,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-20 04:06:32,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 45 [2023-12-20 04:06:32,540 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:06:32,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 29 [2023-12-20 04:06:32,545 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:06:32,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2023-12-20 04:06:32,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-20 04:06:33,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-20 04:06:33,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-20 04:06:33,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-20 04:06:33,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2023-12-20 04:06:35,281 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 15 treesize of output 5 [2023-12-20 04:06:35,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:06:35,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 62 [2023-12-20 04:06:35,891 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2023-12-20 04:06:35,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 119 treesize of output 109 [2023-12-20 04:06:35,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-12-20 04:06:36,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:06:36,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 51 [2023-12-20 04:06:36,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:06:36,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 23 [2023-12-20 04:06:38,872 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-20 04:06:38,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 128 treesize of output 96 [2023-12-20 04:06:39,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:06:39,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2023-12-20 04:06:39,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:06:39,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2023-12-20 04:06:41,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:06:41,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2023-12-20 04:06:41,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:06:41,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2023-12-20 04:06:50,502 INFO L349 Elim1Store]: treesize reduction 36, result has 49.3 percent of original size [2023-12-20 04:06:50,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 79 treesize of output 111 [2023-12-20 04:06:50,542 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:06:50,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2023-12-20 04:06:51,710 INFO L349 Elim1Store]: treesize reduction 120, result has 16.1 percent of original size [2023-12-20 04:06:51,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 30 case distinctions, treesize of input 128 treesize of output 156 [2023-12-20 04:07:02,223 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:07:02,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 10 [2023-12-20 04:07:09,664 WARN L293 SmtUtils]: Spent 7.42s on a formula simplification that was a NOOP. DAG size: 543 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-20 04:07:09,665 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:07:09,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 6 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 837 treesize of output 1913 [2023-12-20 04:07:11,946 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:07:11,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 1358 treesize of output 1150 Received shutdown request... [2023-12-20 04:12:23,791 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 04:12:23,817 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-20 04:12:23,817 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 [2023-12-20 04:12:23,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-20 04:12:23,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-20 04:12:23,992 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 263 with TraceHistMax 27,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-149-2-1 context. [2023-12-20 04:12:23,996 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:12:23,997 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 04:12:23,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 04:12:23 BoogieIcfgContainer [2023-12-20 04:12:23,999 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 04:12:23,999 INFO L158 Benchmark]: Toolchain (without parser) took 842692.48ms. Allocated memory was 275.8MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 215.0MB in the beginning and 721.5MB in the end (delta: -506.5MB). Peak memory consumption was 872.7MB. Max. memory is 8.0GB. [2023-12-20 04:12:23,999 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 213.9MB. Free memory is still 164.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 04:12:23,999 INFO L158 Benchmark]: CACSL2BoogieTranslator took 558.80ms. Allocated memory is still 275.8MB. Free memory was 214.7MB in the beginning and 242.6MB in the end (delta: -27.9MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2023-12-20 04:12:23,999 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.55ms. Allocated memory is still 275.8MB. Free memory was 242.6MB in the beginning and 237.8MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-20 04:12:24,000 INFO L158 Benchmark]: Boogie Preprocessor took 72.36ms. Allocated memory is still 275.8MB. Free memory was 237.8MB in the beginning and 230.5MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-20 04:12:24,000 INFO L158 Benchmark]: RCFGBuilder took 4879.51ms. Allocated memory is still 275.8MB. Free memory was 230.5MB in the beginning and 174.4MB in the end (delta: 56.1MB). Peak memory consumption was 55.6MB. Max. memory is 8.0GB. [2023-12-20 04:12:24,000 INFO L158 Benchmark]: TraceAbstraction took 837114.37ms. Allocated memory was 275.8MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 173.9MB in the beginning and 721.5MB in the end (delta: -547.6MB). Peak memory consumption was 830.8MB. Max. memory is 8.0GB. [2023-12-20 04:12:24,001 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 213.9MB. Free memory is still 164.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 558.80ms. Allocated memory is still 275.8MB. Free memory was 214.7MB in the beginning and 242.6MB in the end (delta: -27.9MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 61.55ms. Allocated memory is still 275.8MB. Free memory was 242.6MB in the beginning and 237.8MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.36ms. Allocated memory is still 275.8MB. Free memory was 237.8MB in the beginning and 230.5MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 4879.51ms. Allocated memory is still 275.8MB. Free memory was 230.5MB in the beginning and 174.4MB in the end (delta: 56.1MB). Peak memory consumption was 55.6MB. Max. memory is 8.0GB. * TraceAbstraction took 837114.37ms. Allocated memory was 275.8MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 173.9MB in the beginning and 721.5MB in the end (delta: -547.6MB). Peak memory consumption was 830.8MB. 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 263 with TraceHistMax 27,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-149-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 113 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 837.1s, OverallIterations: 14, TraceHistogramMax: 27, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 384.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 82 mSolverCounterUnknown, 7701 SdHoareTripleChecker+Valid, 361.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7542 mSDsluCounter, 14438 SdHoareTripleChecker+Invalid, 358.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12094 mSDsCounter, 7060 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22785 IncrementalHoareTripleChecker+Invalid, 29927 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7060 mSolverCounterUnsat, 2344 mSDtfsCounter, 22785 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3904 GetRequests, 3444 SyntacticMatches, 10 SemanticMatches, 450 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20583 ImplicationChecksByTransitivity, 63.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1126occurred in iteration=13, InterpolantAutomatonStates: 327, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 1729 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 9.0s SatisfiabilityAnalysisTime, 55.6s InterpolantComputationTime, 4189 NumberOfCodeBlocks, 4069 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 5213 ConstructedInterpolants, 33 QuantifiedInterpolants, 15150 SizeOfPredicates, 46 NumberOfNonLiveVariables, 12330 ConjunctsInSsa, 186 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 30260/30389 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