/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-pthread/cs_time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 04:07:31,018 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 04:07:31,087 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 04:07:31,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 04:07:31,095 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 04:07:31,116 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 04:07:31,116 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 04:07:31,117 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 04:07:31,117 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 04:07:31,120 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 04:07:31,120 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 04:07:31,120 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 04:07:31,120 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 04:07:31,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 04:07:31,121 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 04:07:31,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 04:07:31,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 04:07:31,122 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 04:07:31,122 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 04:07:31,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 04:07:31,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 04:07:31,123 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 04:07:31,123 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 04:07:31,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 04:07:31,124 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 04:07:31,124 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 04:07:31,124 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 04:07:31,124 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 04:07:31,125 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 04:07:31,125 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 04:07:31,125 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 04:07:31,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 04:07:31,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 04:07:31,126 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 04:07:31,126 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 04:07:31,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 04:07:31,126 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 04:07:31,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 04:07:31,126 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 04:07:31,126 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 04:07:31,126 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 04:07:31,127 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 04:07:31,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 04:07:31,127 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 04:07:31,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 04:07:31,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 04:07:31,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 04:07:31,335 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 04:07:31,337 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 04:07:31,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_time_var_mutex.i [2023-12-20 04:07:32,290 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 04:07:32,524 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 04:07:32,525 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_time_var_mutex.i [2023-12-20 04:07:32,534 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e41d7ab5e/ceaa0c9daa024ebcb72bac5757a3a513/FLAG0e2482ad8 [2023-12-20 04:07:32,547 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e41d7ab5e/ceaa0c9daa024ebcb72bac5757a3a513 [2023-12-20 04:07:32,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 04:07:32,550 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 04:07:32,550 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 04:07:32,551 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 04:07:32,555 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 04:07:32,556 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 04:07:32" (1/1) ... [2023-12-20 04:07:32,556 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17987b8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:07:32, skipping insertion in model container [2023-12-20 04:07:32,556 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 04:07:32" (1/1) ... [2023-12-20 04:07:32,601 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 04:07:32,792 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_time_var_mutex.i[23611,23624] [2023-12-20 04:07:32,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 04:07:32,915 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 04:07:32,935 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_time_var_mutex.i[23611,23624] [2023-12-20 04:07:32,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 04:07:32,994 INFO L206 MainTranslator]: Completed translation [2023-12-20 04:07:32,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:07:32 WrapperNode [2023-12-20 04:07:32,994 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 04:07:32,995 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 04:07:32,995 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 04:07:32,995 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 04:07:33,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:07:32" (1/1) ... [2023-12-20 04:07:33,022 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:07:32" (1/1) ... [2023-12-20 04:07:33,056 INFO L138 Inliner]: procedures = 145, calls = 317, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 527 [2023-12-20 04:07:33,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 04:07:33,056 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 04:07:33,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 04:07:33,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 04:07:33,064 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:07:32" (1/1) ... [2023-12-20 04:07:33,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:07:32" (1/1) ... [2023-12-20 04:07:33,083 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:07:32" (1/1) ... [2023-12-20 04:07:33,131 INFO L175 MemorySlicer]: Split 165 memory accesses to 18 slices as follows [2, 8, 8, 5, 29, 21, 7, 8, 8, 17, 13, 6, 0, 5, 13, 5, 5, 5]. 18 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 3, 3, 0, 9, 9, 3, 3, 3, 6, 0, 2, 0, 0, 0, 0, 0, 0]. The 41 writes are split as follows [0, 2, 2, 1, 11, 6, 2, 2, 2, 5, 1, 2, 0, 1, 1, 1, 1, 1]. [2023-12-20 04:07:33,132 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:07:32" (1/1) ... [2023-12-20 04:07:33,132 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:07:32" (1/1) ... [2023-12-20 04:07:33,164 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:07:32" (1/1) ... [2023-12-20 04:07:33,167 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:07:32" (1/1) ... [2023-12-20 04:07:33,171 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:07:32" (1/1) ... [2023-12-20 04:07:33,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:07:32" (1/1) ... [2023-12-20 04:07:33,196 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 04:07:33,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 04:07:33,197 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 04:07:33,197 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 04:07:33,198 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:07:32" (1/1) ... [2023-12-20 04:07:33,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 04:07:33,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:07:33,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-20 04:07:33,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-20 04:07:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-20 04:07:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-20 04:07:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-20 04:07:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-20 04:07:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-20 04:07:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-20 04:07:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-20 04:07:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-20 04:07:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-20 04:07:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-20 04:07:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-20 04:07:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-20 04:07:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-20 04:07:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-20 04:07:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-12-20 04:07:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-12-20 04:07:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-12-20 04:07:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-12-20 04:07:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-20 04:07:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-20 04:07:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-20 04:07:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-20 04:07:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-20 04:07:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-20 04:07:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-20 04:07:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-20 04:07:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-20 04:07:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-20 04:07:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-20 04:07:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-20 04:07:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-20 04:07:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-20 04:07:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-12-20 04:07:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-12-20 04:07:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-12-20 04:07:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-12-20 04:07:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 04:07:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 04:07:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 04:07:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-20 04:07:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-20 04:07:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-20 04:07:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-20 04:07:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-12-20 04:07:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-12-20 04:07:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-12-20 04:07:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-12-20 04:07:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-12-20 04:07:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-12-20 04:07:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-12-20 04:07:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-12-20 04:07:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-12-20 04:07:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-12-20 04:07:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-12-20 04:07:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-12-20 04:07:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-12-20 04:07:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-12-20 04:07:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-12-20 04:07:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_init [2023-12-20 04:07:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_init [2023-12-20 04:07:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-12-20 04:07:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-12-20 04:07:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-20 04:07:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-20 04:07:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-20 04:07:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-12-20 04:07:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-12-20 04:07:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-12-20 04:07:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-12-20 04:07:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-12-20 04:07:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-12-20 04:07:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-12-20 04:07:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-12-20 04:07:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-12-20 04:07:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-12-20 04:07:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-12-20 04:07:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-12-20 04:07:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-12-20 04:07:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-12-20 04:07:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-12-20 04:07:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-12-20 04:07:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-12-20 04:07:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-20 04:07:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-20 04:07:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-20 04:07:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-12-20 04:07:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-12-20 04:07:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-12-20 04:07:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-12-20 04:07:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-12-20 04:07:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-12-20 04:07:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-12-20 04:07:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-12-20 04:07:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-12-20 04:07:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-12-20 04:07:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-12-20 04:07:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-12-20 04:07:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-12-20 04:07:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-12-20 04:07:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-12-20 04:07:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-12-20 04:07:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-12-20 04:07:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-12-20 04:07:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-12-20 04:07:33,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-12-20 04:07:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 04:07:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-20 04:07:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-20 04:07:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-20 04:07:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-20 04:07:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-20 04:07:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-20 04:07:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-20 04:07:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-20 04:07:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-20 04:07:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-20 04:07:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-20 04:07:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-20 04:07:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-20 04:07:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-20 04:07:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-20 04:07:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-20 04:07:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-20 04:07:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_destroy [2023-12-20 04:07:33,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_destroy [2023-12-20 04:07:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 04:07:33,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 04:07:33,479 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 04:07:33,481 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 04:07:37,978 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 04:07:38,018 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 04:07:38,018 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-20 04:07:38,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 04:07:38 BoogieIcfgContainer [2023-12-20 04:07:38,019 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 04:07:38,021 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 04:07:38,021 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 04:07:38,023 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 04:07:38,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 04:07:32" (1/3) ... [2023-12-20 04:07:38,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16659c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 04:07:38, skipping insertion in model container [2023-12-20 04:07:38,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:07:32" (2/3) ... [2023-12-20 04:07:38,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16659c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 04:07:38, skipping insertion in model container [2023-12-20 04:07:38,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 04:07:38" (3/3) ... [2023-12-20 04:07:38,025 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_time_var_mutex.i [2023-12-20 04:07:38,037 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 04:07:38,038 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 04:07:38,068 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 04:07:38,072 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;@1504cf02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 04:07:38,073 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 04:07:38,077 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 84 states have (on average 1.369047619047619) internal successors, (115), 85 states have internal predecessors, (115), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-20 04:07:38,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-20 04:07:38,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:07:38,092 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:07:38,092 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:07:38,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:07:38,096 INFO L85 PathProgramCache]: Analyzing trace with hash -702418532, now seen corresponding path program 1 times [2023-12-20 04:07:38,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:07:38,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273588502] [2023-12-20 04:07:38,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:07:38,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:07:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-20 04:07:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 04:07:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 04:07:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 04:07:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 04:07:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-20 04:07:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 04:07:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 04:07:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 04:07:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 04:07:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 04:07:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 04:07:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-20 04:07:38,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-20 04:07:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-20 04:07:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 04:07:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 04:07:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 04:07:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 04:07:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 04:07:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 04:07:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 04:07:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:38,738 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-20 04:07:38,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:07:38,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273588502] [2023-12-20 04:07:38,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273588502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:07:38,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:07:38,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 04:07:38,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995448685] [2023-12-20 04:07:38,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:07:38,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 04:07:38,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:07:38,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 04:07:38,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 04:07:38,770 INFO L87 Difference]: Start difference. First operand has 138 states, 84 states have (on average 1.369047619047619) internal successors, (115), 85 states have internal predecessors, (115), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-20 04:07:38,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:07:38,891 INFO L93 Difference]: Finished difference Result 278 states and 455 transitions. [2023-12-20 04:07:38,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 04:07:38,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 143 [2023-12-20 04:07:38,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:07:38,903 INFO L225 Difference]: With dead ends: 278 [2023-12-20 04:07:38,903 INFO L226 Difference]: Without dead ends: 139 [2023-12-20 04:07:38,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 04:07:38,910 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 3 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 04:07:38,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 383 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 04:07:38,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-12-20 04:07:38,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 137. [2023-12-20 04:07:38,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 84 states have internal predecessors, (110), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-20 04:07:38,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 200 transitions. [2023-12-20 04:07:38,962 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 200 transitions. Word has length 143 [2023-12-20 04:07:38,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:07:38,963 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 200 transitions. [2023-12-20 04:07:38,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-20 04:07:38,963 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 200 transitions. [2023-12-20 04:07:38,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-20 04:07:38,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:07:38,966 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:07:38,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 04:07:38,966 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:07:38,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:07:38,967 INFO L85 PathProgramCache]: Analyzing trace with hash -274563922, now seen corresponding path program 1 times [2023-12-20 04:07:38,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:07:38,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858757709] [2023-12-20 04:07:38,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:07:38,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:07:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:07:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:07:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 04:07:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 04:07:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-20 04:07:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 04:07:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 04:07:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-20 04:07:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-20 04:07:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-20 04:07:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-20 04:07:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-20 04:07:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 04:07:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 04:07:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-20 04:07:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-20 04:07:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 04:07:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-20 04:07:39,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-20 04:07:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-20 04:07:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-20 04:07:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-20 04:07:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,334 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-20 04:07:39,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:07:39,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858757709] [2023-12-20 04:07:39,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858757709] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:07:39,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:07:39,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 04:07:39,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115251556] [2023-12-20 04:07:39,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:07:39,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 04:07:39,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:07:39,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 04:07:39,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 04:07:39,342 INFO L87 Difference]: Start difference. First operand 137 states and 200 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-20 04:07:39,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:07:39,403 INFO L93 Difference]: Finished difference Result 273 states and 400 transitions. [2023-12-20 04:07:39,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 04:07:39,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 146 [2023-12-20 04:07:39,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:07:39,407 INFO L225 Difference]: With dead ends: 273 [2023-12-20 04:07:39,407 INFO L226 Difference]: Without dead ends: 138 [2023-12-20 04:07:39,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 04:07:39,408 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 0 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 04:07:39,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 384 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 04:07:39,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-12-20 04:07:39,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2023-12-20 04:07:39,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 85 states have (on average 1.3058823529411765) internal successors, (111), 85 states have internal predecessors, (111), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-20 04:07:39,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 201 transitions. [2023-12-20 04:07:39,420 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 201 transitions. Word has length 146 [2023-12-20 04:07:39,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:07:39,420 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 201 transitions. [2023-12-20 04:07:39,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-20 04:07:39,420 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 201 transitions. [2023-12-20 04:07:39,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-20 04:07:39,423 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:07:39,423 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:07:39,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 04:07:39,423 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:07:39,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:07:39,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1482572654, now seen corresponding path program 1 times [2023-12-20 04:07:39,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:07:39,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824592915] [2023-12-20 04:07:39,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:07:39,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:07:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 04:07:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 04:07:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 04:07:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 04:07:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 04:07:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-20 04:07:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-20 04:07:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-20 04:07:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-20 04:07:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-20 04:07:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 04:07:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 04:07:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 04:07:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-20 04:07:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-20 04:07:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-20 04:07:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-20 04:07:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-20 04:07:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-20 04:07:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 04:07:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-20 04:07:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-20 04:07:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:39,733 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-20 04:07:39,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:07:39,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824592915] [2023-12-20 04:07:39,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824592915] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:07:39,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724980532] [2023-12-20 04:07:39,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:07:39,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:07:39,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:07:39,736 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:07:39,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 04:07:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 04:07:40,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:07:40,285 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-20 04:07:40,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:07:40,360 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-20 04:07:40,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724980532] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:07:40,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:07:40,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-12-20 04:07:40,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636688015] [2023-12-20 04:07:40,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:07:40,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 04:07:40,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:07:40,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 04:07:40,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-20 04:07:40,365 INFO L87 Difference]: Start difference. First operand 138 states and 201 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-20 04:07:40,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:07:40,418 INFO L93 Difference]: Finished difference Result 276 states and 404 transitions. [2023-12-20 04:07:40,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 04:07:40,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 147 [2023-12-20 04:07:40,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:07:40,421 INFO L225 Difference]: With dead ends: 276 [2023-12-20 04:07:40,421 INFO L226 Difference]: Without dead ends: 140 [2023-12-20 04:07:40,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 335 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-20 04:07:40,422 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 0 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 04:07:40,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 575 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 04:07:40,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-20 04:07:40,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2023-12-20 04:07:40,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 87 states have (on average 1.2988505747126438) internal successors, (113), 87 states have internal predecessors, (113), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-20 04:07:40,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 203 transitions. [2023-12-20 04:07:40,430 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 203 transitions. Word has length 147 [2023-12-20 04:07:40,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:07:40,430 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 203 transitions. [2023-12-20 04:07:40,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-20 04:07:40,431 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 203 transitions. [2023-12-20 04:07:40,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-20 04:07:40,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:07:40,432 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:07:40,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 04:07:40,644 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 [2023-12-20 04:07:40,647 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:07:40,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:07:40,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1531359214, now seen corresponding path program 2 times [2023-12-20 04:07:40,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:07:40,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100598890] [2023-12-20 04:07:40,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:07:40,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:07:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 04:07:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 04:07:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 04:07:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 04:07:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-20 04:07:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 04:07:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 04:07:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 04:07:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 04:07:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 04:07:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 04:07:40,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-20 04:07:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-20 04:07:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-20 04:07:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 04:07:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 04:07:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 04:07:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 04:07:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 04:07:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 04:07:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 04:07:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 04:07:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:40,879 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2023-12-20 04:07:40,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:07:40,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100598890] [2023-12-20 04:07:40,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100598890] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:07:40,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220202351] [2023-12-20 04:07:40,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-20 04:07:40,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:07:40,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:07:40,880 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:07:40,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 04:07:41,249 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-20 04:07:41,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-20 04:07:41,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 04:07:41,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:07:41,347 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 [2023-12-20 04:07:41,521 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2023-12-20 04:07:41,522 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 04:07:41,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220202351] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:07:41,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 04:07:41,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 9 [2023-12-20 04:07:41,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370708734] [2023-12-20 04:07:41,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:07:41,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 04:07:41,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:07:41,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 04:07:41,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-20 04:07:41,525 INFO L87 Difference]: Start difference. First operand 140 states and 203 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-20 04:07:45,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:49,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:53,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:54,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:07:54,120 INFO L93 Difference]: Finished difference Result 516 states and 770 transitions. [2023-12-20 04:07:54,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 04:07:54,120 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 149 [2023-12-20 04:07:54,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:07:54,123 INFO L225 Difference]: With dead ends: 516 [2023-12-20 04:07:54,124 INFO L226 Difference]: Without dead ends: 295 [2023-12-20 04:07:54,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-20 04:07:54,125 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 386 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 89 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-12-20 04:07:54,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 1034 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 285 Invalid, 3 Unknown, 0 Unchecked, 12.5s Time] [2023-12-20 04:07:54,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2023-12-20 04:07:54,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2023-12-20 04:07:54,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 185 states have (on average 1.3567567567567567) internal successors, (251), 185 states have internal predecessors, (251), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (101), 88 states have call predecessors, (101), 88 states have call successors, (101) [2023-12-20 04:07:54,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 440 transitions. [2023-12-20 04:07:54,146 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 440 transitions. Word has length 149 [2023-12-20 04:07:54,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:07:54,146 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 440 transitions. [2023-12-20 04:07:54,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-20 04:07:54,146 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 440 transitions. [2023-12-20 04:07:54,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-12-20 04:07:54,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:07:54,149 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 7, 7, 7, 7, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:07:54,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 04:07:54,355 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 [2023-12-20 04:07:54,356 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:07:54,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:07:54,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1803685656, now seen corresponding path program 1 times [2023-12-20 04:07:54,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:07:54,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960801202] [2023-12-20 04:07:54,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:07:54,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:07:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 04:07:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 04:07:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-20 04:07:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 04:07:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 04:07:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 04:07:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 04:07:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 04:07:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-20 04:07:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 04:07:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 04:07:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 04:07:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-20 04:07:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 04:07:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:07:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-20 04:07:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-20 04:07:54,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-20 04:07:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-20 04:07:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 04:07:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 04:07:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-20 04:07:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-20 04:07:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-20 04:07:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-20 04:07:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-20 04:07:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 04:07:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 04:07:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 04:07:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-20 04:07:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-20 04:07:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-20 04:07:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 04:07:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 04:07:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:54,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1721 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2023-12-20 04:07:54,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:07:54,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960801202] [2023-12-20 04:07:54,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960801202] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:07:54,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689166808] [2023-12-20 04:07:54,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:07:54,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:07:54,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:07:54,836 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:07:54,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 04:07:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:55,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 1665 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 04:07:55,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:07:55,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1721 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2023-12-20 04:07:55,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:07:55,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1721 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2023-12-20 04:07:55,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689166808] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:07:55,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:07:55,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 4] total 10 [2023-12-20 04:07:55,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377056258] [2023-12-20 04:07:55,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:07:55,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 04:07:55,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:07:55,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 04:07:55,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-12-20 04:07:55,540 INFO L87 Difference]: Start difference. First operand 295 states and 440 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 6 states have internal predecessors, (110), 2 states have call successors, (83), 6 states have call predecessors, (83), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2023-12-20 04:07:59,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:03,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:04,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:08:04,267 INFO L93 Difference]: Finished difference Result 608 states and 905 transitions. [2023-12-20 04:08:04,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 04:08:04,268 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 6 states have internal predecessors, (110), 2 states have call successors, (83), 6 states have call predecessors, (83), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 253 [2023-12-20 04:08:04,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:08:04,270 INFO L225 Difference]: With dead ends: 608 [2023-12-20 04:08:04,270 INFO L226 Difference]: Without dead ends: 321 [2023-12-20 04:08:04,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 584 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-20 04:08:04,272 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 88 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 138 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-12-20 04:08:04,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 533 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 470 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2023-12-20 04:08:04,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-12-20 04:08:04,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 315. [2023-12-20 04:08:04,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 201 states have (on average 1.3383084577114428) internal successors, (269), 205 states have internal predecessors, (269), 88 states have call successors, (88), 21 states have call predecessors, (88), 25 states have return successors, (108), 88 states have call predecessors, (108), 88 states have call successors, (108) [2023-12-20 04:08:04,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 465 transitions. [2023-12-20 04:08:04,296 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 465 transitions. Word has length 253 [2023-12-20 04:08:04,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:08:04,296 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 465 transitions. [2023-12-20 04:08:04,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 6 states have internal predecessors, (110), 2 states have call successors, (83), 6 states have call predecessors, (83), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2023-12-20 04:08:04,296 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 465 transitions. [2023-12-20 04:08:04,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2023-12-20 04:08:04,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:08:04,299 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 9, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:08:04,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-20 04:08:04,507 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 [2023-12-20 04:08:04,508 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:08:04,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:08:04,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1137220012, now seen corresponding path program 2 times [2023-12-20 04:08:04,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:08:04,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621190770] [2023-12-20 04:08:04,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:08:04,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:08:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-20 04:08:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 04:08:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-20 04:08:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 04:08:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 04:08:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 04:08:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 04:08:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 04:08:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-20 04:08:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 04:08:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 04:08:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 04:08:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:08:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-20 04:08:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-20 04:08:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-20 04:08:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-20 04:08:05,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 04:08:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 04:08:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-20 04:08:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-20 04:08:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-20 04:08:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-20 04:08:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-20 04:08:05,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 04:08:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 04:08:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 04:08:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-20 04:08:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-20 04:08:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-20 04:08:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 04:08:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 04:08:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 04:08:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-20 04:08:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:05,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1789 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1789 trivial. 0 not checked. [2023-12-20 04:08:05,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:08:05,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621190770] [2023-12-20 04:08:05,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621190770] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:08:05,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:08:05,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 04:08:05,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224003887] [2023-12-20 04:08:05,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:08:05,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 04:08:05,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:08:05,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 04:08:05,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-20 04:08:05,449 INFO L87 Difference]: Start difference. First operand 315 states and 465 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (36), 5 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-20 04:08:09,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:13,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:17,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:22,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:26,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:27,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:08:27,651 INFO L93 Difference]: Finished difference Result 699 states and 1031 transitions. [2023-12-20 04:08:27,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 04:08:27,652 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (36), 5 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 265 [2023-12-20 04:08:27,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:08:27,655 INFO L225 Difference]: With dead ends: 699 [2023-12-20 04:08:27,655 INFO L226 Difference]: Without dead ends: 439 [2023-12-20 04:08:27,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-12-20 04:08:27,656 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 237 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 128 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2023-12-20 04:08:27,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 766 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 774 Invalid, 5 Unknown, 0 Unchecked, 21.9s Time] [2023-12-20 04:08:27,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-12-20 04:08:27,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 431. [2023-12-20 04:08:27,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 267 states have (on average 1.2883895131086143) internal successors, (344), 274 states have internal predecessors, (344), 129 states have call successors, (129), 28 states have call predecessors, (129), 34 states have return successors, (156), 128 states have call predecessors, (156), 129 states have call successors, (156) [2023-12-20 04:08:27,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 629 transitions. [2023-12-20 04:08:27,719 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 629 transitions. Word has length 265 [2023-12-20 04:08:27,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:08:27,719 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 629 transitions. [2023-12-20 04:08:27,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (36), 5 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-20 04:08:27,719 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 629 transitions. [2023-12-20 04:08:27,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2023-12-20 04:08:27,722 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:08:27,722 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 9, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:08:27,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 04:08:27,722 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:08:27,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:08:27,723 INFO L85 PathProgramCache]: Analyzing trace with hash -495154452, now seen corresponding path program 1 times [2023-12-20 04:08:27,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:08:27,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456143596] [2023-12-20 04:08:27,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:08:27,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:08:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:08:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 04:08:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-20 04:08:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 04:08:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 04:08:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 04:08:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:28,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 04:08:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 04:08:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-20 04:08:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 04:08:28,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 04:08:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 04:08:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:08:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-20 04:08:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-20 04:08:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-20 04:08:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-20 04:08:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 04:08:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 04:08:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-20 04:08:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-20 04:08:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-20 04:08:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-20 04:08:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-20 04:08:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 04:08:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 04:08:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 04:08:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-20 04:08:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-20 04:08:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-20 04:08:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 04:08:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 04:08:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 04:08:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-20 04:08:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:28,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1789 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1786 trivial. 0 not checked. [2023-12-20 04:08:28,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:08:28,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456143596] [2023-12-20 04:08:28,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456143596] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:08:28,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824543417] [2023-12-20 04:08:28,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:08:28,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:08:28,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:08:28,728 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:08:28,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 04:08:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:29,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 1971 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-20 04:08:29,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:08:29,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-20 04:08:29,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1789 backedges. 632 proven. 12 refuted. 0 times theorem prover too weak. 1145 trivial. 0 not checked. [2023-12-20 04:08:29,881 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:08:30,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1789 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 1761 trivial. 0 not checked. [2023-12-20 04:08:30,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824543417] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:08:30,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:08:30,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 10] total 32 [2023-12-20 04:08:30,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546810554] [2023-12-20 04:08:30,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:08:30,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-20 04:08:30,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:08:30,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-20 04:08:30,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=813, Unknown=0, NotChecked=0, Total=992 [2023-12-20 04:08:30,469 INFO L87 Difference]: Start difference. First operand 431 states and 629 transitions. Second operand has 32 states, 29 states have (on average 4.896551724137931) internal successors, (142), 26 states have internal predecessors, (142), 20 states have call successors, (87), 13 states have call predecessors, (87), 12 states have return successors, (87), 16 states have call predecessors, (87), 20 states have call successors, (87) [2023-12-20 04:08:34,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:38,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:42,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:46,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:50,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:54,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:58,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:04,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:09:04,644 INFO L93 Difference]: Finished difference Result 1142 states and 1654 transitions. [2023-12-20 04:09:04,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-20 04:09:04,645 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 4.896551724137931) internal successors, (142), 26 states have internal predecessors, (142), 20 states have call successors, (87), 13 states have call predecessors, (87), 12 states have return successors, (87), 16 states have call predecessors, (87), 20 states have call successors, (87) Word has length 265 [2023-12-20 04:09:04,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:09:04,661 INFO L225 Difference]: With dead ends: 1142 [2023-12-20 04:09:04,661 INFO L226 Difference]: Without dead ends: 730 [2023-12-20 04:09:04,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 696 GetRequests, 613 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2035 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1401, Invalid=5571, Unknown=0, NotChecked=0, Total=6972 [2023-12-20 04:09:04,664 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1522 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 2947 mSolverCounterSat, 1375 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1564 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 4329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1375 IncrementalHoareTripleChecker+Valid, 2947 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.1s IncrementalHoareTripleChecker+Time [2023-12-20 04:09:04,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1564 Valid, 1012 Invalid, 4329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1375 Valid, 2947 Invalid, 7 Unknown, 0 Unchecked, 31.1s Time] [2023-12-20 04:09:04,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-20 04:09:04,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 603. [2023-12-20 04:09:04,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 378 states have (on average 1.2857142857142858) internal successors, (486), 388 states have internal predecessors, (486), 159 states have call successors, (159), 62 states have call predecessors, (159), 65 states have return successors, (205), 152 states have call predecessors, (205), 159 states have call successors, (205) [2023-12-20 04:09:04,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 850 transitions. [2023-12-20 04:09:04,708 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 850 transitions. Word has length 265 [2023-12-20 04:09:04,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:09:04,708 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 850 transitions. [2023-12-20 04:09:04,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 4.896551724137931) internal successors, (142), 26 states have internal predecessors, (142), 20 states have call successors, (87), 13 states have call predecessors, (87), 12 states have return successors, (87), 16 states have call predecessors, (87), 20 states have call successors, (87) [2023-12-20 04:09:04,709 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 850 transitions. [2023-12-20 04:09:04,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2023-12-20 04:09:04,712 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:09:04,712 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 9, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:09:04,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-20 04:09:04,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:09:04,921 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:09:04,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:09:04,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1977667054, now seen corresponding path program 1 times [2023-12-20 04:09:04,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:09:04,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047358188] [2023-12-20 04:09:04,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:09:04,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:09:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:06,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:09:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:06,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:09:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:06,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:09:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:06,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 04:09:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:06,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:09:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:06,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-20 04:09:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:06,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 04:09:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:06,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:09:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:06,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 04:09:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:06,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 04:09:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:06,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:09:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:06,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 04:09:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 04:09:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:09:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-20 04:09:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 04:09:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:09:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 04:09:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 04:09:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:09:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:09:07,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-20 04:09:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-20 04:09:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-20 04:09:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-20 04:09:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 04:09:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 04:09:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-20 04:09:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-20 04:09:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-20 04:09:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-20 04:09:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-20 04:09:07,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 04:09:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 04:09:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 04:09:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-20 04:09:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-20 04:09:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-20 04:09:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 04:09:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 04:09:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 04:09:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-20 04:09:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1789 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1786 trivial. 0 not checked. [2023-12-20 04:09:07,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:09:07,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047358188] [2023-12-20 04:09:07,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047358188] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:09:07,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902436590] [2023-12-20 04:09:07,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:09:07,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:09:07,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:09:07,306 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:09:07,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 04:09:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:07,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 2057 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-20 04:09:08,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:09:08,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-20 04:09:21,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:09:21,199 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:09:21,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 48 [2023-12-20 04:09:23,254 INFO L349 Elim1Store]: treesize reduction 64, result has 54.9 percent of original size [2023-12-20 04:09:23,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 104 [2023-12-20 04:09:46,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1789 backedges. 728 proven. 4 refuted. 0 times theorem prover too weak. 1057 trivial. 0 not checked. [2023-12-20 04:09:46,024 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:09:46,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-12-20 04:09:46,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2023-12-20 04:09:46,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-12-20 04:09:46,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-12-20 04:09:46,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-12-20 04:09:46,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-12-20 04:09:46,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1789 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1785 trivial. 0 not checked. [2023-12-20 04:09:46,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902436590] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:09:46,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:09:46,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 9] total 39 [2023-12-20 04:09:46,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883750069] [2023-12-20 04:09:46,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:09:46,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-20 04:09:46,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:09:46,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-20 04:09:46,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1335, Unknown=6, NotChecked=0, Total=1482 [2023-12-20 04:09:46,720 INFO L87 Difference]: Start difference. First operand 603 states and 850 transitions. Second operand has 39 states, 36 states have (on average 4.388888888888889) internal successors, (158), 35 states have internal predecessors, (158), 19 states have call successors, (87), 13 states have call predecessors, (87), 14 states have return successors, (87), 17 states have call predecessors, (87), 19 states have call successors, (87) [2023-12-20 04:09:50,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:55,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:56,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:58,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:02,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:06,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:10,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:14,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:18,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:22,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:26,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:30,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:34,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:38,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:42,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:46,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:50,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:10:54,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:58,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:00,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:04,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:08,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:11:12,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:16,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:20,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:24,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:28,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:34,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:11:34,813 INFO L93 Difference]: Finished difference Result 1256 states and 1842 transitions. [2023-12-20 04:11:34,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-20 04:11:34,813 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 36 states have (on average 4.388888888888889) internal successors, (158), 35 states have internal predecessors, (158), 19 states have call successors, (87), 13 states have call predecessors, (87), 14 states have return successors, (87), 17 states have call predecessors, (87), 19 states have call successors, (87) Word has length 265 [2023-12-20 04:11:34,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:11:34,817 INFO L225 Difference]: With dead ends: 1256 [2023-12-20 04:11:34,817 INFO L226 Difference]: Without dead ends: 726 [2023-12-20 04:11:34,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 668 GetRequests, 587 SyntacticMatches, 7 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1208 ImplicationChecksByTransitivity, 40.5s TimeCoverageRelationStatistics Valid=900, Invalid=4794, Unknown=6, NotChecked=0, Total=5700 [2023-12-20 04:11:34,820 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1043 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 4172 mSolverCounterSat, 1165 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 5359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1165 IncrementalHoareTripleChecker+Valid, 4172 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 104.9s IncrementalHoareTripleChecker+Time [2023-12-20 04:11:34,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 1940 Invalid, 5359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1165 Valid, 4172 Invalid, 22 Unknown, 0 Unchecked, 104.9s Time] [2023-12-20 04:11:34,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2023-12-20 04:11:34,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 675. [2023-12-20 04:11:34,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 417 states have (on average 1.2829736211031175) internal successors, (535), 428 states have internal predecessors, (535), 185 states have call successors, (185), 66 states have call predecessors, (185), 72 states have return successors, (263), 180 states have call predecessors, (263), 185 states have call successors, (263) [2023-12-20 04:11:34,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 983 transitions. [2023-12-20 04:11:34,908 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 983 transitions. Word has length 265 [2023-12-20 04:11:34,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:11:34,909 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 983 transitions. [2023-12-20 04:11:34,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 36 states have (on average 4.388888888888889) internal successors, (158), 35 states have internal predecessors, (158), 19 states have call successors, (87), 13 states have call predecessors, (87), 14 states have return successors, (87), 17 states have call predecessors, (87), 19 states have call successors, (87) [2023-12-20 04:11:34,910 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 983 transitions. [2023-12-20 04:11:34,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-12-20 04:11:34,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:11:34,914 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 9, 8, 8, 8, 8, 3, 3, 3, 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] [2023-12-20 04:11:34,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 04:11:35,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:11:35,124 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:11:35,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:11:35,124 INFO L85 PathProgramCache]: Analyzing trace with hash -12791171, now seen corresponding path program 1 times [2023-12-20 04:11:35,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:11:35,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889791219] [2023-12-20 04:11:35,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:11:35,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:11:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:11:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 04:11:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:35,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-20 04:11:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 04:11:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 04:11:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 04:11:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 04:11:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 04:11:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-20 04:11:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 04:11:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 04:11:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-20 04:11:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:11:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 04:11:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-20 04:11:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-20 04:11:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-20 04:11:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-20 04:11:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-20 04:11:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-20 04:11:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-20 04:11:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-20 04:11:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-20 04:11:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-20 04:11:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-20 04:11:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 04:11:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-20 04:11:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-20 04:11:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-20 04:11:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 04:11:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-20 04:11:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 04:11:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-20 04:11:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-20 04:11:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-20 04:11:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:35,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1938 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1936 trivial. 0 not checked. [2023-12-20 04:11:35,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:11:35,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889791219] [2023-12-20 04:11:35,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889791219] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:11:35,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772017219] [2023-12-20 04:11:35,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:11:35,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:11:35,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:11:35,630 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:11:35,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-20 04:11:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:36,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 2222 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 04:11:36,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:11:36,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1938 backedges. 627 proven. 0 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2023-12-20 04:11:36,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 04:11:36,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772017219] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:11:36,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 04:11:36,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2023-12-20 04:11:36,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163830589] [2023-12-20 04:11:36,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:11:36,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 04:11:36,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:11:36,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 04:11:36,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-20 04:11:36,394 INFO L87 Difference]: Start difference. First operand 675 states and 983 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-20 04:11:36,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:11:36,504 INFO L93 Difference]: Finished difference Result 1246 states and 1892 transitions. [2023-12-20 04:11:36,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 04:11:36,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 284 [2023-12-20 04:11:36,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:11:36,508 INFO L225 Difference]: With dead ends: 1246 [2023-12-20 04:11:36,508 INFO L226 Difference]: Without dead ends: 681 [2023-12-20 04:11:36,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-20 04:11:36,511 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 0 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 04:11:36,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 376 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 04:11:36,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2023-12-20 04:11:36,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 679. [2023-12-20 04:11:36,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 421 states have (on average 1.2802850356294537) internal successors, (539), 432 states have internal predecessors, (539), 185 states have call successors, (185), 66 states have call predecessors, (185), 72 states have return successors, (263), 180 states have call predecessors, (263), 185 states have call successors, (263) [2023-12-20 04:11:36,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 987 transitions. [2023-12-20 04:11:36,591 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 987 transitions. Word has length 284 [2023-12-20 04:11:36,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:11:36,592 INFO L495 AbstractCegarLoop]: Abstraction has 679 states and 987 transitions. [2023-12-20 04:11:36,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-20 04:11:36,593 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 987 transitions. [2023-12-20 04:11:36,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-12-20 04:11:36,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:11:36,596 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 9, 8, 8, 8, 8, 3, 3, 3, 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] [2023-12-20 04:11:36,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-20 04:11:36,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:11:36,806 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:11:36,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:11:36,806 INFO L85 PathProgramCache]: Analyzing trace with hash 6749951, now seen corresponding path program 1 times [2023-12-20 04:11:36,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:11:36,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741106609] [2023-12-20 04:11:36,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:11:36,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:11:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:11:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 04:11:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-20 04:11:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 04:11:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 04:11:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 04:11:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 04:11:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 04:11:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-20 04:11:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 04:11:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 04:11:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-20 04:11:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:11:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 04:11:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-20 04:11:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-20 04:11:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-20 04:11:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-20 04:11:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-20 04:11:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-20 04:11:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-20 04:11:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-20 04:11:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-20 04:11:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-20 04:11:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-20 04:11:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 04:11:38,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-20 04:11:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-20 04:11:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-20 04:11:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 04:11:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-20 04:11:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 04:11:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-20 04:11:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-20 04:11:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-20 04:11:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:38,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1938 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 1913 trivial. 0 not checked. [2023-12-20 04:11:38,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:11:38,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741106609] [2023-12-20 04:11:38,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741106609] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:11:38,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:11:38,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-20 04:11:38,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914877640] [2023-12-20 04:11:38,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:11:38,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 04:11:38,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:11:38,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 04:11:38,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-12-20 04:11:38,663 INFO L87 Difference]: Start difference. First operand 679 states and 987 transitions. Second operand has 13 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (39), 5 states have call predecessors, (39), 3 states have return successors, (39), 6 states have call predecessors, (39), 5 states have call successors, (39) [2023-12-20 04:11:42,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:46,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:48,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:11:48,782 INFO L93 Difference]: Finished difference Result 1592 states and 2348 transitions. [2023-12-20 04:11:48,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 04:11:48,782 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (39), 5 states have call predecessors, (39), 3 states have return successors, (39), 6 states have call predecessors, (39), 5 states have call successors, (39) Word has length 284 [2023-12-20 04:11:48,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:11:48,787 INFO L225 Difference]: With dead ends: 1592 [2023-12-20 04:11:48,787 INFO L226 Difference]: Without dead ends: 979 [2023-12-20 04:11:48,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=219, Invalid=483, Unknown=0, NotChecked=0, Total=702 [2023-12-20 04:11:48,790 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 345 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 205 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2023-12-20 04:11:48,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 597 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 1227 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2023-12-20 04:11:48,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2023-12-20 04:11:48,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 771. [2023-12-20 04:11:48,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 482 states have (on average 1.2344398340248963) internal successors, (595), 483 states have internal predecessors, (595), 206 states have call successors, (206), 66 states have call predecessors, (206), 82 states have return successors, (314), 221 states have call predecessors, (314), 206 states have call successors, (314) [2023-12-20 04:11:48,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1115 transitions. [2023-12-20 04:11:48,880 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1115 transitions. Word has length 284 [2023-12-20 04:11:48,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:11:48,881 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 1115 transitions. [2023-12-20 04:11:48,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (39), 5 states have call predecessors, (39), 3 states have return successors, (39), 6 states have call predecessors, (39), 5 states have call successors, (39) [2023-12-20 04:11:48,881 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1115 transitions. [2023-12-20 04:11:48,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-12-20 04:11:48,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:11:48,885 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 9, 8, 8, 8, 8, 3, 3, 3, 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] [2023-12-20 04:11:48,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 04:11:48,885 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:11:48,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:11:48,885 INFO L85 PathProgramCache]: Analyzing trace with hash -2129133251, now seen corresponding path program 1 times [2023-12-20 04:11:48,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:11:48,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409163512] [2023-12-20 04:11:48,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:11:48,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:11:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:50,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:11:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 04:11:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-20 04:11:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 04:11:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 04:11:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 04:11:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 04:11:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 04:11:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-20 04:11:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 04:11:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 04:11:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-20 04:11:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:11:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 04:11:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-20 04:11:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-20 04:11:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-20 04:11:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-20 04:11:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-20 04:11:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-20 04:11:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-20 04:11:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-20 04:11:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-20 04:11:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-20 04:11:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-20 04:11:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 04:11:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-20 04:11:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-20 04:11:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-20 04:11:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 04:11:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-20 04:11:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 04:11:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-20 04:11:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-20 04:11:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-20 04:11:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:51,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1938 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1931 trivial. 0 not checked. [2023-12-20 04:11:51,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:11:51,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409163512] [2023-12-20 04:11:51,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409163512] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:11:51,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673374207] [2023-12-20 04:11:51,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:11:51,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:11:51,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:11:51,361 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:11:51,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-20 04:11:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:54,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 2214 conjuncts, 63 conjunts are in the unsatisfiable core [2023-12-20 04:11:54,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:11:54,850 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 15 treesize of output 11 [2023-12-20 04:11:55,607 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 9 treesize of output 3 [2023-12-20 04:11:55,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1938 backedges. 796 proven. 61 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2023-12-20 04:11:55,653 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:11:56,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-12-20 04:11:56,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-12-20 04:11:57,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-12-20 04:11:57,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-12-20 04:11:57,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-12-20 04:11:57,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-12-20 04:11:57,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1938 backedges. 40 proven. 21 refuted. 0 times theorem prover too weak. 1877 trivial. 0 not checked. [2023-12-20 04:11:57,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673374207] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:11:57,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:11:57,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 27, 21] total 59 [2023-12-20 04:11:57,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874524735] [2023-12-20 04:11:57,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:11:57,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-12-20 04:11:57,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:11:57,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-12-20 04:11:57,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=3035, Unknown=0, NotChecked=0, Total=3422 [2023-12-20 04:11:57,706 INFO L87 Difference]: Start difference. First operand 771 states and 1115 transitions. Second operand has 59 states, 51 states have (on average 3.588235294117647) internal successors, (183), 53 states have internal predecessors, (183), 31 states have call successors, (95), 19 states have call predecessors, (95), 23 states have return successors, (95), 29 states have call predecessors, (95), 31 states have call successors, (95) [2023-12-20 04:12:02,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:06,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:10,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:14,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:18,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:22,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:26,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:30,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:34,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:38,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:42,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:46,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:50,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:54,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:58,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:13:02,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:13:06,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:13:10,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:13:12,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:13:16,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:13:20,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:13:24,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:13:28,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:13:32,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:13:36,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:13:40,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:13:44,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:13:48,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:13:52,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:13:56,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:14:00,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:14:04,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:14:08,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:14:12,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:14:16,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:14:20,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:14:24,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:14:28,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:14:32,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:14:36,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:14:40,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:14:44,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:15:25,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:15:25,428 INFO L93 Difference]: Finished difference Result 3473 states and 4935 transitions. [2023-12-20 04:15:25,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 235 states. [2023-12-20 04:15:25,428 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 51 states have (on average 3.588235294117647) internal successors, (183), 53 states have internal predecessors, (183), 31 states have call successors, (95), 19 states have call predecessors, (95), 23 states have return successors, (95), 29 states have call predecessors, (95), 31 states have call successors, (95) Word has length 284 [2023-12-20 04:15:25,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:15:25,438 INFO L225 Difference]: With dead ends: 3473 [2023-12-20 04:15:25,438 INFO L226 Difference]: Without dead ends: 2752 [2023-12-20 04:15:25,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 954 GetRequests, 663 SyntacticMatches, 1 SemanticMatches, 290 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32601 ImplicationChecksByTransitivity, 22.3s TimeCoverageRelationStatistics Valid=9980, Invalid=74992, Unknown=0, NotChecked=0, Total=84972 [2023-12-20 04:15:25,452 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 7037 mSDsluCounter, 6155 mSDsCounter, 0 mSdLazyCounter, 19495 mSolverCounterSat, 8790 mSolverCounterUnsat, 41 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 183.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7037 SdHoareTripleChecker+Valid, 6640 SdHoareTripleChecker+Invalid, 28326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8790 IncrementalHoareTripleChecker+Valid, 19495 IncrementalHoareTripleChecker+Invalid, 41 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 185.4s IncrementalHoareTripleChecker+Time [2023-12-20 04:15:25,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7037 Valid, 6640 Invalid, 28326 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8790 Valid, 19495 Invalid, 41 Unknown, 0 Unchecked, 185.4s Time] [2023-12-20 04:15:25,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2023-12-20 04:15:25,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 1362. [2023-12-20 04:15:25,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 852 states have (on average 1.1842723004694835) internal successors, (1009), 842 states have internal predecessors, (1009), 339 states have call successors, (339), 128 states have call predecessors, (339), 170 states have return successors, (462), 391 states have call predecessors, (462), 339 states have call successors, (462) [2023-12-20 04:15:25,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1810 transitions. [2023-12-20 04:15:25,689 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1810 transitions. Word has length 284 [2023-12-20 04:15:25,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:15:25,690 INFO L495 AbstractCegarLoop]: Abstraction has 1362 states and 1810 transitions. [2023-12-20 04:15:25,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 51 states have (on average 3.588235294117647) internal successors, (183), 53 states have internal predecessors, (183), 31 states have call successors, (95), 19 states have call predecessors, (95), 23 states have return successors, (95), 29 states have call predecessors, (95), 31 states have call successors, (95) [2023-12-20 04:15:25,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1810 transitions. [2023-12-20 04:15:25,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2023-12-20 04:15:25,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:15:25,695 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-20 04:15:25,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-20 04:15:25,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:15:25,907 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:15:25,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:15:25,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1199568243, now seen corresponding path program 1 times [2023-12-20 04:15:25,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:15:25,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797230659] [2023-12-20 04:15:25,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:15:25,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:15:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:39,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:15:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:43,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:15:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:43,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:15:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:43,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 04:15:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:43,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:15:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:43,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-20 04:15:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:43,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 04:15:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:43,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:15:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:43,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 04:15:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:43,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-20 04:15:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:43,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:15:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:43,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 04:15:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:43,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 04:15:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:43,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:15:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:43,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-20 04:15:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:44,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 04:15:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:44,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:15:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:44,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 04:15:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-20 04:15:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:15:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:15:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:15:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:15:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-20 04:15:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:15:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:15:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-20 04:15:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-20 04:15:45,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-20 04:15:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-20 04:15:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-20 04:15:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-20 04:15:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-20 04:15:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-20 04:15:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 04:15:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-20 04:15:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-20 04:15:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 04:15:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-20 04:15:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 04:15:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-20 04:15:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-20 04:15:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-20 04:15:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-20 04:15:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-20 04:15:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-20 04:15:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-20 04:15:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2023-12-20 04:15:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:15:45,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 102 proven. 276 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2023-12-20 04:15:45,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:15:45,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797230659] [2023-12-20 04:15:45,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797230659] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:15:45,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806013990] [2023-12-20 04:15:45,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:15:45,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:15:45,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:15:45,559 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:15:45,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-20 04:16:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:16:03,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 2362 conjuncts, 234 conjunts are in the unsatisfiable core [2023-12-20 04:16:03,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:16:03,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-12-20 04:16:04,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-20 04:16:04,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 34 [2023-12-20 04:16:04,449 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:16:04,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 22 [2023-12-20 04:16:04,465 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:16:04,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2023-12-20 04:16:04,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-20 04:16:06,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-20 04:16:06,393 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 17 treesize of output 13 [2023-12-20 04:16:06,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-20 04:16:07,913 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-20 04:16:07,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 26 [2023-12-20 04:16:07,922 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 18 treesize of output 16 [2023-12-20 04:16:07,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2023-12-20 04:16:08,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-20 04:16:08,581 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2023-12-20 04:16:08,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 132 treesize of output 120 [2023-12-20 04:16:08,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-12-20 04:16:09,304 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 69 treesize of output 64 [2023-12-20 04:16:09,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:16:09,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:16:09,340 INFO L349 Elim1Store]: treesize reduction 23, result has 47.7 percent of original size [2023-12-20 04:16:09,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 72 [2023-12-20 04:16:09,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:16:09,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 23 [2023-12-20 04:16:12,163 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-20 04:16:12,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 152 treesize of output 112 [2023-12-20 04:16:13,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:16:13,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2023-12-20 04:16:13,064 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 63 treesize of output 58 [2023-12-20 04:16:13,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:16:13,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:16:13,088 INFO L349 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2023-12-20 04:16:13,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 68 [2023-12-20 04:16:17,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:16:17,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2023-12-20 04:16:17,492 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 63 treesize of output 58 [2023-12-20 04:16:17,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:16:17,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:16:17,517 INFO L349 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2023-12-20 04:16:17,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 68 [2023-12-20 04:16:27,651 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 80 treesize of output 69 [2023-12-20 04:16:27,843 INFO L349 Elim1Store]: treesize reduction 70, result has 45.7 percent of original size [2023-12-20 04:16:27,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 120 [2023-12-20 04:16:32,109 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:16:32,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2023-12-20 04:17:06,256 WARN L293 SmtUtils]: Spent 26.60s on a formula simplification. DAG size of input: 2631 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-20 04:17:06,256 INFO L349 Elim1Store]: treesize reduction 5134, result has 0.0 percent of original size [2023-12-20 04:17:06,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 40 select indices, 40 select index equivalence classes, 6 disjoint index pairs (out of 780 index pairs), introduced 40 new quantified variables, introduced 780 case distinctions, treesize of input 1083 treesize of output 1175 [2023-12-20 04:18:35,735 WARN L293 SmtUtils]: Spent 1.41m on a formula simplification that was a NOOP. DAG size: 2631 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-20 04:18:35,737 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:18:35,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 41 select indices, 41 select index equivalence classes, 6 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 820 case distinctions, treesize of input 1079 treesize of output 5857 [2023-12-20 04:18:38,128 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:18:38,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 815 treesize of output 747 Received shutdown request... [2023-12-20 04:21:33,839 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-20 04:21:33,839 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-20 04:21:34,100 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 04:21:34,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-20 04:21:34,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-20 04:21:34,320 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 301 with TraceHistMax 31,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-1 term,while PolyPacSimplificationTermWalker was simplifying 12 xjuncts wrt. a ∧-662-16-2-4-1 context. [2023-12-20 04:21:34,323 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:21:34,325 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 04:21:34,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 04:21:34 BoogieIcfgContainer [2023-12-20 04:21:34,326 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 04:21:34,326 INFO L158 Benchmark]: Toolchain (without parser) took 841776.80ms. Allocated memory was 306.2MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 254.7MB in the beginning and 1.1GB in the end (delta: -816.2MB). Peak memory consumption was 927.5MB. Max. memory is 8.0GB. [2023-12-20 04:21:34,326 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 229.6MB. Free memory is still 179.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 04:21:34,327 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.22ms. Allocated memory is still 306.2MB. Free memory was 254.5MB in the beginning and 226.4MB in the end (delta: 28.1MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-20 04:21:34,327 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.73ms. Allocated memory is still 306.2MB. Free memory was 226.4MB in the beginning and 221.1MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-20 04:21:34,327 INFO L158 Benchmark]: Boogie Preprocessor took 140.16ms. Allocated memory is still 306.2MB. Free memory was 221.1MB in the beginning and 265.0MB in the end (delta: -43.9MB). Peak memory consumption was 7.0MB. Max. memory is 8.0GB. [2023-12-20 04:21:34,328 INFO L158 Benchmark]: RCFGBuilder took 4821.86ms. Allocated memory is still 306.2MB. Free memory was 265.0MB in the beginning and 203.2MB in the end (delta: 61.9MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. [2023-12-20 04:21:34,328 INFO L158 Benchmark]: TraceAbstraction took 836305.47ms. Allocated memory was 306.2MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 202.1MB in the beginning and 1.1GB in the end (delta: -868.8MB). Peak memory consumption was 874.4MB. Max. memory is 8.0GB. [2023-12-20 04:21:34,329 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 229.6MB. Free memory is still 179.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 444.22ms. Allocated memory is still 306.2MB. Free memory was 254.5MB in the beginning and 226.4MB in the end (delta: 28.1MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.73ms. Allocated memory is still 306.2MB. Free memory was 226.4MB in the beginning and 221.1MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 140.16ms. Allocated memory is still 306.2MB. Free memory was 221.1MB in the beginning and 265.0MB in the end (delta: -43.9MB). Peak memory consumption was 7.0MB. Max. memory is 8.0GB. * RCFGBuilder took 4821.86ms. Allocated memory is still 306.2MB. Free memory was 265.0MB in the beginning and 203.2MB in the end (delta: 61.9MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. * TraceAbstraction took 836305.47ms. Allocated memory was 306.2MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 202.1MB in the beginning and 1.1GB in the end (delta: -868.8MB). Peak memory consumption was 874.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 542]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 542). Cancelled while NwaCegarLoop was analyzing trace of length 301 with TraceHistMax 31,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-1 term,while PolyPacSimplificationTermWalker was simplifying 12 xjuncts wrt. a ∧-662-16-2-4-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 138 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 836.3s, OverallIterations: 12, TraceHistogramMax: 31, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 404.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 82 mSolverCounterUnknown, 10797 SdHoareTripleChecker+Valid, 374.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10661 mSDsluCounter, 14240 SdHoareTripleChecker+Invalid, 369.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11861 mSDsCounter, 11890 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29440 IncrementalHoareTripleChecker+Invalid, 41412 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11890 mSolverCounterUnsat, 2379 mSDtfsCounter, 29440 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4164 GetRequests, 3638 SyntacticMatches, 11 SemanticMatches, 515 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36014 ImplicationChecksByTransitivity, 67.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1362occurred in iteration=11, InterpolantAutomatonStates: 394, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 1794 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 4.6s SatisfiabilityAnalysisTime, 52.5s InterpolantComputationTime, 4132 NumberOfCodeBlocks, 4000 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 5323 ConstructedInterpolants, 33 QuantifiedInterpolants, 15554 SizeOfPredicates, 42 NumberOfNonLiveVariables, 11775 ConjunctsInSsa, 161 ConjunctsInUnsatCore, 23 InterpolantComputations, 6 PerfectInterpolantSequences, 35668/35803 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