/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-pthread/cs_queue-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:36:51,123 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:36:51,165 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 06:36:51,174 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:36:51,174 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:36:51,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:36:51,189 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:36:51,189 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:36:51,189 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:36:51,190 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:36:51,190 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:36:51,190 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:36:51,190 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:36:51,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:36:51,191 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:36:51,191 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:36:51,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:36:51,192 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:36:51,192 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 06:36:51,192 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:36:51,192 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:36:51,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:36:51,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:36:51,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:36:51,194 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:36:51,194 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:36:51,194 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:36:51,194 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:36:51,195 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:36:51,195 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:36:51,195 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:36:51,195 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:36:51,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:36:51,196 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:36:51,196 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:36:51,196 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:36:51,196 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 06:36:51,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 06:36:51,197 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:36:51,197 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:36:51,197 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:36:51,198 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:36:51,198 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:36:51,198 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 06:36:51,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:36:51,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:36:51,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:36:51,395 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:36:51,398 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:36:51,399 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_queue-1.i [2023-12-16 06:36:52,434 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:36:52,672 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:36:52,672 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_queue-1.i [2023-12-16 06:36:52,692 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cf416f83/e0f1e2ecd0d648689a3009087b8d9412/FLAG85fc264e2 [2023-12-16 06:36:52,704 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cf416f83/e0f1e2ecd0d648689a3009087b8d9412 [2023-12-16 06:36:52,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:36:52,707 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:36:52,711 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:36:52,711 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:36:52,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:36:52,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:36:52" (1/1) ... [2023-12-16 06:36:52,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f0f6c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:52, skipping insertion in model container [2023-12-16 06:36:52,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:36:52" (1/1) ... [2023-12-16 06:36:52,767 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:36:53,068 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_queue-1.i[34744,34757] [2023-12-16 06:36:53,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:36:53,230 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:36:53,249 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_queue-1.i[34744,34757] [2023-12-16 06:36:53,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:36:53,363 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:36:53,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:53 WrapperNode [2023-12-16 06:36:53,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:36:53,373 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:36:53,373 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:36:53,373 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:36:53,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:53" (1/1) ... [2023-12-16 06:36:53,411 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:53" (1/1) ... [2023-12-16 06:36:53,487 INFO L138 Inliner]: procedures = 251, calls = 534, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 1166 [2023-12-16 06:36:53,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:36:53,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:36:53,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:36:53,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:36:53,496 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:53" (1/1) ... [2023-12-16 06:36:53,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:53" (1/1) ... [2023-12-16 06:36:53,504 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:53" (1/1) ... [2023-12-16 06:36:53,554 INFO L175 MemorySlicer]: Split 305 memory accesses to 19 slices as follows [68, 2, 8, 3, 8, 3, 8, 20, 12, 43, 8, 8, 7, 6, 50, 0, 3, 7, 41]. 22 percent of accesses are in the largest equivalence class. The 28 initializations are split as follows [0, 2, 2, 0, 3, 0, 3, 6, 6, 0, 2, 2, 0, 2, 0, 0, 0, 0, 0]. The 94 writes are split as follows [34, 0, 3, 1, 2, 1, 2, 8, 3, 22, 4, 4, 1, 2, 4, 0, 1, 1, 1]. [2023-12-16 06:36:53,555 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:53" (1/1) ... [2023-12-16 06:36:53,555 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:53" (1/1) ... [2023-12-16 06:36:53,581 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:53" (1/1) ... [2023-12-16 06:36:53,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:53" (1/1) ... [2023-12-16 06:36:53,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:53" (1/1) ... [2023-12-16 06:36:53,599 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:53" (1/1) ... [2023-12-16 06:36:53,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:36:53,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:36:53,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:36:53,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:36:53,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:53" (1/1) ... [2023-12-16 06:36:53,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:36:53,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:36:53,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 06:36:53,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 06:36:53,668 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 06:36:53,668 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 06:36:53,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-16 06:36:53,668 INFO L130 BoogieDeclarations]: Found specification of procedure empty [2023-12-16 06:36:53,669 INFO L138 BoogieDeclarations]: Found implementation of procedure empty [2023-12-16 06:36:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2023-12-16 06:36:53,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2023-12-16 06:36:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-16 06:36:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-16 06:36:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-16 06:36:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-12-16 06:36:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-12-16 06:36:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-12-16 06:36:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-12-16 06:36:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-12-16 06:36:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-12-16 06:36:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-12-16 06:36:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-12-16 06:36:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-12-16 06:36:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-12-16 06:36:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-12-16 06:36:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-12-16 06:36:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-12-16 06:36:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-12-16 06:36:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-12-16 06:36:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2023-12-16 06:36:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-16 06:36:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-12-16 06:36:53,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-12-16 06:36:53,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-12-16 06:36:53,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-12-16 06:36:53,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-12-16 06:36:53,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-12-16 06:36:53,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-12-16 06:36:53,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-12-16 06:36:53,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-12-16 06:36:53,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-12-16 06:36:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-12-16 06:36:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-12-16 06:36:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-12-16 06:36:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-12-16 06:36:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-12-16 06:36:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-12-16 06:36:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-12-16 06:36:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-12-16 06:36:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2023-12-16 06:36:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2023-12-16 06:36:53,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2023-12-16 06:36:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-16 06:36:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-16 06:36:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-16 06:36:53,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-16 06:36:53,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-16 06:36:53,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-16 06:36:53,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-16 06:36:53,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-16 06:36:53,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-16 06:36:53,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-16 06:36:53,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-16 06:36:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-16 06:36:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-16 06:36:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-16 06:36:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-12-16 06:36:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-12-16 06:36:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-12-16 06:36:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-12-16 06:36:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-12-16 06:36:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-16 06:36:53,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-16 06:36:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-16 06:36:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-16 06:36:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-16 06:36:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-16 06:36:53,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-16 06:36:53,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-16 06:36:53,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-16 06:36:53,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-16 06:36:53,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-16 06:36:53,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-16 06:36:53,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-16 06:36:53,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-16 06:36:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-16 06:36:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-16 06:36:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-12-16 06:36:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-12-16 06:36:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-12-16 06:36:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-12-16 06:36:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-12-16 06:36:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:36:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-16 06:36:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-16 06:36:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-16 06:36:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-12-16 06:36:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-12-16 06:36:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-12-16 06:36:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-12-16 06:36:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-12-16 06:36:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-12-16 06:36:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-12-16 06:36:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-12-16 06:36:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-12-16 06:36:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-12-16 06:36:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-12-16 06:36:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-12-16 06:36:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-12-16 06:36:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-12-16 06:36:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-12-16 06:36:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2023-12-16 06:36:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-12-16 06:36:53,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-12-16 06:36:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-12-16 06:36:53,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-12-16 06:36:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-16 06:36:53,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-16 06:36:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-12-16 06:36:53,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-12-16 06:36:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 06:36:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 06:36:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 06:36:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 06:36:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-16 06:36:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-16 06:36:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-16 06:36:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-16 06:36:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-16 06:36:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-16 06:36:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-16 06:36:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-16 06:36:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-16 06:36:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-16 06:36:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-16 06:36:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-16 06:36:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-16 06:36:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-16 06:36:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-16 06:36:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:36:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:36:53,940 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:36:53,942 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:36:54,042 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-16 06:36:54,043 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-16 06:36:54,043 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);#res := 0; [2023-12-16 06:36:54,043 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);#res := 0; [2023-12-16 06:36:54,388 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093: SUMMARY for call __CS_cs(); srcloc: null [2023-12-16 06:36:54,389 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t2_#res#1.base, t2_#res#1.offset := 0, 0; [2023-12-16 06:36:54,389 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-16 06:36:54,389 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129: SUMMARY for call __CS_cs(); srcloc: null [2023-12-16 06:36:54,389 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-12-16 06:36:54,389 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-16 06:36:54,389 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t2_#res#1.base, t2_#res#1.offset := 0, 0; [2023-12-16 06:36:54,389 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-16 06:36:54,389 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##83: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-16 06:36:54,389 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##82: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);dequeue_#res#1 := 0; [2023-12-16 06:36:54,389 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-16 06:36:54,389 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t2_#res#1.base, t2_#res#1.offset := 0, 0; [2023-12-16 06:36:54,389 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-16 06:36:54,390 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-12-16 06:36:54,390 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-16 06:36:54,390 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-12-16 06:36:54,390 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##149: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);enqueue_#res#1 := 0; [2023-12-16 06:36:54,390 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##150: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-16 06:36:54,390 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##166: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t1_#res#1.base, t1_#res#1.offset := 0, 0; [2023-12-16 06:36:54,390 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##167: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-16 06:36:54,390 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##109: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t2_#res#1.base, t2_#res#1.offset := 0, 0; [2023-12-16 06:36:54,390 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-16 06:36:58,783 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:36:58,827 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:36:58,828 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-16 06:36:58,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:36:58 BoogieIcfgContainer [2023-12-16 06:36:58,828 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:36:58,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:36:58,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:36:58,832 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:36:58,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:36:52" (1/3) ... [2023-12-16 06:36:58,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ccb6924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:36:58, skipping insertion in model container [2023-12-16 06:36:58,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:53" (2/3) ... [2023-12-16 06:36:58,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ccb6924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:36:58, skipping insertion in model container [2023-12-16 06:36:58,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:36:58" (3/3) ... [2023-12-16 06:36:58,834 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_queue-1.i [2023-12-16 06:36:58,846 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:36:58,847 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 06:36:58,897 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:36:58,907 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;@33bcf60d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:36:58,908 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 06:36:58,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 332 states, 189 states have (on average 1.507936507936508) internal successors, (285), 191 states have internal predecessors, (285), 132 states have call successors, (132), 9 states have call predecessors, (132), 9 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-16 06:36:58,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2023-12-16 06:36:58,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:36:58,955 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:36:58,956 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:36:58,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:36:58,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1278456058, now seen corresponding path program 1 times [2023-12-16 06:36:58,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:36:58,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337235970] [2023-12-16 06:36:58,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:36:58,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:36:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 06:36:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 06:36:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 06:36:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-16 06:36:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 06:36:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-16 06:36:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-16 06:36:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 06:36:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 06:36:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-16 06:36:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 06:36:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 06:36:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 06:36:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 06:36:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 06:36:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 06:36:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-16 06:36:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-16 06:36:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 06:36:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-16 06:36:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-16 06:36:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-16 06:36:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-16 06:36:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-16 06:36:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-16 06:36:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-16 06:36:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-16 06:36:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-16 06:36:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-16 06:36:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:59,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-16 06:37:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-16 06:37:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-16 06:37:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-16 06:37:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-16 06:37:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-16 06:37:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-16 06:37:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 06:37:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-16 06:37:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-16 06:37:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-16 06:37:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-16 06:37:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-16 06:37:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-16 06:37:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-16 06:37:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-16 06:37:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-16 06:37:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-16 06:37:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-16 06:37:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-16 06:37:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-16 06:37:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-16 06:37:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-12-16 06:37:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,100 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2023-12-16 06:37:00,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:37:00,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337235970] [2023-12-16 06:37:00,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337235970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:37:00,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:37:00,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:37:00,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346870363] [2023-12-16 06:37:00,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:37:00,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:37:00,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:37:00,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:37:00,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:37:00,135 INFO L87 Difference]: Start difference. First operand has 332 states, 189 states have (on average 1.507936507936508) internal successors, (285), 191 states have internal predecessors, (285), 132 states have call successors, (132), 9 states have call predecessors, (132), 9 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-16 06:37:00,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:37:00,308 INFO L93 Difference]: Finished difference Result 668 states and 1233 transitions. [2023-12-16 06:37:00,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:37:00,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 325 [2023-12-16 06:37:00,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:37:00,320 INFO L225 Difference]: With dead ends: 668 [2023-12-16 06:37:00,320 INFO L226 Difference]: Without dead ends: 335 [2023-12-16 06:37:00,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:37:00,333 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 9 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:37:00,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1043 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:37:00,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2023-12-16 06:37:00,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 329. [2023-12-16 06:37:00,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 188 states have (on average 1.4574468085106382) internal successors, (274), 190 states have internal predecessors, (274), 131 states have call successors, (131), 9 states have call predecessors, (131), 9 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130) [2023-12-16 06:37:00,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 535 transitions. [2023-12-16 06:37:00,410 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 535 transitions. Word has length 325 [2023-12-16 06:37:00,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:37:00,411 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 535 transitions. [2023-12-16 06:37:00,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-16 06:37:00,412 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 535 transitions. [2023-12-16 06:37:00,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2023-12-16 06:37:00,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:37:00,419 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:37:00,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 06:37:00,422 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:37:00,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:37:00,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1901390565, now seen corresponding path program 1 times [2023-12-16 06:37:00,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:37:00,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413486818] [2023-12-16 06:37:00,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:00,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:37:00,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 06:37:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-16 06:37:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 06:37:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 06:37:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 06:37:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 06:37:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 06:37:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 06:37:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-16 06:37:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 06:37:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 06:37:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-16 06:37:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 06:37:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-16 06:37:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-16 06:37:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-16 06:37:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-16 06:37:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 06:37:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-16 06:37:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-16 06:37:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-16 06:37:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-16 06:37:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-16 06:37:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-16 06:37:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-16 06:37:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-16 06:37:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 06:37:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:00,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-16 06:37:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-16 06:37:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 06:37:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-16 06:37:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-16 06:37:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-16 06:37:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-16 06:37:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-16 06:37:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-16 06:37:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-16 06:37:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-16 06:37:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-16 06:37:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-16 06:37:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-16 06:37:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-16 06:37:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-16 06:37:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-16 06:37:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-16 06:37:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-16 06:37:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2023-12-16 06:37:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-12-16 06:37:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-12-16 06:37:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-12-16 06:37:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2023-12-16 06:37:01,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2023-12-16 06:37:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,099 INFO L134 CoverageAnalysis]: Checked inductivity of 5305 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2023-12-16 06:37:01,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:37:01,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413486818] [2023-12-16 06:37:01,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413486818] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:37:01,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:37:01,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:37:01,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885369748] [2023-12-16 06:37:01,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:37:01,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:37:01,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:37:01,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:37:01,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:37:01,103 INFO L87 Difference]: Start difference. First operand 329 states and 535 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-16 06:37:01,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:37:01,189 INFO L93 Difference]: Finished difference Result 659 states and 1074 transitions. [2023-12-16 06:37:01,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:37:01,190 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), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 332 [2023-12-16 06:37:01,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:37:01,197 INFO L225 Difference]: With dead ends: 659 [2023-12-16 06:37:01,197 INFO L226 Difference]: Without dead ends: 332 [2023-12-16 06:37:01,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:37:01,200 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 0 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:37:01,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1040 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:37:01,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2023-12-16 06:37:01,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2023-12-16 06:37:01,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 191 states have (on average 1.450261780104712) internal successors, (277), 193 states have internal predecessors, (277), 131 states have call successors, (131), 9 states have call predecessors, (131), 9 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130) [2023-12-16 06:37:01,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 538 transitions. [2023-12-16 06:37:01,242 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 538 transitions. Word has length 332 [2023-12-16 06:37:01,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:37:01,243 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 538 transitions. [2023-12-16 06:37:01,243 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), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-16 06:37:01,243 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 538 transitions. [2023-12-16 06:37:01,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2023-12-16 06:37:01,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:37:01,248 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:37:01,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 06:37:01,249 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:37:01,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:37:01,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1982787695, now seen corresponding path program 1 times [2023-12-16 06:37:01,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:37:01,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092007404] [2023-12-16 06:37:01,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:01,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:37:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-16 06:37:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-16 06:37:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 06:37:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 06:37:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 06:37:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 06:37:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 06:37:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 06:37:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 06:37:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 06:37:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 06:37:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 06:37:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 06:37:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-16 06:37:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-16 06:37:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-16 06:37:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-16 06:37:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-16 06:37:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-16 06:37:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-16 06:37:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-16 06:37:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-16 06:37:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-16 06:37:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-16 06:37:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-16 06:37:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-16 06:37:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-16 06:37:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-16 06:37:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-16 06:37:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-16 06:37:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-16 06:37:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-16 06:37:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-16 06:37:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-16 06:37:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-16 06:37:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-16 06:37:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 06:37:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-16 06:37:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 06:37:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-16 06:37:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 06:37:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-16 06:37:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 06:37:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-16 06:37:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-16 06:37:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-16 06:37:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-16 06:37:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-16 06:37:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-16 06:37:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-16 06:37:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-16 06:37:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-16 06:37:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:01,869 INFO L134 CoverageAnalysis]: Checked inductivity of 5308 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5306 trivial. 0 not checked. [2023-12-16 06:37:01,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:37:01,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092007404] [2023-12-16 06:37:01,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092007404] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:37:01,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11260768] [2023-12-16 06:37:01,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:01,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:37:01,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:37:01,873 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) [2023-12-16 06:37:01,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 06:37:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:02,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 1744 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 06:37:02,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:37:02,705 INFO L134 CoverageAnalysis]: Checked inductivity of 5308 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5306 trivial. 0 not checked. [2023-12-16 06:37:02,705 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:37:02,840 INFO L134 CoverageAnalysis]: Checked inductivity of 5308 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5306 trivial. 0 not checked. [2023-12-16 06:37:02,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11260768] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:37:02,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 06:37:02,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-12-16 06:37:02,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931824511] [2023-12-16 06:37:02,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 06:37:02,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:37:02,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:37:02,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:37:02,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:37:02,842 INFO L87 Difference]: Start difference. First operand 332 states and 538 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 1 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (104), 1 states have call predecessors, (104), 1 states have call successors, (104) [2023-12-16 06:37:02,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:37:02,983 INFO L93 Difference]: Finished difference Result 669 states and 1088 transitions. [2023-12-16 06:37:02,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:37:02,984 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 1 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (104), 1 states have call predecessors, (104), 1 states have call successors, (104) Word has length 335 [2023-12-16 06:37:02,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:37:02,986 INFO L225 Difference]: With dead ends: 669 [2023-12-16 06:37:02,986 INFO L226 Difference]: Without dead ends: 339 [2023-12-16 06:37:02,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 776 GetRequests, 771 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:37:02,988 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 1 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3107 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:37:02,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3107 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:37:02,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-12-16 06:37:02,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2023-12-16 06:37:03,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 198 states have (on average 1.4343434343434343) internal successors, (284), 200 states have internal predecessors, (284), 131 states have call successors, (131), 9 states have call predecessors, (131), 9 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130) [2023-12-16 06:37:03,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 545 transitions. [2023-12-16 06:37:03,002 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 545 transitions. Word has length 335 [2023-12-16 06:37:03,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:37:03,002 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 545 transitions. [2023-12-16 06:37:03,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 1 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (104), 1 states have call predecessors, (104), 1 states have call successors, (104) [2023-12-16 06:37:03,002 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 545 transitions. [2023-12-16 06:37:03,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2023-12-16 06:37:03,006 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:37:03,006 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:37:03,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 06:37:03,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:37:03,214 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:37:03,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:37:03,215 INFO L85 PathProgramCache]: Analyzing trace with hash -2093305563, now seen corresponding path program 2 times [2023-12-16 06:37:03,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:37:03,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014772811] [2023-12-16 06:37:03,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:03,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:37:03,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 06:37:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 06:37:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 06:37:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 06:37:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 06:37:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 06:37:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 06:37:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 06:37:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 06:37:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 06:37:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 06:37:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 06:37:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 06:37:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 06:37:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 06:37:03,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 06:37:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-16 06:37:03,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-16 06:37:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-16 06:37:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-16 06:37:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-16 06:37:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-16 06:37:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 06:37:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-16 06:37:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-16 06:37:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-16 06:37:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-16 06:37:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-16 06:37:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-16 06:37:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-16 06:37:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-16 06:37:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-12-16 06:37:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-16 06:37:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-16 06:37:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-16 06:37:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-16 06:37:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-16 06:37:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-16 06:37:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-16 06:37:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-16 06:37:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-12-16 06:37:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-16 06:37:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-16 06:37:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-12-16 06:37:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-16 06:37:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-16 06:37:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-12-16 06:37:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-16 06:37:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-16 06:37:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-16 06:37:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-12-16 06:37:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-12-16 06:37:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:03,892 INFO L134 CoverageAnalysis]: Checked inductivity of 5328 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5327 trivial. 0 not checked. [2023-12-16 06:37:03,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:37:03,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014772811] [2023-12-16 06:37:03,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014772811] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:37:03,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969182214] [2023-12-16 06:37:03,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 06:37:03,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:37:03,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:37:03,894 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) [2023-12-16 06:37:03,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 06:37:04,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 06:37:04,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:37:04,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-16 06:37:04,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:37:04,753 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 21 treesize of output 20 [2023-12-16 06:37:05,637 INFO L134 CoverageAnalysis]: Checked inductivity of 5328 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5328 trivial. 0 not checked. [2023-12-16 06:37:05,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 06:37:05,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969182214] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:37:05,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 06:37:05,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 9 [2023-12-16 06:37:05,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130648369] [2023-12-16 06:37:05,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:37:05,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:37:05,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:37:05,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:37:05,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:37:05,641 INFO L87 Difference]: Start difference. First operand 339 states and 545 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-16 06:37:09,707 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 [] [2023-12-16 06:37:13,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:37:17,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:37:19,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:37:19,426 INFO L93 Difference]: Finished difference Result 983 states and 1606 transitions. [2023-12-16 06:37:19,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 06:37:19,427 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 342 [2023-12-16 06:37:19,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:37:19,434 INFO L225 Difference]: With dead ends: 983 [2023-12-16 06:37:19,434 INFO L226 Difference]: Without dead ends: 981 [2023-12-16 06:37:19,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-12-16 06:37:19,436 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 1316 mSDsluCounter, 1888 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 403 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 2465 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2023-12-16 06:37:19,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 2465 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 382 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time] [2023-12-16 06:37:19,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2023-12-16 06:37:19,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 658. [2023-12-16 06:37:19,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 377 states have (on average 1.442970822281167) internal successors, (544), 380 states have internal predecessors, (544), 261 states have call successors, (261), 19 states have call predecessors, (261), 19 states have return successors, (266), 260 states have call predecessors, (266), 259 states have call successors, (266) [2023-12-16 06:37:19,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 1071 transitions. [2023-12-16 06:37:19,485 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 1071 transitions. Word has length 342 [2023-12-16 06:37:19,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:37:19,487 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 1071 transitions. [2023-12-16 06:37:19,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-16 06:37:19,487 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 1071 transitions. [2023-12-16 06:37:19,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-12-16 06:37:19,492 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:37:19,492 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:37:19,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 06:37:19,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-12-16 06:37:19,700 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:37:19,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:37:19,700 INFO L85 PathProgramCache]: Analyzing trace with hash 114060924, now seen corresponding path program 1 times [2023-12-16 06:37:19,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:37:19,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517614586] [2023-12-16 06:37:19,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:19,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:37:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 06:37:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 06:37:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 06:37:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 06:37:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 06:37:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 06:37:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 06:37:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 06:37:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 06:37:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 06:37:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 06:37:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 06:37:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 06:37:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 06:37:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 06:37:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 06:37:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-16 06:37:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-16 06:37:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-16 06:37:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-16 06:37:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-16 06:37:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-16 06:37:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 06:37:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-16 06:37:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-16 06:37:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-16 06:37:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-16 06:37:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-16 06:37:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-16 06:37:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-16 06:37:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-16 06:37:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-12-16 06:37:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-16 06:37:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-16 06:37:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-16 06:37:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-16 06:37:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-16 06:37:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-16 06:37:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-16 06:37:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-16 06:37:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-12-16 06:37:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-16 06:37:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-16 06:37:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-12-16 06:37:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-16 06:37:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-16 06:37:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-12-16 06:37:20,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-16 06:37:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-16 06:37:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-16 06:37:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-12-16 06:37:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-12-16 06:37:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2023-12-16 06:37:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,337 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 5327 trivial. 0 not checked. [2023-12-16 06:37:20,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:37:20,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517614586] [2023-12-16 06:37:20,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517614586] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:37:20,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408467635] [2023-12-16 06:37:20,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:20,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:37:20,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:37:20,339 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) [2023-12-16 06:37:20,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 06:37:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:21,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 1882 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 06:37:21,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:37:21,329 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 5319 trivial. 0 not checked. [2023-12-16 06:37:21,330 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:37:21,543 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 5317 trivial. 0 not checked. [2023-12-16 06:37:21,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408467635] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:37:21,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 06:37:21,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2023-12-16 06:37:21,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164602768] [2023-12-16 06:37:21,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 06:37:21,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 06:37:21,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:37:21,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 06:37:21,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-12-16 06:37:21,546 INFO L87 Difference]: Start difference. First operand 658 states and 1071 transitions. Second operand has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 14 states have internal predecessors, (106), 1 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-16 06:37:22,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:37:22,272 INFO L93 Difference]: Finished difference Result 1357 states and 2213 transitions. [2023-12-16 06:37:22,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-16 06:37:22,273 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 14 states have internal predecessors, (106), 1 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 347 [2023-12-16 06:37:22,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:37:22,277 INFO L225 Difference]: With dead ends: 1357 [2023-12-16 06:37:22,277 INFO L226 Difference]: Without dead ends: 701 [2023-12-16 06:37:22,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 821 GetRequests, 789 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=396, Invalid=726, Unknown=0, NotChecked=0, Total=1122 [2023-12-16 06:37:22,281 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 36 mSDsluCounter, 2583 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:37:22,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3103 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:37:22,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2023-12-16 06:37:22,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 701. [2023-12-16 06:37:22,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 420 states have (on average 1.4047619047619047) internal successors, (590), 423 states have internal predecessors, (590), 261 states have call successors, (261), 19 states have call predecessors, (261), 19 states have return successors, (266), 260 states have call predecessors, (266), 259 states have call successors, (266) [2023-12-16 06:37:22,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1117 transitions. [2023-12-16 06:37:22,325 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1117 transitions. Word has length 347 [2023-12-16 06:37:22,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:37:22,325 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 1117 transitions. [2023-12-16 06:37:22,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 14 states have internal predecessors, (106), 1 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-16 06:37:22,326 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1117 transitions. [2023-12-16 06:37:22,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2023-12-16 06:37:22,347 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:37:22,347 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 20, 20, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:37:22,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 06:37:22,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:37:22,560 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:37:22,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:37:22,561 INFO L85 PathProgramCache]: Analyzing trace with hash 538449001, now seen corresponding path program 2 times [2023-12-16 06:37:22,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:37:22,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746290351] [2023-12-16 06:37:22,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:22,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:37:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 06:37:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 06:37:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 06:37:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 06:37:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 06:37:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 06:37:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-16 06:37:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-16 06:37:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 06:37:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-16 06:37:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-16 06:37:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-16 06:37:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-16 06:37:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-16 06:37:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-16 06:37:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-16 06:37:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-16 06:37:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-16 06:37:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-16 06:37:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-16 06:37:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-16 06:37:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-16 06:37:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-16 06:37:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-16 06:37:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-16 06:37:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-16 06:37:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 06:37:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-16 06:37:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-16 06:37:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-16 06:37:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-16 06:37:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-16 06:37:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-16 06:37:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-16 06:37:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-16 06:37:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-16 06:37:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-16 06:37:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-16 06:37:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-16 06:37:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-16 06:37:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-16 06:37:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-12-16 06:37:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-12-16 06:37:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-16 06:37:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-12-16 06:37:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-16 06:37:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-16 06:37:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-12-16 06:37:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-12-16 06:37:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-12-16 06:37:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-16 06:37:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-12-16 06:37:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-12-16 06:37:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:23,848 INFO L134 CoverageAnalysis]: Checked inductivity of 5802 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 5622 trivial. 0 not checked. [2023-12-16 06:37:23,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:37:23,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746290351] [2023-12-16 06:37:23,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746290351] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:37:23,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618777903] [2023-12-16 06:37:23,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 06:37:23,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:37:23,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:37:23,850 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) [2023-12-16 06:37:23,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 06:37:25,466 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 06:37:25,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:37:25,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 06:37:25,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:37:25,665 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 44 treesize of output 23 [2023-12-16 06:37:25,673 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 9 [2023-12-16 06:37:25,703 INFO L134 CoverageAnalysis]: Checked inductivity of 5802 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5802 trivial. 0 not checked. [2023-12-16 06:37:25,703 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 06:37:25,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618777903] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:37:25,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 06:37:25,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 15 [2023-12-16 06:37:25,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574361628] [2023-12-16 06:37:25,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:37:25,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 06:37:25,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:37:25,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 06:37:25,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:37:25,711 INFO L87 Difference]: Start difference. First operand 701 states and 1117 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2023-12-16 06:37:29,763 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 [] [2023-12-16 06:37:29,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:37:29,902 INFO L93 Difference]: Finished difference Result 1330 states and 2148 transitions. [2023-12-16 06:37:29,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:37:29,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 390 [2023-12-16 06:37:29,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:37:29,906 INFO L225 Difference]: With dead ends: 1330 [2023-12-16 06:37:29,906 INFO L226 Difference]: Without dead ends: 701 [2023-12-16 06:37:29,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2023-12-16 06:37:29,909 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 521 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:37:29,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 1028 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-12-16 06:37:29,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2023-12-16 06:37:29,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 701. [2023-12-16 06:37:29,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 420 states have (on average 1.4023809523809523) internal successors, (589), 423 states have internal predecessors, (589), 261 states have call successors, (261), 19 states have call predecessors, (261), 19 states have return successors, (266), 260 states have call predecessors, (266), 259 states have call successors, (266) [2023-12-16 06:37:29,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1116 transitions. [2023-12-16 06:37:29,946 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1116 transitions. Word has length 390 [2023-12-16 06:37:29,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:37:29,946 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 1116 transitions. [2023-12-16 06:37:29,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2023-12-16 06:37:29,947 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1116 transitions. [2023-12-16 06:37:29,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2023-12-16 06:37:29,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:37:29,953 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 20, 20, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:37:29,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 06:37:30,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:37:30,176 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:37:30,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:37:30,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1690182564, now seen corresponding path program 1 times [2023-12-16 06:37:30,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:37:30,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031952002] [2023-12-16 06:37:30,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:30,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:37:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-16 06:37:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 06:37:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 06:37:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 06:37:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 06:37:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 06:37:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-16 06:37:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-16 06:37:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 06:37:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-16 06:37:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-16 06:37:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-16 06:37:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-16 06:37:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-16 06:37:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-16 06:37:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-16 06:37:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-16 06:37:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-16 06:37:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-16 06:37:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-16 06:37:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-16 06:37:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-16 06:37:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-16 06:37:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-16 06:37:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-16 06:37:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-16 06:37:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 06:37:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-16 06:37:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-16 06:37:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-16 06:37:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-16 06:37:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-16 06:37:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-16 06:37:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-16 06:37:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-16 06:37:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-16 06:37:31,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-16 06:37:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-16 06:37:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-16 06:37:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-16 06:37:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-16 06:37:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-12-16 06:37:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-12-16 06:37:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-16 06:37:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-12-16 06:37:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-16 06:37:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-16 06:37:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-12-16 06:37:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-12-16 06:37:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-12-16 06:37:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-16 06:37:31,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-12-16 06:37:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-12-16 06:37:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2023-12-16 06:37:31,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-16 06:37:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-12-16 06:37:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,911 INFO L134 CoverageAnalysis]: Checked inductivity of 6010 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 5830 trivial. 0 not checked. [2023-12-16 06:37:31,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:37:31,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031952002] [2023-12-16 06:37:31,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031952002] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:37:31,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125291193] [2023-12-16 06:37:31,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:31,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:37:31,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:37:31,913 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) [2023-12-16 06:37:31,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 06:37:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:33,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 2819 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 06:37:33,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:37:33,139 INFO L134 CoverageAnalysis]: Checked inductivity of 6010 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 5832 trivial. 0 not checked. [2023-12-16 06:37:33,139 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:37:33,612 INFO L134 CoverageAnalysis]: Checked inductivity of 6010 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 5830 trivial. 0 not checked. [2023-12-16 06:37:33,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125291193] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:37:33,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 06:37:33,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 25 [2023-12-16 06:37:33,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017059896] [2023-12-16 06:37:33,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 06:37:33,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-16 06:37:33,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:37:33,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-16 06:37:33,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=342, Unknown=0, NotChecked=0, Total=600 [2023-12-16 06:37:33,615 INFO L87 Difference]: Start difference. First operand 701 states and 1116 transitions. Second operand has 25 states, 25 states have (on average 5.12) internal successors, (128), 23 states have internal predecessors, (128), 2 states have call successors, (115), 4 states have call predecessors, (115), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-12-16 06:37:37,888 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 [] [2023-12-16 06:37:41,898 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 [] [2023-12-16 06:37:44,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:37:44,594 INFO L93 Difference]: Finished difference Result 1439 states and 2313 transitions. [2023-12-16 06:37:44,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-16 06:37:44,594 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.12) internal successors, (128), 23 states have internal predecessors, (128), 2 states have call successors, (115), 4 states have call predecessors, (115), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 408 [2023-12-16 06:37:44,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:37:44,598 INFO L225 Difference]: With dead ends: 1439 [2023-12-16 06:37:44,598 INFO L226 Difference]: Without dead ends: 751 [2023-12-16 06:37:44,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 939 GetRequests, 914 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=258, Invalid=342, Unknown=0, NotChecked=0, Total=600 [2023-12-16 06:37:44,601 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 35 mSDsluCounter, 2375 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 190 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2855 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-12-16 06:37:44,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 2855 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 1169 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2023-12-16 06:37:44,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2023-12-16 06:37:44,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 745. [2023-12-16 06:37:44,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 462 states have (on average 1.3658008658008658) internal successors, (631), 467 states have internal predecessors, (631), 261 states have call successors, (261), 19 states have call predecessors, (261), 21 states have return successors, (270), 260 states have call predecessors, (270), 259 states have call successors, (270) [2023-12-16 06:37:44,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1162 transitions. [2023-12-16 06:37:44,647 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1162 transitions. Word has length 408 [2023-12-16 06:37:44,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:37:44,647 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 1162 transitions. [2023-12-16 06:37:44,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.12) internal successors, (128), 23 states have internal predecessors, (128), 2 states have call successors, (115), 4 states have call predecessors, (115), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-12-16 06:37:44,647 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1162 transitions. [2023-12-16 06:37:44,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2023-12-16 06:37:44,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:37:44,652 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 40, 40, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:37:44,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 06:37:44,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:37:44,864 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:37:44,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:37:44,864 INFO L85 PathProgramCache]: Analyzing trace with hash -181092225, now seen corresponding path program 1 times [2023-12-16 06:37:44,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:37:44,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966912568] [2023-12-16 06:37:44,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:44,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:37:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 06:37:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-16 06:37:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 06:37:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-16 06:37:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-16 06:37:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-16 06:37:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-16 06:37:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-16 06:37:46,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 06:37:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-16 06:37:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-16 06:37:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-16 06:37:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-16 06:37:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-16 06:37:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-16 06:37:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-16 06:37:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-16 06:37:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-12-16 06:37:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-16 06:37:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-16 06:37:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-16 06:37:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-16 06:37:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-16 06:37:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-16 06:37:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-16 06:37:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-16 06:37:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-12-16 06:37:46,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-16 06:37:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-16 06:37:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-12-16 06:37:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-16 06:37:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-16 06:37:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:46,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-12-16 06:37:47,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-16 06:37:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-16 06:37:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-16 06:37:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-12-16 06:37:47,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-12-16 06:37:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2023-12-16 06:37:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-12-16 06:37:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2023-12-16 06:37:47,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2023-12-16 06:37:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-12-16 06:37:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-12-16 06:37:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2023-12-16 06:37:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2023-12-16 06:37:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2023-12-16 06:37:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2023-12-16 06:37:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2023-12-16 06:37:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2023-12-16 06:37:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2023-12-16 06:37:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2023-12-16 06:37:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2023-12-16 06:37:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2023-12-16 06:37:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2023-12-16 06:37:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2023-12-16 06:37:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 7270 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7268 trivial. 0 not checked. [2023-12-16 06:37:47,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:37:47,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966912568] [2023-12-16 06:37:47,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966912568] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:37:47,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:37:47,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 06:37:47,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030730790] [2023-12-16 06:37:47,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:37:47,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:37:47,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:37:47,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:37:47,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:37:47,107 INFO L87 Difference]: Start difference. First operand 745 states and 1162 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2023-12-16 06:37:51,222 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 [] [2023-12-16 06:37:55,229 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 [] Received shutdown request... [2023-12-16 06:37:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 06:37:56,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-12-16 06:37:56,560 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 262 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 262 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:37:56,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 630 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 448 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2023-12-16 06:37:56,561 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 06:37:56,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 06:37:56,562 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (745states) and FLOYD_HOARE automaton (currently 9 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (320 states constructed, input type IntersectNwa). [2023-12-16 06:37:56,564 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:37:56,569 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2023-12-16 06:37:56,570 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:37:56,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:37:56 BoogieIcfgContainer [2023-12-16 06:37:56,573 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:37:56,574 INFO L158 Benchmark]: Toolchain (without parser) took 63866.69ms. Allocated memory was 190.8MB in the beginning and 657.5MB in the end (delta: 466.6MB). Free memory was 142.0MB in the beginning and 276.7MB in the end (delta: -134.8MB). Peak memory consumption was 332.9MB. Max. memory is 8.0GB. [2023-12-16 06:37:56,574 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory is still 138.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:37:56,574 INFO L158 Benchmark]: CACSL2BoogieTranslator took 661.42ms. Allocated memory was 190.8MB in the beginning and 259.0MB in the end (delta: 68.2MB). Free memory was 142.0MB in the beginning and 222.3MB in the end (delta: -80.3MB). Peak memory consumption was 53.4MB. Max. memory is 8.0GB. [2023-12-16 06:37:56,574 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.11ms. Allocated memory is still 259.0MB. Free memory was 221.7MB in the beginning and 212.8MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-16 06:37:56,574 INFO L158 Benchmark]: Boogie Preprocessor took 120.98ms. Allocated memory is still 259.0MB. Free memory was 212.8MB in the beginning and 200.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 06:37:56,575 INFO L158 Benchmark]: RCFGBuilder took 5218.94ms. Allocated memory is still 259.0MB. Free memory was 200.2MB in the beginning and 193.3MB in the end (delta: 7.0MB). Peak memory consumption was 99.2MB. Max. memory is 8.0GB. [2023-12-16 06:37:56,575 INFO L158 Benchmark]: TraceAbstraction took 57743.60ms. Allocated memory was 259.0MB in the beginning and 657.5MB in the end (delta: 398.5MB). Free memory was 192.8MB in the beginning and 276.7MB in the end (delta: -84.0MB). Peak memory consumption was 314.5MB. Max. memory is 8.0GB. [2023-12-16 06:37:56,576 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory is still 138.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 661.42ms. Allocated memory was 190.8MB in the beginning and 259.0MB in the end (delta: 68.2MB). Free memory was 142.0MB in the beginning and 222.3MB in the end (delta: -80.3MB). Peak memory consumption was 53.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 114.11ms. Allocated memory is still 259.0MB. Free memory was 221.7MB in the beginning and 212.8MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 120.98ms. Allocated memory is still 259.0MB. Free memory was 212.8MB in the beginning and 200.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * RCFGBuilder took 5218.94ms. Allocated memory is still 259.0MB. Free memory was 200.2MB in the beginning and 193.3MB in the end (delta: 7.0MB). Peak memory consumption was 99.2MB. Max. memory is 8.0GB. * TraceAbstraction took 57743.60ms. Allocated memory was 259.0MB in the beginning and 657.5MB in the end (delta: 398.5MB). Free memory was 192.8MB in the beginning and 276.7MB in the end (delta: -84.0MB). Peak memory consumption was 314.5MB. 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: 779]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 779). Cancelled while NwaCegarLoop was constructing difference of abstraction (745states) and FLOYD_HOARE automaton (currently 9 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (320 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 332 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 57.7s, OverallIterations: 8, TraceHistogramMax: 53, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 39.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 2190 SdHoareTripleChecker+Valid, 38.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2180 mSDsluCounter, 15271 SdHoareTripleChecker+Invalid, 37.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11446 mSDsCounter, 961 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2263 IncrementalHoareTripleChecker+Invalid, 3232 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 961 mSolverCounterUnsat, 3825 mSDtfsCounter, 2263 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3833 GetRequests, 3734 SyntacticMatches, 2 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=745occurred in iteration=7, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 335 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 4750 NumberOfCodeBlocks, 4056 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 5824 ConstructedInterpolants, 0 QuantifiedInterpolants, 9971 SizeOfPredicates, 16 NumberOfNonLiveVariables, 8289 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 89838/90083 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