/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_fib-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 03:58:25,801 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 03:58:25,866 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 03:58:25,873 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 03:58:25,873 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 03:58:25,899 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 03:58:25,900 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 03:58:25,900 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 03:58:25,900 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 03:58:25,903 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 03:58:25,903 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 03:58:25,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 03:58:25,904 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 03:58:25,905 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 03:58:25,905 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 03:58:25,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 03:58:25,905 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 03:58:25,906 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 03:58:25,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 03:58:25,907 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 03:58:25,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 03:58:25,907 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 03:58:25,907 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 03:58:25,907 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 03:58:25,907 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 03:58:25,908 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 03:58:25,908 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 03:58:25,908 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 03:58:25,908 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 03:58:25,908 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 03:58:25,909 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 03:58:25,909 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 03:58:25,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:58:25,910 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 03:58:25,910 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 03:58:25,910 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 03:58:25,910 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 03:58:25,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 03:58:25,910 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 03:58:25,910 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 03:58:25,910 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 03:58:25,910 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 03:58:25,911 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 03:58:25,911 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 03:58:26,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 03:58:26,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 03:58:26,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 03:58:26,150 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 03:58:26,150 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 03:58:26,151 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_fib-2.i [2023-12-20 03:58:27,218 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 03:58:27,452 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 03:58:27,453 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_fib-2.i [2023-12-20 03:58:27,464 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e6dd25f8/7ee64db45b304416b57c30e0d9cecfa3/FLAGf46d8436c [2023-12-20 03:58:27,474 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e6dd25f8/7ee64db45b304416b57c30e0d9cecfa3 [2023-12-20 03:58:27,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 03:58:27,477 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 03:58:27,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 03:58:27,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 03:58:27,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 03:58:27,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:58:27" (1/1) ... [2023-12-20 03:58:27,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60e58cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:27, skipping insertion in model container [2023-12-20 03:58:27,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:58:27" (1/1) ... [2023-12-20 03:58:27,535 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 03:58:27,771 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_fib-2.i[23457,23470] [2023-12-20 03:58:27,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:58:27,916 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 03:58:27,952 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_fib-2.i[23457,23470] [2023-12-20 03:58:28,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:58:28,050 INFO L206 MainTranslator]: Completed translation [2023-12-20 03:58:28,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:28 WrapperNode [2023-12-20 03:58:28,051 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 03:58:28,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 03:58:28,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 03:58:28,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 03:58:28,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:28" (1/1) ... [2023-12-20 03:58:28,076 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:28" (1/1) ... [2023-12-20 03:58:28,112 INFO L138 Inliner]: procedures = 144, calls = 356, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 676 [2023-12-20 03:58:28,113 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 03:58:28,113 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 03:58:28,113 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 03:58:28,114 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 03:58:28,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:28" (1/1) ... [2023-12-20 03:58:28,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:28" (1/1) ... [2023-12-20 03:58:28,129 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:28" (1/1) ... [2023-12-20 03:58:28,171 INFO L175 MemorySlicer]: Split 225 memory accesses to 14 slices as follows [2, 8, 8, 36, 31, 22, 22, 10, 11, 2, 0, 31, 11, 31]. 16 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [2, 3, 3, 0, 0, 6, 6, 6, 0, 0, 0, 0, 0, 0]. The 63 writes are split as follows [0, 2, 2, 21, 16, 7, 7, 2, 1, 2, 0, 1, 1, 1]. [2023-12-20 03:58:28,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:28" (1/1) ... [2023-12-20 03:58:28,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:28" (1/1) ... [2023-12-20 03:58:28,199 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:28" (1/1) ... [2023-12-20 03:58:28,202 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:28" (1/1) ... [2023-12-20 03:58:28,207 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:28" (1/1) ... [2023-12-20 03:58:28,210 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:28" (1/1) ... [2023-12-20 03:58:28,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 03:58:28,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 03:58:28,218 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 03:58:28,218 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 03:58:28,219 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:28" (1/1) ... [2023-12-20 03:58:28,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:58:28,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:58:28,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-20 03:58:28,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-20 03:58:28,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-20 03:58:28,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-20 03:58:28,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-20 03:58:28,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-20 03:58:28,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-20 03:58:28,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-20 03:58:28,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-20 03:58:28,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-20 03:58:28,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-20 03:58:28,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-20 03:58:28,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-20 03:58:28,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-20 03:58:28,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-20 03:58:28,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-20 03:58:28,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-20 03:58:28,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-20 03:58:28,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-20 03:58:28,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-20 03:58:28,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-20 03:58:28,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-20 03:58:28,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-20 03:58:28,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-20 03:58:28,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-20 03:58:28,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-20 03:58:28,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-20 03:58:28,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-20 03:58:28,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-20 03:58:28,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-20 03:58:28,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-20 03:58:28,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-20 03:58:28,281 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 03:58:28,281 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 03:58:28,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 03:58:28,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-20 03:58:28,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-20 03:58:28,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-20 03:58:28,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-20 03:58:28,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-12-20 03:58:28,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-12-20 03:58:28,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-12-20 03:58:28,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-12-20 03:58:28,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-12-20 03:58:28,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-12-20 03:58:28,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-12-20 03:58:28,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-12-20 03:58:28,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-12-20 03:58:28,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-12-20 03:58:28,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-12-20 03:58:28,282 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-12-20 03:58:28,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-12-20 03:58:28,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-20 03:58:28,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-20 03:58:28,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-20 03:58:28,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-12-20 03:58:28,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-12-20 03:58:28,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-12-20 03:58:28,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-12-20 03:58:28,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-12-20 03:58:28,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-12-20 03:58:28,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-12-20 03:58:28,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-12-20 03:58:28,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-12-20 03:58:28,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-12-20 03:58:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-12-20 03:58:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-20 03:58:28,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-20 03:58:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-20 03:58:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-12-20 03:58:28,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-12-20 03:58:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 03:58:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-20 03:58:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-20 03:58:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-20 03:58:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-20 03:58:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-20 03:58:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-20 03:58:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-20 03:58:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-20 03:58:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-20 03:58:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-20 03:58:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-20 03:58:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-20 03:58:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-20 03:58:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 03:58:28,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 03:58:28,491 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 03:58:28,493 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 03:58:28,691 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-12-20 03:58:28,691 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-20 03:58:28,691 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-12-20 03:58:28,691 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-20 03:58:28,691 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L749: SUMMARY for call __CS_cs(); srcloc: null [2023-12-20 03:58:28,692 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L749-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-12-20 03:58:28,692 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L749-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-20 03:58:32,972 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 03:58:33,012 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 03:58:33,012 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-20 03:58:33,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:58:33 BoogieIcfgContainer [2023-12-20 03:58:33,012 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 03:58:33,014 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 03:58:33,014 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 03:58:33,017 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 03:58:33,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 03:58:27" (1/3) ... [2023-12-20 03:58:33,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c105594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:58:33, skipping insertion in model container [2023-12-20 03:58:33,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:28" (2/3) ... [2023-12-20 03:58:33,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c105594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:58:33, skipping insertion in model container [2023-12-20 03:58:33,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:58:33" (3/3) ... [2023-12-20 03:58:33,020 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_fib-2.i [2023-12-20 03:58:33,034 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 03:58:33,034 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 03:58:33,066 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 03:58:33,070 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;@46a15773, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 03:58:33,070 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 03:58:33,074 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 100 states have (on average 1.37) internal successors, (137), 101 states have internal predecessors, (137), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-20 03:58:33,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-12-20 03:58:33,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:58:33,087 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:58:33,088 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:58:33,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:58:33,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1200545891, now seen corresponding path program 1 times [2023-12-20 03:58:33,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:58:33,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183532210] [2023-12-20 03:58:33,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:33,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:58:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-20 03:58:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 03:58:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 03:58:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 03:58:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 03:58:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-20 03:58:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 03:58:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 03:58:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 03:58:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 03:58:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 03:58:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 03:58:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-20 03:58:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-20 03:58:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-20 03:58:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 03:58:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 03:58:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 03:58:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 03:58:33,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 03:58:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 03:58:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 03:58:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 03:58:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 03:58:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 03:58:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-20 03:58:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-20 03:58:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-20 03:58:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-20 03:58:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 03:58:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 03:58:33,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 03:58:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 03:58:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 03:58:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-20 03:58:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-20 03:58:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-20 03:58:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-20 03:58:33,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 03:58:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-20 03:58:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:33,878 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-20 03:58:33,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:58:33,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183532210] [2023-12-20 03:58:33,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183532210] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:58:33,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:58:33,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:58:33,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223558709] [2023-12-20 03:58:33,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:58:33,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:58:33,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:58:33,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:58:33,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:58:33,903 INFO L87 Difference]: Start difference. First operand has 173 states, 100 states have (on average 1.37) internal successors, (137), 101 states have internal predecessors, (137), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-20 03:58:37,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:58:38,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:58:38,017 INFO L93 Difference]: Finished difference Result 348 states and 608 transitions. [2023-12-20 03:58:38,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:58:38,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 253 [2023-12-20 03:58:38,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:58:38,025 INFO L225 Difference]: With dead ends: 348 [2023-12-20 03:58:38,026 INFO L226 Difference]: Without dead ends: 174 [2023-12-20 03:58:38,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:58:38,032 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 3 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:58:38,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 508 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-12-20 03:58:38,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-12-20 03:58:38,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 172. [2023-12-20 03:58:38,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 100 states have (on average 1.31) internal successors, (131), 101 states have internal predecessors, (131), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-20 03:58:38,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 262 transitions. [2023-12-20 03:58:38,072 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 262 transitions. Word has length 253 [2023-12-20 03:58:38,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:58:38,078 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 262 transitions. [2023-12-20 03:58:38,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-20 03:58:38,078 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 262 transitions. [2023-12-20 03:58:38,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-20 03:58:38,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:58:38,089 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:58:38,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 03:58:38,089 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:58:38,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:58:38,090 INFO L85 PathProgramCache]: Analyzing trace with hash 874410286, now seen corresponding path program 1 times [2023-12-20 03:58:38,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:58:38,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864127056] [2023-12-20 03:58:38,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:38,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:58:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 03:58:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 03:58:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 03:58:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 03:58:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-20 03:58:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 03:58:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 03:58:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-20 03:58:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-20 03:58:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-20 03:58:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-20 03:58:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-20 03:58:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 03:58:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 03:58:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-20 03:58:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-20 03:58:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 03:58:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-20 03:58:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-20 03:58:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-20 03:58:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-20 03:58:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-20 03:58:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-20 03:58:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 03:58:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-20 03:58:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-20 03:58:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-20 03:58:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-20 03:58:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-20 03:58:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-20 03:58:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-20 03:58:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-20 03:58:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-20 03:58:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-20 03:58:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-20 03:58:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 03:58:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-20 03:58:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-20 03:58:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-20 03:58:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 03:58:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,556 INFO L134 CoverageAnalysis]: Checked inductivity of 3121 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-20 03:58:38,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:58:38,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864127056] [2023-12-20 03:58:38,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864127056] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:58:38,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:58:38,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:58:38,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564205738] [2023-12-20 03:58:38,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:58:38,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:58:38,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:58:38,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:58:38,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:58:38,562 INFO L87 Difference]: Start difference. First operand 172 states and 262 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-20 03:58:38,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:58:38,626 INFO L93 Difference]: Finished difference Result 343 states and 524 transitions. [2023-12-20 03:58:38,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:58:38,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 256 [2023-12-20 03:58:38,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:58:38,634 INFO L225 Difference]: With dead ends: 343 [2023-12-20 03:58:38,634 INFO L226 Difference]: Without dead ends: 173 [2023-12-20 03:58:38,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:58:38,638 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 0 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 508 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 03:58:38,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 508 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:58:38,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-20 03:58:38,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2023-12-20 03:58:38,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 101 states have (on average 1.306930693069307) internal successors, (132), 102 states have internal predecessors, (132), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-20 03:58:38,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 263 transitions. [2023-12-20 03:58:38,655 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 263 transitions. Word has length 256 [2023-12-20 03:58:38,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:58:38,655 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 263 transitions. [2023-12-20 03:58:38,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-20 03:58:38,656 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 263 transitions. [2023-12-20 03:58:38,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-12-20 03:58:38,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:58:38,661 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:58:38,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 03:58:38,662 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:58:38,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:58:38,662 INFO L85 PathProgramCache]: Analyzing trace with hash -524137494, now seen corresponding path program 1 times [2023-12-20 03:58:38,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:58:38,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427746441] [2023-12-20 03:58:38,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:38,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:58:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 03:58:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 03:58:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 03:58:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:38,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 03:58:39,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 03:58:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-20 03:58:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-20 03:58:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-20 03:58:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-20 03:58:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-20 03:58:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 03:58:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 03:58:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 03:58:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-20 03:58:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-20 03:58:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-20 03:58:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-20 03:58:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-20 03:58:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-20 03:58:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 03:58:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-20 03:58:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-20 03:58:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-20 03:58:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-20 03:58:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-20 03:58:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-20 03:58:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-20 03:58:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-20 03:58:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-20 03:58:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-20 03:58:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 03:58:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-20 03:58:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-20 03:58:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-20 03:58:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-20 03:58:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-20 03:58:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-20 03:58:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-20 03:58:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-20 03:58:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-20 03:58:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-20 03:58:39,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:58:39,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427746441] [2023-12-20 03:58:39,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427746441] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:58:39,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823325165] [2023-12-20 03:58:39,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:39,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:58:39,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:58:39,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:58:39,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 03:58:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:39,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 03:58:39,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:58:39,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-20 03:58:39,754 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:58:39,860 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-20 03:58:39,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823325165] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:58:39,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:58:39,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-12-20 03:58:39,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66970664] [2023-12-20 03:58:39,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:58:39,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 03:58:39,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:58:39,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 03:58:39,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:58:39,865 INFO L87 Difference]: Start difference. First operand 173 states and 263 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2023-12-20 03:58:39,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:58:39,941 INFO L93 Difference]: Finished difference Result 346 states and 528 transitions. [2023-12-20 03:58:39,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:58:39,942 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 257 [2023-12-20 03:58:39,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:58:39,943 INFO L225 Difference]: With dead ends: 346 [2023-12-20 03:58:39,943 INFO L226 Difference]: Without dead ends: 175 [2023-12-20 03:58:39,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 591 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:58:39,949 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 0 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 761 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 03:58:39,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 761 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:58:39,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-12-20 03:58:39,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2023-12-20 03:58:39,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 104 states have internal predecessors, (134), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-20 03:58:39,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 265 transitions. [2023-12-20 03:58:39,964 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 265 transitions. Word has length 257 [2023-12-20 03:58:39,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:58:39,964 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 265 transitions. [2023-12-20 03:58:39,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2023-12-20 03:58:39,965 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 265 transitions. [2023-12-20 03:58:39,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-20 03:58:39,967 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:58:39,967 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:58:39,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-20 03:58:40,176 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 03:58:40,177 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:58:40,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:58:40,177 INFO L85 PathProgramCache]: Analyzing trace with hash -609098646, now seen corresponding path program 2 times [2023-12-20 03:58:40,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:58:40,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963964464] [2023-12-20 03:58:40,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:40,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:58:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 03:58:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 03:58:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 03:58:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 03:58:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-20 03:58:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 03:58:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 03:58:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 03:58:40,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 03:58:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 03:58:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 03:58:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-20 03:58:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-20 03:58:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-20 03:58:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 03:58:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 03:58:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 03:58:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 03:58:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 03:58:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 03:58:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 03:58:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 03:58:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 03:58:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 03:58:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-20 03:58:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-20 03:58:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-20 03:58:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-20 03:58:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 03:58:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 03:58:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 03:58:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 03:58:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 03:58:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-20 03:58:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-20 03:58:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-20 03:58:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-20 03:58:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 03:58:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-20 03:58:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 03:58:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:40,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3126 trivial. 0 not checked. [2023-12-20 03:58:40,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:58:40,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963964464] [2023-12-20 03:58:40,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963964464] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:58:40,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539037715] [2023-12-20 03:58:40,590 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-20 03:58:40,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:58:40,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:58:40,591 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:58:40,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 03:58:41,077 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-20 03:58:41,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-20 03:58:41,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-20 03:58:41,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:58:41,213 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 03:58:42,032 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3127 trivial. 0 not checked. [2023-12-20 03:58:42,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 03:58:42,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539037715] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:58:42,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 03:58:42,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 9 [2023-12-20 03:58:42,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77729234] [2023-12-20 03:58:42,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:58:42,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 03:58:42,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:58:42,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 03:58:42,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-20 03:58:42,034 INFO L87 Difference]: Start difference. First operand 175 states and 265 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-20 03:58:46,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:58:50,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:58:54,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:58:54,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:58:54,701 INFO L93 Difference]: Finished difference Result 513 states and 784 transitions. [2023-12-20 03:58:54,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 03:58:54,701 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 259 [2023-12-20 03:58:54,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:58:54,705 INFO L225 Difference]: With dead ends: 513 [2023-12-20 03:58:54,706 INFO L226 Difference]: Without dead ends: 511 [2023-12-20 03:58:54,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:58:54,706 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 390 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:58:54,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 1249 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 367 Invalid, 3 Unknown, 0 Unchecked, 12.6s Time] [2023-12-20 03:58:54,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2023-12-20 03:58:54,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 341. [2023-12-20 03:58:54,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 198 states have (on average 1.297979797979798) internal successors, (257), 199 states have internal predecessors, (257), 131 states have call successors, (131), 11 states have call predecessors, (131), 11 states have return successors, (132), 130 states have call predecessors, (132), 129 states have call successors, (132) [2023-12-20 03:58:54,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 520 transitions. [2023-12-20 03:58:54,795 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 520 transitions. Word has length 259 [2023-12-20 03:58:54,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:58:54,797 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 520 transitions. [2023-12-20 03:58:54,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-20 03:58:54,798 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 520 transitions. [2023-12-20 03:58:54,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-12-20 03:58:54,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:58:54,800 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:58:54,809 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 03:58:55,006 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 03:58:55,007 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:58:55,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:58:55,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1122135805, now seen corresponding path program 1 times [2023-12-20 03:58:55,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:58:55,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160681212] [2023-12-20 03:58:55,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:55,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:58:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 03:58:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 03:58:55,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 03:58:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 03:58:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-20 03:58:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 03:58:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 03:58:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 03:58:55,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 03:58:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 03:58:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 03:58:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-20 03:58:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-20 03:58:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-20 03:58:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 03:58:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 03:58:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 03:58:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 03:58:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 03:58:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 03:58:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 03:58:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 03:58:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 03:58:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 03:58:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-20 03:58:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-20 03:58:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-20 03:58:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-20 03:58:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 03:58:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 03:58:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 03:58:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 03:58:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 03:58:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-20 03:58:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-20 03:58:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-20 03:58:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-20 03:58:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 03:58:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-20 03:58:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 03:58:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 03:58:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,434 INFO L134 CoverageAnalysis]: Checked inductivity of 3129 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3126 trivial. 0 not checked. [2023-12-20 03:58:55,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:58:55,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160681212] [2023-12-20 03:58:55,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160681212] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:58:55,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401098218] [2023-12-20 03:58:55,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:55,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:58:55,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:58:55,436 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:58:55,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 03:58:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:55,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 1381 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 03:58:55,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:58:56,005 INFO L134 CoverageAnalysis]: Checked inductivity of 3129 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3128 trivial. 0 not checked. [2023-12-20 03:58:56,005 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:58:56,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3129 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3126 trivial. 0 not checked. [2023-12-20 03:58:56,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401098218] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:58:56,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:58:56,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-12-20 03:58:56,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500779898] [2023-12-20 03:58:56,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:58:56,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 03:58:56,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:58:56,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 03:58:56,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:58:56,086 INFO L87 Difference]: Start difference. First operand 341 states and 520 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 1 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2023-12-20 03:59:00,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:04,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:08,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:12,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:16,199 WARN L539 Checker$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 03:59:16,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:16,246 INFO L93 Difference]: Finished difference Result 692 states and 1054 transitions. [2023-12-20 03:59:16,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 03:59:16,247 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 1 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) Word has length 264 [2023-12-20 03:59:16,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:16,249 INFO L225 Difference]: With dead ends: 692 [2023-12-20 03:59:16,249 INFO L226 Difference]: Without dead ends: 359 [2023-12-20 03:59:16,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 606 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:59:16,251 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 6 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:16,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1011 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 5 Unknown, 0 Unchecked, 20.1s Time] [2023-12-20 03:59:16,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-12-20 03:59:16,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2023-12-20 03:59:16,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 216 states have (on average 1.287037037037037) internal successors, (278), 217 states have internal predecessors, (278), 131 states have call successors, (131), 11 states have call predecessors, (131), 11 states have return successors, (132), 130 states have call predecessors, (132), 129 states have call successors, (132) [2023-12-20 03:59:16,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 541 transitions. [2023-12-20 03:59:16,292 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 541 transitions. Word has length 264 [2023-12-20 03:59:16,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:16,292 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 541 transitions. [2023-12-20 03:59:16,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 1 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2023-12-20 03:59:16,292 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 541 transitions. [2023-12-20 03:59:16,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-12-20 03:59:16,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:16,295 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 12, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:59:16,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 03:59:16,503 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 03:59:16,503 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:16,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:16,504 INFO L85 PathProgramCache]: Analyzing trace with hash 504471950, now seen corresponding path program 2 times [2023-12-20 03:59:16,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:16,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954240013] [2023-12-20 03:59:16,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:16,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 03:59:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-20 03:59:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 03:59:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 03:59:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 03:59:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 03:59:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 03:59:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 03:59:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-20 03:59:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-20 03:59:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-20 03:59:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 03:59:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 03:59:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 03:59:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 03:59:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 03:59:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 03:59:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 03:59:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 03:59:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 03:59:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 03:59:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-20 03:59:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-20 03:59:17,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-20 03:59:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-20 03:59:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 03:59:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 03:59:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 03:59:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 03:59:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 03:59:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-20 03:59:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-20 03:59:17,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-20 03:59:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-20 03:59:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 03:59:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-20 03:59:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 03:59:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 03:59:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-20 03:59:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-20 03:59:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-20 03:59:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3258 backedges. 2 proven. 112 refuted. 0 times theorem prover too weak. 3144 trivial. 0 not checked. [2023-12-20 03:59:17,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:17,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954240013] [2023-12-20 03:59:17,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954240013] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:59:17,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287360860] [2023-12-20 03:59:17,185 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-20 03:59:17,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:17,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:59:17,187 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:59:17,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 03:59:17,731 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-20 03:59:17,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-20 03:59:17,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-20 03:59:17,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:59:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3258 trivial. 0 not checked. [2023-12-20 03:59:17,753 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 03:59:17,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287360860] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:59:17,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 03:59:17,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-12-20 03:59:17,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183340300] [2023-12-20 03:59:17,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:59:17,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:59:17,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:17,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:59:17,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:59:17,755 INFO L87 Difference]: Start difference. First operand 359 states and 541 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2023-12-20 03:59:17,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:17,793 INFO L93 Difference]: Finished difference Result 682 states and 1034 transitions. [2023-12-20 03:59:17,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:59:17,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 282 [2023-12-20 03:59:17,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:17,795 INFO L225 Difference]: With dead ends: 682 [2023-12-20 03:59:17,795 INFO L226 Difference]: Without dead ends: 359 [2023-12-20 03:59:17,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:59:17,796 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 0 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:17,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 505 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:59:17,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-12-20 03:59:17,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2023-12-20 03:59:17,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 216 states have (on average 1.2824074074074074) internal successors, (277), 217 states have internal predecessors, (277), 131 states have call successors, (131), 11 states have call predecessors, (131), 11 states have return successors, (132), 130 states have call predecessors, (132), 129 states have call successors, (132) [2023-12-20 03:59:17,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 540 transitions. [2023-12-20 03:59:17,815 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 540 transitions. Word has length 282 [2023-12-20 03:59:17,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:17,815 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 540 transitions. [2023-12-20 03:59:17,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2023-12-20 03:59:17,816 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 540 transitions. [2023-12-20 03:59:17,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2023-12-20 03:59:17,819 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:17,819 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 12, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:59:17,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-20 03:59:18,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:18,026 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:18,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:18,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1477430090, now seen corresponding path program 1 times [2023-12-20 03:59:18,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:18,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163511951] [2023-12-20 03:59:18,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:18,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 03:59:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 03:59:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 03:59:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 03:59:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-20 03:59:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-20 03:59:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-20 03:59:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-20 03:59:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 03:59:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-20 03:59:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 03:59:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-20 03:59:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-20 03:59:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-20 03:59:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-20 03:59:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-20 03:59:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-20 03:59:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 03:59:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-20 03:59:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-20 03:59:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-20 03:59:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-20 03:59:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-20 03:59:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-20 03:59:18,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-20 03:59:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-20 03:59:18,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-20 03:59:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-20 03:59:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-20 03:59:18,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 03:59:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-20 03:59:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-20 03:59:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 03:59:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-20 03:59:18,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 03:59:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-20 03:59:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-20 03:59:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-20 03:59:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-20 03:59:18,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-20 03:59:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-20 03:59:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-20 03:59:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2023-12-20 03:59:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:18,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3418 backedges. 2 proven. 112 refuted. 0 times theorem prover too weak. 3304 trivial. 0 not checked. [2023-12-20 03:59:18,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:18,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163511951] [2023-12-20 03:59:18,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163511951] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:59:18,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754204679] [2023-12-20 03:59:18,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:18,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:18,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:59:18,742 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:59:18,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 03:59:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:19,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 1886 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 03:59:19,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:59:19,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3418 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2023-12-20 03:59:19,495 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:59:19,616 INFO L134 CoverageAnalysis]: Checked inductivity of 3418 backedges. 2 proven. 112 refuted. 0 times theorem prover too weak. 3304 trivial. 0 not checked. [2023-12-20 03:59:19,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754204679] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:59:19,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:59:19,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 7] total 11 [2023-12-20 03:59:19,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942432052] [2023-12-20 03:59:19,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:59:19,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:59:19,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:19,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:59:19,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:59:19,618 INFO L87 Difference]: Start difference. First operand 359 states and 540 transitions. Second operand has 11 states, 11 states have (on average 10.0) internal successors, (110), 9 states have internal predecessors, (110), 2 states have call successors, (91), 4 states have call predecessors, (91), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) [2023-12-20 03:59:23,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:27,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:31,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:35,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:39,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:43,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:47,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:51,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:55,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:56,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:56,245 INFO L93 Difference]: Finished difference Result 704 states and 1065 transitions. [2023-12-20 03:59:56,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 03:59:56,246 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 9 states have internal predecessors, (110), 2 states have call successors, (91), 4 states have call predecessors, (91), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) Word has length 301 [2023-12-20 03:59:56,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:56,248 INFO L225 Difference]: With dead ends: 704 [2023-12-20 03:59:56,248 INFO L226 Difference]: Without dead ends: 371 [2023-12-20 03:59:56,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 681 SyntacticMatches, 4 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:59:56,249 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 35 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 133 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:56,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 686 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 285 Invalid, 9 Unknown, 0 Unchecked, 36.6s Time] [2023-12-20 03:59:56,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-12-20 03:59:56,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2023-12-20 03:59:56,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 228 states have (on average 1.2763157894736843) internal successors, (291), 229 states have internal predecessors, (291), 131 states have call successors, (131), 11 states have call predecessors, (131), 11 states have return successors, (132), 130 states have call predecessors, (132), 129 states have call successors, (132) [2023-12-20 03:59:56,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 554 transitions. [2023-12-20 03:59:56,269 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 554 transitions. Word has length 301 [2023-12-20 03:59:56,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:56,269 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 554 transitions. [2023-12-20 03:59:56,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 9 states have internal predecessors, (110), 2 states have call successors, (91), 4 states have call predecessors, (91), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) [2023-12-20 03:59:56,269 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 554 transitions. [2023-12-20 03:59:56,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2023-12-20 03:59:56,272 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:56,272 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 18, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:59:56,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 03:59:56,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:56,487 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:56,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:56,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1497095606, now seen corresponding path program 1 times [2023-12-20 03:59:56,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:56,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367222073] [2023-12-20 03:59:56,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:56,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 03:59:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 03:59:57,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-20 03:59:57,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-20 03:59:57,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-20 03:59:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-20 03:59:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 03:59:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-20 03:59:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 03:59:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-20 03:59:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-20 03:59:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-20 03:59:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-20 03:59:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-20 03:59:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-20 03:59:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 03:59:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-20 03:59:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-20 03:59:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-20 03:59:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-20 03:59:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-20 03:59:57,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-20 03:59:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-20 03:59:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-20 03:59:57,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-20 03:59:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-20 03:59:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-20 03:59:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 03:59:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-20 03:59:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-20 03:59:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 03:59:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-20 03:59:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 03:59:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-20 03:59:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-20 03:59:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-20 03:59:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-20 03:59:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-20 03:59:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-20 03:59:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-20 03:59:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2023-12-20 03:59:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-12-20 03:59:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-12-20 03:59:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:57,472 INFO L134 CoverageAnalysis]: Checked inductivity of 3594 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3592 trivial. 0 not checked. [2023-12-20 03:59:57,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:57,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367222073] [2023-12-20 03:59:57,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367222073] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:59:57,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:59:57,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:59:57,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899465859] [2023-12-20 03:59:57,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:59:57,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 03:59:57,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:57,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 03:59:57,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:59:57,474 INFO L87 Difference]: Start difference. First operand 371 states and 554 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (44), 3 states have call predecessors, (44), 4 states have call successors, (44) [2023-12-20 04:00:01,513 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 04:00:05,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:09,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:13,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:14,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:00:14,928 INFO L93 Difference]: Finished difference Result 1034 states and 1579 transitions. [2023-12-20 04:00:14,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 04:00:14,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (44), 3 states have call predecessors, (44), 4 states have call successors, (44) Word has length 313 [2023-12-20 04:00:14,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:00:14,935 INFO L225 Difference]: With dead ends: 1034 [2023-12-20 04:00:14,935 INFO L226 Difference]: Without dead ends: 709 [2023-12-20 04:00:14,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-20 04:00:14,937 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 260 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 143 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2023-12-20 04:00:14,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 687 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 502 Invalid, 4 Unknown, 0 Unchecked, 17.1s Time] [2023-12-20 04:00:14,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2023-12-20 04:00:14,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 375. [2023-12-20 04:00:14,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 230 states have (on average 1.2739130434782608) internal successors, (293), 233 states have internal predecessors, (293), 131 states have call successors, (131), 11 states have call predecessors, (131), 13 states have return successors, (136), 130 states have call predecessors, (136), 129 states have call successors, (136) [2023-12-20 04:00:14,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 560 transitions. [2023-12-20 04:00:14,969 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 560 transitions. Word has length 313 [2023-12-20 04:00:14,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:00:14,969 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 560 transitions. [2023-12-20 04:00:14,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (44), 3 states have call predecessors, (44), 4 states have call successors, (44) [2023-12-20 04:00:14,969 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 560 transitions. [2023-12-20 04:00:14,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2023-12-20 04:00:14,971 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:00:14,971 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 18, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:00:14,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 04:00:14,972 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:00:14,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:00:14,972 INFO L85 PathProgramCache]: Analyzing trace with hash -874226152, now seen corresponding path program 2 times [2023-12-20 04:00:14,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:00:14,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972244949] [2023-12-20 04:00:14,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:00:14,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:00:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:15,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:00:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 04:00:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-20 04:00:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-20 04:00:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-20 04:00:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-20 04:00:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 04:00:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-20 04:00:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 04:00:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-20 04:00:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-20 04:00:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-20 04:00:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-20 04:00:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-20 04:00:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-20 04:00:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 04:00:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-20 04:00:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-20 04:00:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-20 04:00:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-20 04:00:16,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-20 04:00:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-20 04:00:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-20 04:00:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-20 04:00:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-20 04:00:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-20 04:00:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-20 04:00:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 04:00:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-20 04:00:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-20 04:00:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 04:00:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-20 04:00:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 04:00:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-20 04:00:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-20 04:00:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-20 04:00:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-20 04:00:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-20 04:00:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-20 04:00:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-20 04:00:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2023-12-20 04:00:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-12-20 04:00:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-12-20 04:00:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,159 INFO L134 CoverageAnalysis]: Checked inductivity of 3594 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3592 trivial. 0 not checked. [2023-12-20 04:00:16,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:00:16,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972244949] [2023-12-20 04:00:16,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972244949] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:00:16,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:00:16,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 04:00:16,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627017117] [2023-12-20 04:00:16,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:00:16,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 04:00:16,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:00:16,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 04:00:16,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-20 04:00:16,161 INFO L87 Difference]: Start difference. First operand 375 states and 560 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (44), 3 states have call predecessors, (44), 4 states have call successors, (44) [2023-12-20 04:00:20,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:24,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:25,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:00:25,935 INFO L93 Difference]: Finished difference Result 386 states and 570 transitions. [2023-12-20 04:00:25,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 04:00:25,935 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (44), 3 states have call predecessors, (44), 4 states have call successors, (44) Word has length 313 [2023-12-20 04:00:25,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:00:25,939 INFO L225 Difference]: With dead ends: 386 [2023-12-20 04:00:25,939 INFO L226 Difference]: Without dead ends: 384 [2023-12-20 04:00:25,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2023-12-20 04:00:25,940 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 305 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 184 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-12-20 04:00:25,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 970 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 789 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2023-12-20 04:00:25,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-12-20 04:00:25,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 380. [2023-12-20 04:00:25,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 234 states have (on average 1.2692307692307692) internal successors, (297), 237 states have internal predecessors, (297), 131 states have call successors, (131), 12 states have call predecessors, (131), 14 states have return successors, (136), 130 states have call predecessors, (136), 129 states have call successors, (136) [2023-12-20 04:00:25,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 564 transitions. [2023-12-20 04:00:25,988 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 564 transitions. Word has length 313 [2023-12-20 04:00:25,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:00:25,988 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 564 transitions. [2023-12-20 04:00:25,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (44), 3 states have call predecessors, (44), 4 states have call successors, (44) [2023-12-20 04:00:25,988 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 564 transitions. [2023-12-20 04:00:25,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2023-12-20 04:00:25,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:00:25,991 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 18, 6, 6, 6, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:00:25,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 04:00:25,991 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:00:25,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:00:25,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1080620075, now seen corresponding path program 1 times [2023-12-20 04:00:25,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:00:25,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831822736] [2023-12-20 04:00:25,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:00:25,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:00:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:00:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 04:00:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-20 04:00:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-20 04:00:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-20 04:00:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-20 04:00:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 04:00:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-20 04:00:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 04:00:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-20 04:00:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-20 04:00:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-20 04:00:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-20 04:00:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-20 04:00:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-20 04:00:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 04:00:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-20 04:00:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-20 04:00:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-20 04:00:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-20 04:00:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-20 04:00:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-20 04:00:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-20 04:00:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-20 04:00:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-20 04:00:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-20 04:00:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-20 04:00:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 04:00:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:26,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-20 04:00:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:27,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-20 04:00:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:27,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 04:00:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:27,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-20 04:00:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:27,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 04:00:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:27,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-20 04:00:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:27,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-20 04:00:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:27,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-20 04:00:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:27,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-20 04:00:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:27,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-20 04:00:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:27,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-20 04:00:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:27,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-20 04:00:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:27,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2023-12-20 04:00:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:27,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-12-20 04:00:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:27,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-12-20 04:00:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:27,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-20 04:00:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:27,045 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3596 trivial. 0 not checked. [2023-12-20 04:00:27,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:00:27,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831822736] [2023-12-20 04:00:27,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831822736] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:00:27,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:00:27,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 04:00:27,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078744136] [2023-12-20 04:00:27,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:00:27,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 04:00:27,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:00:27,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 04:00:27,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 04:00:27,047 INFO L87 Difference]: Start difference. First operand 380 states and 564 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (46), 4 states have call predecessors, (46), 2 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2023-12-20 04:00:31,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:35,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:36,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:00:36,688 INFO L93 Difference]: Finished difference Result 388 states and 570 transitions. [2023-12-20 04:00:36,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 04:00:36,689 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (46), 4 states have call predecessors, (46), 2 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 318 [2023-12-20 04:00:36,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:00:36,691 INFO L225 Difference]: With dead ends: 388 [2023-12-20 04:00:36,691 INFO L226 Difference]: Without dead ends: 386 [2023-12-20 04:00:36,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2023-12-20 04:00:36,692 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 258 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 183 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-12-20 04:00:36,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 822 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 682 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2023-12-20 04:00:36,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2023-12-20 04:00:36,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 384. [2023-12-20 04:00:36,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 237 states have (on average 1.2658227848101267) internal successors, (300), 240 states have internal predecessors, (300), 131 states have call successors, (131), 13 states have call predecessors, (131), 15 states have return successors, (136), 130 states have call predecessors, (136), 129 states have call successors, (136) [2023-12-20 04:00:36,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 567 transitions. [2023-12-20 04:00:36,716 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 567 transitions. Word has length 318 [2023-12-20 04:00:36,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:00:36,717 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 567 transitions. [2023-12-20 04:00:36,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (46), 4 states have call predecessors, (46), 2 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2023-12-20 04:00:36,717 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 567 transitions. [2023-12-20 04:00:36,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-12-20 04:00:36,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:00:36,719 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 18, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:00:36,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 04:00:36,719 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:00:36,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:00:36,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1003912200, now seen corresponding path program 1 times [2023-12-20 04:00:36,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:00:36,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400923291] [2023-12-20 04:00:36,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:00:36,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:00:37,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:00:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 04:00:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-20 04:00:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-20 04:00:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-20 04:00:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-20 04:00:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 04:00:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-20 04:00:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 04:00:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-20 04:00:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-20 04:00:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-20 04:00:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-20 04:00:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-20 04:00:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-20 04:00:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 04:00:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-20 04:00:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-20 04:00:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-20 04:00:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-20 04:00:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-20 04:00:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-20 04:00:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-20 04:00:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-20 04:00:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-20 04:00:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-20 04:00:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-20 04:00:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 04:00:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-20 04:00:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-20 04:00:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 04:00:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-20 04:00:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 04:00:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-20 04:00:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-20 04:00:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-20 04:00:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-20 04:00:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-20 04:00:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-20 04:00:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-20 04:00:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2023-12-20 04:00:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-12-20 04:00:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-12-20 04:00:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-20 04:00:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-20 04:00:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:37,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3610 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3604 trivial. 0 not checked. [2023-12-20 04:00:37,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:00:37,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400923291] [2023-12-20 04:00:37,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400923291] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:00:37,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:00:37,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 04:00:37,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502175509] [2023-12-20 04:00:37,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:00:37,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 04:00:37,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:00:37,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 04:00:37,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 04:00:37,870 INFO L87 Difference]: Start difference. First operand 384 states and 567 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2023-12-20 04:00:41,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:45,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:47,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:00:47,632 INFO L93 Difference]: Finished difference Result 392 states and 573 transitions. [2023-12-20 04:00:47,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 04:00:47,632 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 323 [2023-12-20 04:00:47,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:00:47,637 INFO L225 Difference]: With dead ends: 392 [2023-12-20 04:00:47,637 INFO L226 Difference]: Without dead ends: 390 [2023-12-20 04:00:47,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2023-12-20 04:00:47,638 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 258 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 183 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-12-20 04:00:47,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 822 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 682 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2023-12-20 04:00:47,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-12-20 04:00:47,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 388. [2023-12-20 04:00:47,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 240 states have (on average 1.2625) internal successors, (303), 243 states have internal predecessors, (303), 131 states have call successors, (131), 14 states have call predecessors, (131), 16 states have return successors, (136), 130 states have call predecessors, (136), 129 states have call successors, (136) [2023-12-20 04:00:47,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 570 transitions. [2023-12-20 04:00:47,665 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 570 transitions. Word has length 323 [2023-12-20 04:00:47,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:00:47,666 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 570 transitions. [2023-12-20 04:00:47,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2023-12-20 04:00:47,666 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 570 transitions. [2023-12-20 04:00:47,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-12-20 04:00:47,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:00:47,668 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 18, 6, 6, 6, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:00:47,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 04:00:47,668 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:00:47,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:00:47,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1991982233, now seen corresponding path program 1 times [2023-12-20 04:00:47,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:00:47,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276327131] [2023-12-20 04:00:47,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:00:47,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:00:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:00:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:00:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 04:00:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 04:00:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 04:00:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-20 04:00:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-20 04:00:48,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-20 04:00:48,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 04:00:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 04:00:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 04:00:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 04:00:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 04:00:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 04:00:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 04:00:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 04:00:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 04:00:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 04:00:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-20 04:00:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-20 04:00:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-20 04:00:48,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-20 04:00:48,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 04:00:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 04:00:48,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 04:00:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 04:00:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 04:00:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-20 04:00:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-20 04:00:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-20 04:00:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-20 04:00:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 04:00:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-20 04:00:48,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 04:00:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 04:00:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-20 04:00:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-20 04:00:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-20 04:00:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-20 04:00:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-20 04:00:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-20 04:00:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-20 04:00:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-20 04:00:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-20 04:00:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-20 04:00:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-20 04:00:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:48,780 INFO L134 CoverageAnalysis]: Checked inductivity of 3624 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3616 trivial. 0 not checked. [2023-12-20 04:00:48,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:00:48,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276327131] [2023-12-20 04:00:48,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276327131] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:00:48,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:00:48,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 04:00:48,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719628253] [2023-12-20 04:00:48,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:00:48,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 04:00:48,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:00:48,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 04:00:48,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-20 04:00:48,782 INFO L87 Difference]: Start difference. First operand 388 states and 570 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (48), 4 states have call predecessors, (48), 2 states have return successors, (47), 3 states have call predecessors, (47), 4 states have call successors, (47) [2023-12-20 04:00:52,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:54,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:00:54,275 INFO L93 Difference]: Finished difference Result 396 states and 576 transitions. [2023-12-20 04:00:54,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 04:00:54,275 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (48), 4 states have call predecessors, (48), 2 states have return successors, (47), 3 states have call predecessors, (47), 4 states have call successors, (47) Word has length 327 [2023-12-20 04:00:54,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:00:54,277 INFO L225 Difference]: With dead ends: 396 [2023-12-20 04:00:54,277 INFO L226 Difference]: Without dead ends: 394 [2023-12-20 04:00:54,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2023-12-20 04:00:54,278 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 430 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 532 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-20 04:00:54,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 784 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [532 Valid, 546 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2023-12-20 04:00:54,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2023-12-20 04:00:54,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 392. [2023-12-20 04:00:54,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 243 states have (on average 1.2592592592592593) internal successors, (306), 246 states have internal predecessors, (306), 131 states have call successors, (131), 15 states have call predecessors, (131), 17 states have return successors, (136), 130 states have call predecessors, (136), 129 states have call successors, (136) [2023-12-20 04:00:54,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 573 transitions. [2023-12-20 04:00:54,303 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 573 transitions. Word has length 327 [2023-12-20 04:00:54,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:00:54,304 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 573 transitions. [2023-12-20 04:00:54,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (48), 4 states have call predecessors, (48), 2 states have return successors, (47), 3 states have call predecessors, (47), 4 states have call successors, (47) [2023-12-20 04:00:54,304 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 573 transitions. [2023-12-20 04:00:54,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2023-12-20 04:00:54,306 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:00:54,306 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 18, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:00:54,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 04:00:54,306 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:00:54,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:00:54,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1054074662, now seen corresponding path program 1 times [2023-12-20 04:00:54,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:00:54,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087805656] [2023-12-20 04:00:54,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:00:54,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:00:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:00:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:00:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 04:00:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 04:00:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 04:00:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-20 04:00:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-20 04:00:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-20 04:00:55,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 04:00:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 04:00:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 04:00:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 04:00:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 04:00:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 04:00:55,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 04:00:55,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 04:00:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 04:00:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 04:00:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-20 04:00:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-20 04:00:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-20 04:00:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-20 04:00:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 04:00:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 04:00:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 04:00:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 04:00:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 04:00:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-20 04:00:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-20 04:00:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-20 04:00:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-20 04:00:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 04:00:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-20 04:00:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 04:00:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 04:00:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-20 04:00:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-20 04:00:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-20 04:00:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-20 04:00:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-20 04:00:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-20 04:00:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-20 04:00:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-20 04:00:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-20 04:00:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-20 04:00:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-20 04:00:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 04:00:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:55,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3642 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3632 trivial. 0 not checked. [2023-12-20 04:00:55,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:00:55,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087805656] [2023-12-20 04:00:55,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087805656] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:00:55,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:00:55,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 04:00:55,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110615789] [2023-12-20 04:00:55,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:00:55,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 04:00:55,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:00:55,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 04:00:55,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-20 04:00:55,389 INFO L87 Difference]: Start difference. First operand 392 states and 573 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (49), 4 states have call predecessors, (49), 2 states have return successors, (48), 3 states have call predecessors, (48), 4 states have call successors, (48) [2023-12-20 04:00:59,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:03,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:04,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:01:04,852 INFO L93 Difference]: Finished difference Result 400 states and 579 transitions. [2023-12-20 04:01:04,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 04:01:04,853 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (49), 4 states have call predecessors, (49), 2 states have return successors, (48), 3 states have call predecessors, (48), 4 states have call successors, (48) Word has length 332 [2023-12-20 04:01:04,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:01:04,855 INFO L225 Difference]: With dead ends: 400 [2023-12-20 04:01:04,855 INFO L226 Difference]: Without dead ends: 396 [2023-12-20 04:01:04,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2023-12-20 04:01:04,856 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 331 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 314 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-12-20 04:01:04,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 932 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [314 Valid, 653 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2023-12-20 04:01:04,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-12-20 04:01:04,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 394. [2023-12-20 04:01:04,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 245 states have (on average 1.2530612244897958) internal successors, (307), 247 states have internal predecessors, (307), 131 states have call successors, (131), 16 states have call predecessors, (131), 17 states have return successors, (136), 130 states have call predecessors, (136), 129 states have call successors, (136) [2023-12-20 04:01:04,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 574 transitions. [2023-12-20 04:01:04,899 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 574 transitions. Word has length 332 [2023-12-20 04:01:04,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:01:04,899 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 574 transitions. [2023-12-20 04:01:04,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (49), 4 states have call predecessors, (49), 2 states have return successors, (48), 3 states have call predecessors, (48), 4 states have call successors, (48) [2023-12-20 04:01:04,899 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 574 transitions. [2023-12-20 04:01:04,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-12-20 04:01:04,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:01:04,902 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 18, 6, 6, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:01:04,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 04:01:04,902 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:01:04,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:01:04,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1089055549, now seen corresponding path program 1 times [2023-12-20 04:01:04,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:01:04,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711777243] [2023-12-20 04:01:04,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:01:04,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:01:05,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:01:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 04:01:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 04:01:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:01:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:05,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:01:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:01:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:01:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:01:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:01:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-20 04:01:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-20 04:01:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-20 04:01:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-20 04:01:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 04:01:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-20 04:01:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-20 04:01:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-20 04:01:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-20 04:01:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-20 04:01:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-20 04:01:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-20 04:01:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-20 04:01:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-20 04:01:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-20 04:01:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-20 04:01:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 04:01:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-20 04:01:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-20 04:01:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-20 04:01:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 04:01:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-20 04:01:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 04:01:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-20 04:01:05,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-20 04:01:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-20 04:01:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-20 04:01:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-20 04:01:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-12-20 04:01:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-20 04:01:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-12-20 04:01:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2023-12-20 04:01:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-20 04:01:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-20 04:01:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 04:01:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-20 04:01:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-12-20 04:01:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-12-20 04:01:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-12-20 04:01:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-20 04:01:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:05,960 INFO L134 CoverageAnalysis]: Checked inductivity of 4320 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4317 trivial. 0 not checked. [2023-12-20 04:01:05,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:01:05,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711777243] [2023-12-20 04:01:05,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711777243] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:01:05,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014285488] [2023-12-20 04:01:05,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:01:05,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:01:05,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:01:05,980 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 04:01:05,984 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 04:01:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:07,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 2560 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-20 04:01:07,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:01:07,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-12-20 04:01:07,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2023-12-20 04:01:07,195 INFO L134 CoverageAnalysis]: Checked inductivity of 4320 backedges. 800 proven. 4 refuted. 0 times theorem prover too weak. 3516 trivial. 0 not checked. [2023-12-20 04:01:07,195 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:01:07,278 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 12 treesize of output 8 [2023-12-20 04:01:07,448 INFO L134 CoverageAnalysis]: Checked inductivity of 4320 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4316 trivial. 0 not checked. [2023-12-20 04:01:07,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014285488] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:01:07,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:01:07,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2023-12-20 04:01:07,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596170459] [2023-12-20 04:01:07,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:01:07,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 04:01:07,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:01:07,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 04:01:07,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-12-20 04:01:07,451 INFO L87 Difference]: Start difference. First operand 394 states and 574 transitions. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 10 states have internal predecessors, (143), 10 states have call successors, (103), 7 states have call predecessors, (103), 7 states have return successors, (102), 10 states have call predecessors, (102), 10 states have call successors, (102) [2023-12-20 04:01:11,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:15,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:19,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:23,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:27,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:31,578 WARN L539 Checker$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 04:01:35,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:39,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:41,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:01:41,726 INFO L93 Difference]: Finished difference Result 1030 states and 1523 transitions. [2023-12-20 04:01:41,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 04:01:41,727 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 10 states have internal predecessors, (143), 10 states have call successors, (103), 7 states have call predecessors, (103), 7 states have return successors, (102), 10 states have call predecessors, (102), 10 states have call successors, (102) Word has length 370 [2023-12-20 04:01:41,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:01:41,731 INFO L225 Difference]: With dead ends: 1030 [2023-12-20 04:01:41,731 INFO L226 Difference]: Without dead ends: 810 [2023-12-20 04:01:41,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 869 GetRequests, 842 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=228, Invalid=584, Unknown=0, NotChecked=0, Total=812 [2023-12-20 04:01:41,732 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 799 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 918 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 1742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.4s IncrementalHoareTripleChecker+Time [2023-12-20 04:01:41,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 1130 Invalid, 1742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 816 Invalid, 8 Unknown, 0 Unchecked, 33.4s Time] [2023-12-20 04:01:41,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2023-12-20 04:01:41,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 740. [2023-12-20 04:01:41,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 449 states have (on average 1.2850779510022272) internal successors, (577), 457 states have internal predecessors, (577), 257 states have call successors, (257), 24 states have call predecessors, (257), 33 states have return successors, (290), 258 states have call predecessors, (290), 255 states have call successors, (290) [2023-12-20 04:01:41,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1124 transitions. [2023-12-20 04:01:41,828 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1124 transitions. Word has length 370 [2023-12-20 04:01:41,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:01:41,829 INFO L495 AbstractCegarLoop]: Abstraction has 740 states and 1124 transitions. [2023-12-20 04:01:41,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 10 states have internal predecessors, (143), 10 states have call successors, (103), 7 states have call predecessors, (103), 7 states have return successors, (102), 10 states have call predecessors, (102), 10 states have call successors, (102) [2023-12-20 04:01:41,829 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1124 transitions. [2023-12-20 04:01:41,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-12-20 04:01:41,833 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:01:41,833 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 18, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:41,844 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 04:01:42,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:01:42,044 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:01:42,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:01:42,044 INFO L85 PathProgramCache]: Analyzing trace with hash 660446997, now seen corresponding path program 1 times [2023-12-20 04:01:42,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:01:42,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493773137] [2023-12-20 04:01:42,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:01:42,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:01:42,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:01:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 04:01:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-20 04:01:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-20 04:01:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-20 04:01:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-20 04:01:42,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 04:01:42,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-20 04:01:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 04:01:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-20 04:01:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-20 04:01:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-20 04:01:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-20 04:01:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-20 04:01:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-20 04:01:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 04:01:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-20 04:01:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-20 04:01:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-20 04:01:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-20 04:01:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-20 04:01:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-20 04:01:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-20 04:01:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-20 04:01:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-20 04:01:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-20 04:01:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-20 04:01:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 04:01:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-20 04:01:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-20 04:01:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 04:01:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-20 04:01:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 04:01:42,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-20 04:01:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-20 04:01:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-20 04:01:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-20 04:01:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-20 04:01:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-20 04:01:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-20 04:01:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2023-12-20 04:01:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-12-20 04:01:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-12-20 04:01:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-20 04:01:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-20 04:01:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-20 04:01:42,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-20 04:01:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-20 04:01:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:42,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3664 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3652 trivial. 0 not checked. [2023-12-20 04:01:42,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:01:42,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493773137] [2023-12-20 04:01:42,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493773137] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:01:42,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:01:42,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 04:01:42,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923408884] [2023-12-20 04:01:42,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:01:42,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 04:01:42,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:01:42,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 04:01:42,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 04:01:42,948 INFO L87 Difference]: Start difference. First operand 740 states and 1124 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (50), 4 states have call predecessors, (50), 2 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2023-12-20 04:01:47,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:51,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:52,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:01:52,792 INFO L93 Difference]: Finished difference Result 742 states and 1125 transitions. [2023-12-20 04:01:52,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 04:01:52,793 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (50), 4 states have call predecessors, (50), 2 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 338 [2023-12-20 04:01:52,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:01:52,797 INFO L225 Difference]: With dead ends: 742 [2023-12-20 04:01:52,797 INFO L226 Difference]: Without dead ends: 523 [2023-12-20 04:01:52,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2023-12-20 04:01:52,800 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 252 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 183 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-12-20 04:01:52,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 835 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 667 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2023-12-20 04:01:52,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-12-20 04:01:52,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 521. [2023-12-20 04:01:52,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 330 states have (on average 1.3484848484848484) internal successors, (445), 337 states have internal predecessors, (445), 165 states have call successors, (165), 17 states have call predecessors, (165), 25 states have return successors, (193), 166 states have call predecessors, (193), 164 states have call successors, (193) [2023-12-20 04:01:52,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 803 transitions. [2023-12-20 04:01:52,842 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 803 transitions. Word has length 338 [2023-12-20 04:01:52,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:01:52,842 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 803 transitions. [2023-12-20 04:01:52,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (50), 4 states have call predecessors, (50), 2 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2023-12-20 04:01:52,842 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 803 transitions. [2023-12-20 04:01:52,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-12-20 04:01:52,845 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:01:52,845 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 18, 6, 6, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:52,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 04:01:52,845 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:01:52,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:01:52,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1384534159, now seen corresponding path program 1 times [2023-12-20 04:01:52,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:01:52,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142222610] [2023-12-20 04:01:52,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:01:52,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:01:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:01:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:01:53,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-20 04:01:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:01:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:53,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:01:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:01:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:01:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:01:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:01:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 04:01:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:01:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-20 04:01:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-20 04:01:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-20 04:01:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-20 04:01:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 04:01:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 04:01:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-20 04:01:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-20 04:01:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-20 04:01:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-20 04:01:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-20 04:01:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 04:01:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 04:01:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 04:01:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-20 04:01:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-20 04:01:53,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-20 04:01:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 04:01:53,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 04:01:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 04:01:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-20 04:01:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 04:01:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-20 04:01:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 04:01:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 04:01:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-20 04:01:53,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-20 04:01:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-20 04:01:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 04:01:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-20 04:01:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 04:01:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 04:01:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-20 04:01:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-20 04:01:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-20 04:01:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-20 04:01:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-12-20 04:01:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-12-20 04:01:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:53,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4323 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4317 trivial. 0 not checked. [2023-12-20 04:01:53,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:01:53,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142222610] [2023-12-20 04:01:53,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142222610] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:01:53,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96919313] [2023-12-20 04:01:53,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:01:53,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:01:53,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:01:53,858 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 04:01:53,860 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 04:01:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:54,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 2587 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-20 04:01:54,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:01:54,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-12-20 04:01:54,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2023-12-20 04:01:55,049 INFO L134 CoverageAnalysis]: Checked inductivity of 4323 backedges. 800 proven. 7 refuted. 0 times theorem prover too weak. 3516 trivial. 0 not checked. [2023-12-20 04:01:55,049 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:01:55,166 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 12 treesize of output 8 [2023-12-20 04:01:55,322 INFO L134 CoverageAnalysis]: Checked inductivity of 4323 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4316 trivial. 0 not checked. [2023-12-20 04:01:55,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96919313] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:01:55,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:01:55,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 11 [2023-12-20 04:01:55,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480890661] [2023-12-20 04:01:55,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:01:55,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 04:01:55,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:01:55,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 04:01:55,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-12-20 04:01:55,324 INFO L87 Difference]: Start difference. First operand 521 states and 803 transitions. Second operand has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 8 states have internal predecessors, (120), 8 states have call successors, (103), 7 states have call predecessors, (103), 6 states have return successors, (100), 8 states have call predecessors, (100), 8 states have call successors, (100) [2023-12-20 04:01:59,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:03,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:07,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:11,415 WARN L539 Checker$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 04:02:15,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:19,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:23,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:26,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:02:26,036 INFO L93 Difference]: Finished difference Result 973 states and 1486 transitions. [2023-12-20 04:02:26,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 04:02:26,036 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 8 states have internal predecessors, (120), 8 states have call successors, (103), 7 states have call predecessors, (103), 6 states have return successors, (100), 8 states have call predecessors, (100), 8 states have call successors, (100) Word has length 369 [2023-12-20 04:02:26,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:02:26,039 INFO L225 Difference]: With dead ends: 973 [2023-12-20 04:02:26,039 INFO L226 Difference]: Without dead ends: 491 [2023-12-20 04:02:26,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 865 GetRequests, 842 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=177, Invalid=423, Unknown=0, NotChecked=0, Total=600 [2023-12-20 04:02:26,041 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 455 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 273 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2023-12-20 04:02:26,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 1198 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 1080 Invalid, 7 Unknown, 0 Unchecked, 30.0s Time] [2023-12-20 04:02:26,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2023-12-20 04:02:26,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 458. [2023-12-20 04:02:26,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 289 states have (on average 1.2906574394463668) internal successors, (373), 293 states have internal predecessors, (373), 147 states have call successors, (147), 16 states have call predecessors, (147), 21 states have return successors, (164), 148 states have call predecessors, (164), 146 states have call successors, (164) [2023-12-20 04:02:26,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 684 transitions. [2023-12-20 04:02:26,093 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 684 transitions. Word has length 369 [2023-12-20 04:02:26,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:02:26,094 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 684 transitions. [2023-12-20 04:02:26,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 8 states have internal predecessors, (120), 8 states have call successors, (103), 7 states have call predecessors, (103), 6 states have return successors, (100), 8 states have call predecessors, (100), 8 states have call successors, (100) [2023-12-20 04:02:26,094 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 684 transitions. [2023-12-20 04:02:26,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2023-12-20 04:02:26,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:02:26,096 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 18, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:02:26,110 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 04:02:26,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:02:26,311 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:02:26,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:02:26,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1796621461, now seen corresponding path program 1 times [2023-12-20 04:02:26,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:02:26,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708530070] [2023-12-20 04:02:26,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:02:26,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:02:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:26,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:02:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:02:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:02:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:02:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:02:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:02:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:02:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-20 04:02:27,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-20 04:02:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-20 04:02:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 04:02:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:02:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-20 04:02:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-20 04:02:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-20 04:02:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-20 04:02:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 04:02:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 04:02:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-20 04:02:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-20 04:02:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-20 04:02:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-20 04:02:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-20 04:02:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 04:02:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 04:02:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 04:02:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-20 04:02:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-20 04:02:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-20 04:02:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 04:02:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 04:02:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 04:02:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-20 04:02:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 04:02:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-20 04:02:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 04:02:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 04:02:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-20 04:02:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-20 04:02:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-20 04:02:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 04:02:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-20 04:02:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 04:02:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 04:02:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-20 04:02:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-20 04:02:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-20 04:02:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:27,172 INFO L134 CoverageAnalysis]: Checked inductivity of 4124 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 4121 trivial. 0 not checked. [2023-12-20 04:02:27,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:02:27,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708530070] [2023-12-20 04:02:27,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708530070] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:02:27,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666107853] [2023-12-20 04:02:27,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:02:27,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:02:27,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:02:27,174 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:02:27,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-20 04:02:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:28,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 2400 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-20 04:02:28,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:02:29,482 INFO L134 CoverageAnalysis]: Checked inductivity of 4124 backedges. 0 proven. 640 refuted. 0 times theorem prover too weak. 3484 trivial. 0 not checked. [2023-12-20 04:02:29,482 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:02:30,124 INFO L134 CoverageAnalysis]: Checked inductivity of 4124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4124 trivial. 0 not checked. [2023-12-20 04:02:30,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666107853] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-20 04:02:30,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-20 04:02:30,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11, 7] total 23 [2023-12-20 04:02:30,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585634316] [2023-12-20 04:02:30,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:02:30,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 04:02:30,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:02:30,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 04:02:30,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2023-12-20 04:02:30,126 INFO L87 Difference]: Start difference. First operand 458 states and 684 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2023-12-20 04:02:31,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:02:31,535 INFO L93 Difference]: Finished difference Result 944 states and 1410 transitions. [2023-12-20 04:02:31,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 04:02:31,535 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 351 [2023-12-20 04:02:31,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:02:31,539 INFO L225 Difference]: With dead ends: 944 [2023-12-20 04:02:31,539 INFO L226 Difference]: Without dead ends: 942 [2023-12-20 04:02:31,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 818 GetRequests, 790 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=135, Invalid=735, Unknown=0, NotChecked=0, Total=870 [2023-12-20 04:02:31,540 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 572 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 04:02:31,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 976 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 04:02:31,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2023-12-20 04:02:31,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 842. [2023-12-20 04:02:31,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 506 states have (on average 1.256916996047431) internal successors, (636), 511 states have internal predecessors, (636), 303 states have call successors, (303), 26 states have call predecessors, (303), 32 states have return successors, (326), 304 states have call predecessors, (326), 301 states have call successors, (326) [2023-12-20 04:02:31,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1265 transitions. [2023-12-20 04:02:31,624 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1265 transitions. Word has length 351 [2023-12-20 04:02:31,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:02:31,625 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1265 transitions. [2023-12-20 04:02:31,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2023-12-20 04:02:31,625 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1265 transitions. [2023-12-20 04:02:31,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2023-12-20 04:02:31,628 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:02:31,628 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 18, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:02:31,644 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 04:02:31,841 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,SelfDestructingSolverStorable16 [2023-12-20 04:02:31,841 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:02:31,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:02:31,848 INFO L85 PathProgramCache]: Analyzing trace with hash -952261933, now seen corresponding path program 1 times [2023-12-20 04:02:31,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:02:31,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169269633] [2023-12-20 04:02:31,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:02:31,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:02:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:02:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:02:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:02:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:02:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:02:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:02:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:02:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-20 04:02:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-20 04:02:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-20 04:02:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 04:02:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:02:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-20 04:02:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-20 04:02:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-20 04:02:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-20 04:02:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 04:02:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 04:02:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-20 04:02:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-20 04:02:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-20 04:02:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-20 04:02:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-20 04:02:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 04:02:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 04:02:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 04:02:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-20 04:02:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-20 04:02:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-20 04:02:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 04:02:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 04:02:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 04:02:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-20 04:02:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 04:02:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-20 04:02:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 04:02:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 04:02:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-20 04:02:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-20 04:02:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-20 04:02:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 04:02:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-20 04:02:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 04:02:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 04:02:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-20 04:02:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-20 04:02:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-20 04:02:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:32,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4124 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 4121 trivial. 0 not checked. [2023-12-20 04:02:32,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:02:32,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169269633] [2023-12-20 04:02:32,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169269633] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:02:32,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975383068] [2023-12-20 04:02:32,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:02:32,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:02:32,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:02:32,716 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:02:32,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-20 04:02:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:33,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 2389 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-20 04:02:33,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:02:33,848 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 04:02:34,186 INFO L134 CoverageAnalysis]: Checked inductivity of 4124 backedges. 652 proven. 4 refuted. 0 times theorem prover too weak. 3468 trivial. 0 not checked. [2023-12-20 04:02:34,187 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:02:34,700 INFO L134 CoverageAnalysis]: Checked inductivity of 4124 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 4108 trivial. 0 not checked. [2023-12-20 04:02:34,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975383068] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:02:34,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:02:34,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 9] total 29 [2023-12-20 04:02:34,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593296218] [2023-12-20 04:02:34,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:02:34,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-20 04:02:34,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:02:34,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-20 04:02:34,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2023-12-20 04:02:34,702 INFO L87 Difference]: Start difference. First operand 842 states and 1265 transitions. Second operand has 29 states, 26 states have (on average 5.384615384615385) internal successors, (140), 24 states have internal predecessors, (140), 18 states have call successors, (106), 11 states have call predecessors, (106), 11 states have return successors, (105), 14 states have call predecessors, (105), 18 states have call successors, (105) [2023-12-20 04:02:38,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:42,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:46,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:50,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:56,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:02:56,953 INFO L93 Difference]: Finished difference Result 1985 states and 2970 transitions. [2023-12-20 04:02:56,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-20 04:02:56,953 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 5.384615384615385) internal successors, (140), 24 states have internal predecessors, (140), 18 states have call successors, (106), 11 states have call predecessors, (106), 11 states have return successors, (105), 14 states have call predecessors, (105), 18 states have call successors, (105) Word has length 351 [2023-12-20 04:02:56,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:02:56,963 INFO L225 Difference]: With dead ends: 1985 [2023-12-20 04:02:56,963 INFO L226 Difference]: Without dead ends: 1189 [2023-12-20 04:02:56,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 873 GetRequests, 800 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1566 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1087, Invalid=4315, Unknown=0, NotChecked=0, Total=5402 [2023-12-20 04:02:56,967 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 1331 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 2938 mSolverCounterSat, 1113 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 4055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1113 IncrementalHoareTripleChecker+Valid, 2938 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2023-12-20 04:02:56,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 1734 Invalid, 4055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1113 Valid, 2938 Invalid, 4 Unknown, 0 Unchecked, 19.3s Time] [2023-12-20 04:02:56,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2023-12-20 04:02:57,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 872. [2023-12-20 04:02:57,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 537 states have (on average 1.2942271880819367) internal successors, (695), 570 states have internal predecessors, (695), 276 states have call successors, (276), 55 states have call predecessors, (276), 58 states have return successors, (294), 246 states have call predecessors, (294), 274 states have call successors, (294) [2023-12-20 04:02:57,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1265 transitions. [2023-12-20 04:02:57,084 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1265 transitions. Word has length 351 [2023-12-20 04:02:57,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:02:57,084 INFO L495 AbstractCegarLoop]: Abstraction has 872 states and 1265 transitions. [2023-12-20 04:02:57,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 5.384615384615385) internal successors, (140), 24 states have internal predecessors, (140), 18 states have call successors, (106), 11 states have call predecessors, (106), 11 states have return successors, (105), 14 states have call predecessors, (105), 18 states have call successors, (105) [2023-12-20 04:02:57,085 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1265 transitions. [2023-12-20 04:02:57,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2023-12-20 04:02:57,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:02:57,088 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 18, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:02:57,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-20 04:02:57,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-20 04:02:57,301 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:02:57,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:02:57,301 INFO L85 PathProgramCache]: Analyzing trace with hash 971596433, now seen corresponding path program 1 times [2023-12-20 04:02:57,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:02:57,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749052358] [2023-12-20 04:02:57,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:02:57,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:02:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:02:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:02:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:02:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:02:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:02:58,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:02:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:02:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-20 04:02:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-20 04:02:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-20 04:02:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 04:02:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:02:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-20 04:02:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-20 04:02:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-20 04:02:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-20 04:02:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 04:02:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 04:02:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-20 04:02:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-20 04:02:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-20 04:02:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-20 04:02:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-20 04:02:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 04:02:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 04:02:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 04:02:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-20 04:02:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-20 04:02:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-20 04:02:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 04:02:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 04:02:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 04:02:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-20 04:02:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 04:02:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-20 04:02:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 04:02:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 04:02:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-20 04:02:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-20 04:02:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-20 04:02:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 04:02:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-20 04:02:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 04:02:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 04:02:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-20 04:02:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-20 04:02:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-20 04:02:58,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:58,328 INFO L134 CoverageAnalysis]: Checked inductivity of 4124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4124 trivial. 0 not checked. [2023-12-20 04:02:58,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:02:58,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749052358] [2023-12-20 04:02:58,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749052358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:02:58,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:02:58,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 04:02:58,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099144426] [2023-12-20 04:02:58,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:02:58,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 04:02:58,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:02:58,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 04:02:58,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-20 04:02:58,331 INFO L87 Difference]: Start difference. First operand 872 states and 1265 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2023-12-20 04:03:02,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:06,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:10,432 WARN L539 Checker$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 04:03:11,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:03:11,993 INFO L93 Difference]: Finished difference Result 1235 states and 1786 transitions. [2023-12-20 04:03:11,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 04:03:11,993 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 351 [2023-12-20 04:03:11,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:03:11,995 INFO L225 Difference]: With dead ends: 1235 [2023-12-20 04:03:11,996 INFO L226 Difference]: Without dead ends: 654 [2023-12-20 04:03:11,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-20 04:03:11,998 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 403 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 430 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-12-20 04:03:11,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 431 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 646 Invalid, 3 Unknown, 0 Unchecked, 13.2s Time] [2023-12-20 04:03:11,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2023-12-20 04:03:12,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 630. [2023-12-20 04:03:12,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 398 states have (on average 1.2814070351758795) internal successors, (510), 419 states have internal predecessors, (510), 188 states have call successors, (188), 40 states have call predecessors, (188), 43 states have return successors, (202), 170 states have call predecessors, (202), 187 states have call successors, (202) [2023-12-20 04:03:12,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 900 transitions. [2023-12-20 04:03:12,089 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 900 transitions. Word has length 351 [2023-12-20 04:03:12,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:03:12,089 INFO L495 AbstractCegarLoop]: Abstraction has 630 states and 900 transitions. [2023-12-20 04:03:12,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2023-12-20 04:03:12,090 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 900 transitions. [2023-12-20 04:03:12,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-12-20 04:03:12,092 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:03:12,092 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 18, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:03:12,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 04:03:12,093 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:03:12,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:03:12,093 INFO L85 PathProgramCache]: Analyzing trace with hash -119407942, now seen corresponding path program 1 times [2023-12-20 04:03:12,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:03:12,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372796422] [2023-12-20 04:03:12,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:03:12,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:03:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:03:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:03:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:03:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:03:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:03:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:03:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:03:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-20 04:03:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-20 04:03:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-20 04:03:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 04:03:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:03:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-20 04:03:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-20 04:03:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-20 04:03:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-20 04:03:13,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 04:03:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 04:03:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-20 04:03:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-20 04:03:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-20 04:03:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-20 04:03:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-20 04:03:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 04:03:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 04:03:13,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 04:03:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-20 04:03:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-20 04:03:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-20 04:03:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 04:03:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 04:03:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 04:03:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-20 04:03:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 04:03:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-20 04:03:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 04:03:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 04:03:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-20 04:03:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-20 04:03:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-20 04:03:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 04:03:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-20 04:03:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 04:03:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 04:03:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-20 04:03:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-20 04:03:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-20 04:03:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-20 04:03:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:13,312 INFO L134 CoverageAnalysis]: Checked inductivity of 4126 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4124 trivial. 0 not checked. [2023-12-20 04:03:13,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:03:13,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372796422] [2023-12-20 04:03:13,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372796422] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:03:13,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:03:13,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 04:03:13,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601298663] [2023-12-20 04:03:13,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:03:13,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 04:03:13,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:03:13,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 04:03:13,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-20 04:03:13,313 INFO L87 Difference]: Start difference. First operand 630 states and 900 transitions. Second operand has 10 states, 10 states have (on average 8.1) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (50), 5 states have call predecessors, (50), 2 states have return successors, (49), 2 states have call predecessors, (49), 3 states have call successors, (49) [2023-12-20 04:03:17,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:21,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:25,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:27,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:03:27,469 INFO L93 Difference]: Finished difference Result 642 states and 912 transitions. [2023-12-20 04:03:27,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 04:03:27,470 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (50), 5 states have call predecessors, (50), 2 states have return successors, (49), 2 states have call predecessors, (49), 3 states have call successors, (49) Word has length 356 [2023-12-20 04:03:27,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:03:27,474 INFO L225 Difference]: With dead ends: 642 [2023-12-20 04:03:27,474 INFO L226 Difference]: Without dead ends: 640 [2023-12-20 04:03:27,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2023-12-20 04:03:27,476 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 329 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 372 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 1251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-12-20 04:03:27,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 1043 Invalid, 1251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 876 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2023-12-20 04:03:27,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2023-12-20 04:03:27,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 634. [2023-12-20 04:03:27,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 401 states have (on average 1.2793017456359101) internal successors, (513), 422 states have internal predecessors, (513), 188 states have call successors, (188), 41 states have call predecessors, (188), 44 states have return successors, (202), 170 states have call predecessors, (202), 187 states have call successors, (202) [2023-12-20 04:03:27,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 903 transitions. [2023-12-20 04:03:27,581 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 903 transitions. Word has length 356 [2023-12-20 04:03:27,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:03:27,582 INFO L495 AbstractCegarLoop]: Abstraction has 634 states and 903 transitions. [2023-12-20 04:03:27,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (50), 5 states have call predecessors, (50), 2 states have return successors, (49), 2 states have call predecessors, (49), 3 states have call successors, (49) [2023-12-20 04:03:27,582 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 903 transitions. [2023-12-20 04:03:27,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2023-12-20 04:03:27,585 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:03:27,585 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 18, 6, 6, 6, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:27,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 04:03:27,585 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:03:27,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:03:27,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1898710131, now seen corresponding path program 1 times [2023-12-20 04:03:27,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:03:27,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113468388] [2023-12-20 04:03:27,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:03:27,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:03:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:29,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:03:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:29,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:03:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:29,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:29,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:03:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:03:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:03:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:03:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:03:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-20 04:03:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-20 04:03:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-20 04:03:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 04:03:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:03:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-20 04:03:30,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-20 04:03:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-20 04:03:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-20 04:03:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 04:03:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 04:03:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-20 04:03:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-20 04:03:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-20 04:03:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-20 04:03:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-20 04:03:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 04:03:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 04:03:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 04:03:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-20 04:03:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-20 04:03:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-20 04:03:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 04:03:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 04:03:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 04:03:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-20 04:03:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 04:03:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-20 04:03:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 04:03:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 04:03:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-20 04:03:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-20 04:03:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-20 04:03:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 04:03:30,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-20 04:03:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 04:03:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 04:03:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-20 04:03:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-20 04:03:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-20 04:03:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-20 04:03:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-12-20 04:03:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:30,201 INFO L134 CoverageAnalysis]: Checked inductivity of 4132 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4125 trivial. 0 not checked. [2023-12-20 04:03:30,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:03:30,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113468388] [2023-12-20 04:03:30,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113468388] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:03:30,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141738891] [2023-12-20 04:03:30,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:03:30,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:03:30,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:03:30,202 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:03:30,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-20 04:03:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:31,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 2504 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-20 04:03:31,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:03:31,613 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 04:03:36,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:03:36,708 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:03:36,708 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 04:03:37,731 INFO L349 Elim1Store]: treesize reduction 64, result has 54.9 percent of original size [2023-12-20 04:03:37,731 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 04:04:03,333 INFO L134 CoverageAnalysis]: Checked inductivity of 4132 backedges. 680 proven. 4 refuted. 0 times theorem prover too weak. 3448 trivial. 0 not checked. [2023-12-20 04:04:03,333 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:04:03,537 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 04:04:03,540 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 04:04:03,854 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 04:04:03,858 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 04:04:03,909 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 04:04:03,911 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 04:04:03,966 INFO L134 CoverageAnalysis]: Checked inductivity of 4132 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4124 trivial. 0 not checked. [2023-12-20 04:04:03,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141738891] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:04:03,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:04:03,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 9] total 34 [2023-12-20 04:04:03,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741246748] [2023-12-20 04:04:03,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:04:03,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-20 04:04:03,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:04:03,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-20 04:04:03,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=964, Unknown=4, NotChecked=0, Total=1122 [2023-12-20 04:04:03,968 INFO L87 Difference]: Start difference. First operand 634 states and 903 transitions. Second operand has 34 states, 32 states have (on average 4.9375) internal successors, (158), 31 states have internal predecessors, (158), 17 states have call successors, (110), 12 states have call predecessors, (110), 13 states have return successors, (109), 17 states have call predecessors, (109), 17 states have call successors, (109) [2023-12-20 04:04:08,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:12,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:16,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:20,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:24,154 WARN L539 Checker$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 04:04:28,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:32,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:36,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:40,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:44,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:48,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:52,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:56,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:00,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:04,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:08,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:12,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:16,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:05:20,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:24,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:28,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:32,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:05:36,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:40,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:44,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:05:44,068 INFO L93 Difference]: Finished difference Result 1231 states and 1762 transitions. [2023-12-20 04:05:44,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-20 04:05:44,069 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 4.9375) internal successors, (158), 31 states have internal predecessors, (158), 17 states have call successors, (110), 12 states have call predecessors, (110), 13 states have return successors, (109), 17 states have call predecessors, (109), 17 states have call successors, (109) Word has length 361 [2023-12-20 04:05:44,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:05:44,071 INFO L225 Difference]: With dead ends: 1231 [2023-12-20 04:05:44,071 INFO L226 Difference]: Without dead ends: 689 [2023-12-20 04:05:44,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 859 GetRequests, 803 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 32.6s TimeCoverageRelationStatistics Valid=524, Invalid=2228, Unknown=4, NotChecked=0, Total=2756 [2023-12-20 04:05:44,073 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 1084 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 2122 mSolverCounterSat, 1219 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 98.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 1814 SdHoareTripleChecker+Invalid, 3365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1219 IncrementalHoareTripleChecker+Valid, 2122 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 98.7s IncrementalHoareTripleChecker+Time [2023-12-20 04:05:44,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 1814 Invalid, 3365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1219 Valid, 2122 Invalid, 24 Unknown, 0 Unchecked, 98.7s Time] [2023-12-20 04:05:44,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2023-12-20 04:05:44,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 674. [2023-12-20 04:05:44,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 427 states have (on average 1.2763466042154568) internal successors, (545), 449 states have internal predecessors, (545), 195 states have call successors, (195), 45 states have call predecessors, (195), 51 states have return successors, (218), 179 states have call predecessors, (218), 194 states have call successors, (218) [2023-12-20 04:05:44,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 958 transitions. [2023-12-20 04:05:44,225 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 958 transitions. Word has length 361 [2023-12-20 04:05:44,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:05:44,225 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 958 transitions. [2023-12-20 04:05:44,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 4.9375) internal successors, (158), 31 states have internal predecessors, (158), 17 states have call successors, (110), 12 states have call predecessors, (110), 13 states have return successors, (109), 17 states have call predecessors, (109), 17 states have call successors, (109) [2023-12-20 04:05:44,226 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 958 transitions. [2023-12-20 04:05:44,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2023-12-20 04:05:44,229 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:05:44,229 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 18, 7, 7, 7, 7, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:05:44,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-20 04:05:44,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-12-20 04:05:44,436 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:05:44,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:05:44,437 INFO L85 PathProgramCache]: Analyzing trace with hash -928242003, now seen corresponding path program 1 times [2023-12-20 04:05:44,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:05:44,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149833230] [2023-12-20 04:05:44,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:05:44,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:05:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:45,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:05:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:45,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:05:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:45,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:45,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:05:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:05:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-20 04:05:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:05:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-20 04:05:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:05:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:05:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:05:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:05:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:05:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:05:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-20 04:05:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-20 04:05:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-20 04:05:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-20 04:05:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 04:05:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 04:05:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 04:05:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 04:05:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 04:05:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-20 04:05:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-20 04:05:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-20 04:05:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-20 04:05:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 04:05:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-20 04:05:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 04:05:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 04:05:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-20 04:05:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-20 04:05:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-20 04:05:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-20 04:05:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-20 04:05:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-20 04:05:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-20 04:05:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-20 04:05:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-20 04:05:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-12-20 04:05:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-12-20 04:05:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-20 04:05:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-12-20 04:05:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-20 04:05:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-20 04:05:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-12-20 04:05:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-12-20 04:05:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-12-20 04:05:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-20 04:05:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-12-20 04:05:46,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-12-20 04:05:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2023-12-20 04:05:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-20 04:05:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-12-20 04:05:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2023-12-20 04:05:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:46,174 INFO L134 CoverageAnalysis]: Checked inductivity of 4765 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 4733 trivial. 0 not checked. [2023-12-20 04:05:46,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:05:46,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149833230] [2023-12-20 04:05:46,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149833230] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:05:46,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542218231] [2023-12-20 04:05:46,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:05:46,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:05:46,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:05:46,175 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:05:46,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-20 04:05:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:47,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 3034 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-20 04:05:47,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:05:47,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-20 04:05:47,717 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 5 treesize of output 3 [2023-12-20 04:05:47,740 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 11 treesize of output 7 [2023-12-20 04:05:47,745 INFO L134 CoverageAnalysis]: Checked inductivity of 4765 backedges. 610 proven. 15 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2023-12-20 04:05:47,746 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:05:47,881 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 12 treesize of output 8 [2023-12-20 04:05:47,958 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 28 treesize of output 26 [2023-12-20 04:05:48,053 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 28 treesize of output 26 [2023-12-20 04:05:48,121 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 28 treesize of output 26 [2023-12-20 04:05:48,241 INFO L134 CoverageAnalysis]: Checked inductivity of 4765 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 4730 trivial. 0 not checked. [2023-12-20 04:05:48,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542218231] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:05:48,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:05:48,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 30 [2023-12-20 04:05:48,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629480631] [2023-12-20 04:05:48,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:05:48,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-20 04:05:48,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:05:48,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-20 04:05:48,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=755, Unknown=0, NotChecked=0, Total=870 [2023-12-20 04:05:48,244 INFO L87 Difference]: Start difference. First operand 674 states and 958 transitions. Second operand has 30 states, 28 states have (on average 6.678571428571429) internal successors, (187), 26 states have internal predecessors, (187), 19 states have call successors, (126), 9 states have call predecessors, (126), 12 states have return successors, (125), 16 states have call predecessors, (125), 19 states have call successors, (125) [2023-12-20 04:05:52,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:56,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:00,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:04,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:08,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:12,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:16,415 WARN L539 Checker$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 04:06:20,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:24,437 WARN L539 Checker$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 04:06:28,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:32,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:36,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:40,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:44,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:48,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:52,533 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 04:07:01,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:07:01,478 INFO L93 Difference]: Finished difference Result 2076 states and 2970 transitions. [2023-12-20 04:07:01,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-12-20 04:07:01,480 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 6.678571428571429) internal successors, (187), 26 states have internal predecessors, (187), 19 states have call successors, (126), 9 states have call predecessors, (126), 12 states have return successors, (125), 16 states have call predecessors, (125), 19 states have call successors, (125) Word has length 413 [2023-12-20 04:07:01,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:07:01,486 INFO L225 Difference]: With dead ends: 2076 [2023-12-20 04:07:01,486 INFO L226 Difference]: Without dead ends: 1127 [2023-12-20 04:07:01,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1038 GetRequests, 952 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2017 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1256, Invalid=6400, Unknown=0, NotChecked=0, Total=7656 [2023-12-20 04:07:01,490 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 1208 mSDsluCounter, 3732 mSDsCounter, 0 mSdLazyCounter, 4917 mSolverCounterSat, 1120 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 4063 SdHoareTripleChecker+Invalid, 6053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1120 IncrementalHoareTripleChecker+Valid, 4917 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.3s IncrementalHoareTripleChecker+Time [2023-12-20 04:07:01,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1261 Valid, 4063 Invalid, 6053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1120 Valid, 4917 Invalid, 16 Unknown, 0 Unchecked, 68.3s Time] [2023-12-20 04:07:01,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2023-12-20 04:07:01,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 979. [2023-12-20 04:07:01,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 600 states have (on average 1.2333333333333334) internal successors, (740), 636 states have internal predecessors, (740), 308 states have call successors, (308), 66 states have call predecessors, (308), 70 states have return successors, (337), 276 states have call predecessors, (337), 307 states have call successors, (337) [2023-12-20 04:07:01,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1385 transitions. [2023-12-20 04:07:01,699 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1385 transitions. Word has length 413 [2023-12-20 04:07:01,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:07:01,699 INFO L495 AbstractCegarLoop]: Abstraction has 979 states and 1385 transitions. [2023-12-20 04:07:01,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 6.678571428571429) internal successors, (187), 26 states have internal predecessors, (187), 19 states have call successors, (126), 9 states have call predecessors, (126), 12 states have return successors, (125), 16 states have call predecessors, (125), 19 states have call successors, (125) [2023-12-20 04:07:01,700 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1385 transitions. [2023-12-20 04:07:01,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2023-12-20 04:07:01,703 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:07:01,703 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 18, 6, 6, 6, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:07:01,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-20 04:07:01,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-12-20 04:07:01,912 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:07:01,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:07:01,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1021940679, now seen corresponding path program 1 times [2023-12-20 04:07:01,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:07:01,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739702677] [2023-12-20 04:07:01,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:07:01,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:07:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:03,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:07:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:07:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:04,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:07:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:07:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:07:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:07:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:07:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 04:07:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 04:07:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-20 04:07:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-20 04:07:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-20 04:07:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-20 04:07:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 04:07:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-20 04:07:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-20 04:07:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-20 04:07:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-20 04:07:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-20 04:07:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-20 04:07:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-20 04:07:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-20 04:07:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-20 04:07:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-20 04:07:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-20 04:07:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 04:07:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-20 04:07:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-20 04:07:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-20 04:07:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 04:07:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-20 04:07:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 04:07:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-20 04:07:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-20 04:07:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-20 04:07:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-20 04:07:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-20 04:07:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-12-20 04:07:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-20 04:07:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-12-20 04:07:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2023-12-20 04:07:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-20 04:07:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-20 04:07:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 04:07:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-20 04:07:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-12-20 04:07:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-12-20 04:07:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-12-20 04:07:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-20 04:07:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-12-20 04:07:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-12-20 04:07:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:04,421 INFO L134 CoverageAnalysis]: Checked inductivity of 4328 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 4318 trivial. 0 not checked. [2023-12-20 04:07:04,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:07:04,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739702677] [2023-12-20 04:07:04,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739702677] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:07:04,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699726412] [2023-12-20 04:07:04,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:07:04,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:07:04,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:07:04,423 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:07:04,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-20 04:07:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:05,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 2667 conjuncts, 58 conjunts are in the unsatisfiable core [2023-12-20 04:07:05,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:07:06,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-20 04:07:06,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:07:06,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 21 treesize of output 15 [2023-12-20 04:07:06,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:07:06,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 22 treesize of output 13 [2023-12-20 04:07:06,839 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 5 treesize of output 3 [2023-12-20 04:07:06,905 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 11 treesize of output 7 [2023-12-20 04:07:06,911 INFO L134 CoverageAnalysis]: Checked inductivity of 4328 backedges. 825 proven. 55 refuted. 0 times theorem prover too weak. 3448 trivial. 0 not checked. [2023-12-20 04:07:06,911 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:07:07,111 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 12 treesize of output 8 [2023-12-20 04:07:07,313 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 162 treesize of output 158 [2023-12-20 04:07:07,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699726412] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:07:07,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 04:07:07,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18] total 33 [2023-12-20 04:07:07,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883315884] [2023-12-20 04:07:07,659 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 04:07:07,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-20 04:07:07,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:07:07,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-20 04:07:07,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1650, Unknown=0, NotChecked=0, Total=1806 [2023-12-20 04:07:07,660 INFO L87 Difference]: Start difference. First operand 979 states and 1385 transitions. Second operand has 33 states, 32 states have (on average 4.78125) internal successors, (153), 30 states have internal predecessors, (153), 18 states have call successors, (108), 11 states have call predecessors, (108), 14 states have return successors, (107), 16 states have call predecessors, (107), 18 states have call successors, (107) [2023-12-20 04:07:11,871 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 04:07:15,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:19,896 WARN L539 Checker$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 04:07:23,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:27,933 WARN L539 Checker$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 04:07:31,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:35,970 WARN L539 Checker$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 04:07:39,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:43,992 WARN L539 Checker$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 04:07:47,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:52,011 WARN L539 Checker$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 04:07:56,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:00,052 WARN L539 Checker$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 04:08:04,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:08,101 WARN L539 Checker$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 04:08:12,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:16,155 WARN L539 Checker$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 04:08:20,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:24,172 WARN L539 Checker$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 04:08:28,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:32,193 WARN L539 Checker$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 04:08:36,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:40,211 WARN L539 Checker$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 04:08:44,234 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 04:08:59,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:08:59,651 INFO L93 Difference]: Finished difference Result 2959 states and 4175 transitions. [2023-12-20 04:08:59,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-12-20 04:08:59,652 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 4.78125) internal successors, (153), 30 states have internal predecessors, (153), 18 states have call successors, (108), 11 states have call predecessors, (108), 14 states have return successors, (107), 16 states have call predecessors, (107), 18 states have call successors, (107) Word has length 380 [2023-12-20 04:08:59,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:08:59,662 INFO L225 Difference]: With dead ends: 2959 [2023-12-20 04:08:59,662 INFO L226 Difference]: Without dead ends: 2127 [2023-12-20 04:08:59,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 884 GetRequests, 783 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2543 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=1368, Invalid=9138, Unknown=0, NotChecked=0, Total=10506 [2023-12-20 04:08:59,665 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 2473 mSDsluCounter, 5291 mSDsCounter, 0 mSdLazyCounter, 9719 mSolverCounterSat, 3356 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2565 SdHoareTripleChecker+Valid, 5756 SdHoareTripleChecker+Invalid, 13099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3356 IncrementalHoareTripleChecker+Valid, 9719 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105.6s IncrementalHoareTripleChecker+Time [2023-12-20 04:08:59,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2565 Valid, 5756 Invalid, 13099 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3356 Valid, 9719 Invalid, 24 Unknown, 0 Unchecked, 105.6s Time] [2023-12-20 04:08:59,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2127 states. [2023-12-20 04:08:59,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2127 to 1348. [2023-12-20 04:08:59,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 816 states have (on average 1.2095588235294117) internal successors, (987), 862 states have internal predecessors, (987), 429 states have call successors, (429), 92 states have call predecessors, (429), 102 states have return successors, (474), 393 states have call predecessors, (474), 428 states have call successors, (474) [2023-12-20 04:08:59,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1890 transitions. [2023-12-20 04:08:59,973 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1890 transitions. Word has length 380 [2023-12-20 04:08:59,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:08:59,973 INFO L495 AbstractCegarLoop]: Abstraction has 1348 states and 1890 transitions. [2023-12-20 04:08:59,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 4.78125) internal successors, (153), 30 states have internal predecessors, (153), 18 states have call successors, (108), 11 states have call predecessors, (108), 14 states have return successors, (107), 16 states have call predecessors, (107), 18 states have call successors, (107) [2023-12-20 04:08:59,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1890 transitions. [2023-12-20 04:08:59,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2023-12-20 04:08:59,978 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:08:59,978 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 18, 6, 6, 6, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:08:59,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-20 04:09:00,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-12-20 04:09:00,184 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:09:00,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:09:00,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1004669971, now seen corresponding path program 1 times [2023-12-20 04:09:00,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:09:00,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015363090] [2023-12-20 04:09:00,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:09:00,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:09:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:01,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:09:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:09:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:09:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:09:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:09:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:09:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:09:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:09:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:09:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:09:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:09:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 04:09:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:09:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:09:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 04:09:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:09:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-20 04:09:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-20 04:09:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-20 04:09:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-20 04:09:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 04:09:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 04:09:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-20 04:09:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-20 04:09:02,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-20 04:09:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-20 04:09:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-20 04:09:02,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 04:09:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 04:09:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 04:09:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-20 04:09:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-20 04:09:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-20 04:09:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 04:09:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 04:09:02,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 04:09:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-20 04:09:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 04:09:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-20 04:09:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 04:09:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 04:09:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-20 04:09:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-20 04:09:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-20 04:09:02,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 04:09:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-20 04:09:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 04:09:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 04:09:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-20 04:09:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-20 04:09:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-20 04:09:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-20 04:09:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-12-20 04:09:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-12-20 04:09:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-12-20 04:09:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2023-12-20 04:09:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:02,511 INFO L134 CoverageAnalysis]: Checked inductivity of 4331 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 4318 trivial. 0 not checked. [2023-12-20 04:09:02,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:09:02,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015363090] [2023-12-20 04:09:02,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015363090] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:09:02,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446662376] [2023-12-20 04:09:02,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:09:02,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:09:02,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:09:02,513 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:09:02,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-20 04:09:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:03,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 2691 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-20 04:09:04,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:09:04,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-20 04:09:12,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:09:12,266 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:09:12,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 42 treesize of output 48 [2023-12-20 04:09:12,441 INFO L349 Elim1Store]: treesize reduction 48, result has 63.1 percent of original size [2023-12-20 04:09:12,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 38 treesize of output 106 [2023-12-20 04:09:13,547 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 5 treesize of output 3 [2023-12-20 04:09:13,575 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-20 04:09:13,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 25 treesize of output 21 [2023-12-20 04:09:13,581 INFO L134 CoverageAnalysis]: Checked inductivity of 4331 backedges. 824 proven. 51 refuted. 0 times theorem prover too weak. 3456 trivial. 0 not checked. [2023-12-20 04:09:13,582 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:09:13,652 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 12 treesize of output 8 [2023-12-20 04:09:13,770 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 56 treesize of output 54 [2023-12-20 04:09:14,090 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 28 treesize of output 26 [2023-12-20 04:09:14,168 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 28 treesize of output 26 [2023-12-20 04:09:14,307 INFO L134 CoverageAnalysis]: Checked inductivity of 4331 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 4316 trivial. 0 not checked. [2023-12-20 04:09:14,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446662376] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:09:14,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:09:14,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 13] total 36 [2023-12-20 04:09:14,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969178731] [2023-12-20 04:09:14,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:09:14,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-20 04:09:14,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:09:14,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-20 04:09:14,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=1113, Unknown=3, NotChecked=0, Total=1260 [2023-12-20 04:09:14,310 INFO L87 Difference]: Start difference. First operand 1348 states and 1890 transitions. Second operand has 36 states, 35 states have (on average 4.285714285714286) internal successors, (150), 31 states have internal predecessors, (150), 17 states have call successors, (114), 12 states have call predecessors, (114), 14 states have return successors, (110), 15 states have call predecessors, (110), 17 states have call successors, (110) [2023-12-20 04:09:18,527 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 04:09:22,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:26,558 WARN L539 Checker$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 04:09:30,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:34,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:38,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:42,615 WARN L539 Checker$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 04:09:46,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-20 04:09:50,642 WARN L539 Checker$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 04:09:54,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:58,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:10:02,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:10:06,677 WARN L539 Checker$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 04:10:10,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:10:14,702 WARN L539 Checker$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 04:10:18,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:10:22,722 WARN L539 Checker$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 04:10:26,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:10:30,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:10:34,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:10:38,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:10:42,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:10:46,826 WARN L539 Checker$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 04:10:50,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:10:56,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-20 04:11:01,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:11:03,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:11:04,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:11:06,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:11:08,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:11:15,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:11:17,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:11:21,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:11:23,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:11:26,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:11:30,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:11:30,267 INFO L93 Difference]: Finished difference Result 2295 states and 3202 transitions. [2023-12-20 04:11:30,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-20 04:11:30,268 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 4.285714285714286) internal successors, (150), 31 states have internal predecessors, (150), 17 states have call successors, (114), 12 states have call predecessors, (114), 14 states have return successors, (110), 15 states have call predecessors, (110), 17 states have call successors, (110) Word has length 379 [2023-12-20 04:11:30,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:11:30,271 INFO L225 Difference]: With dead ends: 2295 [2023-12-20 04:11:30,271 INFO L226 Difference]: Without dead ends: 1013 [2023-12-20 04:11:30,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 923 GetRequests, 845 SyntacticMatches, 4 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1336 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=945, Invalid=4751, Unknown=4, NotChecked=0, Total=5700 [2023-12-20 04:11:30,274 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 1135 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 5462 mSolverCounterSat, 1223 mSolverCounterUnsat, 35 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 129.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 3671 SdHoareTripleChecker+Invalid, 6720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1223 IncrementalHoareTripleChecker+Valid, 5462 IncrementalHoareTripleChecker+Invalid, 35 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 130.6s IncrementalHoareTripleChecker+Time [2023-12-20 04:11:30,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1135 Valid, 3671 Invalid, 6720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1223 Valid, 5462 Invalid, 35 Unknown, 0 Unchecked, 130.6s Time] [2023-12-20 04:11:30,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2023-12-20 04:11:30,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 676. [2023-12-20 04:11:30,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 413 states have (on average 1.1767554479418887) internal successors, (486), 432 states have internal predecessors, (486), 207 states have call successors, (207), 49 states have call predecessors, (207), 55 states have return successors, (214), 194 states have call predecessors, (214), 206 states have call successors, (214) [2023-12-20 04:11:30,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 907 transitions. [2023-12-20 04:11:30,464 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 907 transitions. Word has length 379 [2023-12-20 04:11:30,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:11:30,464 INFO L495 AbstractCegarLoop]: Abstraction has 676 states and 907 transitions. [2023-12-20 04:11:30,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 4.285714285714286) internal successors, (150), 31 states have internal predecessors, (150), 17 states have call successors, (114), 12 states have call predecessors, (114), 14 states have return successors, (110), 15 states have call predecessors, (110), 17 states have call successors, (110) [2023-12-20 04:11:30,464 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 907 transitions. [2023-12-20 04:11:30,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2023-12-20 04:11:30,467 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:11:30,467 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 18, 6, 6, 6, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:30,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-20 04:11:30,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-12-20 04:11:30,676 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:11:30,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:11:30,677 INFO L85 PathProgramCache]: Analyzing trace with hash 597532709, now seen corresponding path program 1 times [2023-12-20 04:11:30,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:11:30,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544753933] [2023-12-20 04:11:30,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:11:30,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:11:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:11:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:11:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:11:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:11:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:11:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:11:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:11:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:32,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 04:11:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 04:11:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-20 04:11:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-20 04:11:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-20 04:11:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-20 04:11:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 04:11:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-20 04:11:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-20 04:11:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-20 04:11:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-20 04:11:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-20 04:11:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-20 04:11:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-20 04:11:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-20 04:11:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-20 04:11:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-20 04:11:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-20 04:11:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 04:11:32,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-20 04:11:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-20 04:11:32,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-20 04:11:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 04:11:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-20 04:11:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 04:11:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-20 04:11:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-20 04:11:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-20 04:11:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-20 04:11:32,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-20 04:11:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-12-20 04:11:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-20 04:11:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-12-20 04:11:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2023-12-20 04:11:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-20 04:11:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-20 04:11:32,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 04:11:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-20 04:11:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-12-20 04:11:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-12-20 04:11:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-12-20 04:11:32,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-20 04:11:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-12-20 04:11:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-12-20 04:11:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:32,491 INFO L134 CoverageAnalysis]: Checked inductivity of 4328 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 4309 trivial. 0 not checked. [2023-12-20 04:11:32,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:11:32,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544753933] [2023-12-20 04:11:32,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544753933] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:11:32,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:11:32,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 04:11:32,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461438056] [2023-12-20 04:11:32,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:11:32,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 04:11:32,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:11:32,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 04:11:32,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-12-20 04:11:32,493 INFO L87 Difference]: Start difference. First operand 676 states and 907 transitions. Second operand has 12 states, 10 states have (on average 9.1) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (54), 5 states have call predecessors, (54), 3 states have return successors, (53), 6 states have call predecessors, (53), 5 states have call successors, (53) [2023-12-20 04:11:36,549 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 04:11:39,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:11:39,059 INFO L93 Difference]: Finished difference Result 1755 states and 2419 transitions. [2023-12-20 04:11:39,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 04:11:39,060 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 9.1) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (54), 5 states have call predecessors, (54), 3 states have return successors, (53), 6 states have call predecessors, (53), 5 states have call successors, (53) Word has length 380 [2023-12-20 04:11:39,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:11:39,065 INFO L225 Difference]: With dead ends: 1755 [2023-12-20 04:11:39,065 INFO L226 Difference]: Without dead ends: 1183 [2023-12-20 04:11:39,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2023-12-20 04:11:39,068 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 683 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 1217 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1217 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-12-20 04:11:39,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 580 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1217 Valid, 1069 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2023-12-20 04:11:39,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2023-12-20 04:11:39,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 693. [2023-12-20 04:11:39,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 427 states have (on average 1.1686182669789227) internal successors, (499), 447 states have internal predecessors, (499), 207 states have call successors, (207), 49 states have call predecessors, (207), 58 states have return successors, (218), 196 states have call predecessors, (218), 206 states have call successors, (218) [2023-12-20 04:11:39,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 924 transitions. [2023-12-20 04:11:39,292 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 924 transitions. Word has length 380 [2023-12-20 04:11:39,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:11:39,293 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 924 transitions. [2023-12-20 04:11:39,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 9.1) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (54), 5 states have call predecessors, (54), 3 states have return successors, (53), 6 states have call predecessors, (53), 5 states have call successors, (53) [2023-12-20 04:11:39,293 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 924 transitions. [2023-12-20 04:11:39,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2023-12-20 04:11:39,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:11:39,296 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 18, 6, 6, 6, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:39,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-20 04:11:39,296 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:11:39,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:11:39,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1914298467, now seen corresponding path program 1 times [2023-12-20 04:11:39,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:11:39,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170344160] [2023-12-20 04:11:39,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:11:39,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:11:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:11:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:11:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:11:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:11:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:11:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:11:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:11:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 04:11:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 04:11:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-20 04:11:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-20 04:11:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-20 04:11:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-20 04:11:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 04:11:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-20 04:11:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-20 04:11:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-20 04:11:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-20 04:11:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-20 04:11:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-20 04:11:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-20 04:11:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-20 04:11:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-20 04:11:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-20 04:11:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-20 04:11:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 04:11:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-20 04:11:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-20 04:11:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-20 04:11:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 04:11:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-20 04:11:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 04:11:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-20 04:11:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-20 04:11:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-20 04:11:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-20 04:11:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-20 04:11:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-12-20 04:11:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-20 04:11:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-12-20 04:11:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2023-12-20 04:11:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-20 04:11:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-20 04:11:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 04:11:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-20 04:11:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-12-20 04:11:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-12-20 04:11:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-12-20 04:11:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-20 04:11:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-12-20 04:11:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-12-20 04:11:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:41,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4328 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 4318 trivial. 0 not checked. [2023-12-20 04:11:41,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:11:41,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170344160] [2023-12-20 04:11:41,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170344160] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:11:41,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416334834] [2023-12-20 04:11:41,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:11:41,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:11:41,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:11:41,684 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:11:41,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-20 04:11:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:49,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 2653 conjuncts, 104 conjunts are in the unsatisfiable core [2023-12-20 04:11:49,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:11:50,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 76 [2023-12-20 04:11:50,210 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:11:50,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 73 treesize of output 49 [2023-12-20 04:11:51,113 INFO L349 Elim1Store]: treesize reduction 16, result has 84.8 percent of original size [2023-12-20 04:11:51,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 91 treesize of output 143 [2023-12-20 04:11:51,479 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-20 04:12:12,466 WARN L293 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 760 DAG size of output: 295 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-20 04:12:12,467 INFO L349 Elim1Store]: treesize reduction 2520, result has 25.9 percent of original size [2023-12-20 04:12:12,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 25 select indices, 25 select index equivalence classes, 0 disjoint index pairs (out of 300 index pairs), introduced 25 new quantified variables, introduced 300 case distinctions, treesize of input 387 treesize of output 1087 [2023-12-20 04:12:12,610 INFO L349 Elim1Store]: treesize reduction 53, result has 49.5 percent of original size [2023-12-20 04:12:12,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 84 treesize of output 79 [2023-12-20 04:12:12,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4328 backedges. 1914 proven. 539 refuted. 0 times theorem prover too weak. 1875 trivial. 0 not checked. [2023-12-20 04:12:12,765 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:12:15,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416334834] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:12:15,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 04:12:15,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 48] total 62 [2023-12-20 04:12:15,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209905170] [2023-12-20 04:12:15,734 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 04:12:15,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2023-12-20 04:12:15,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:12:15,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2023-12-20 04:12:15,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=592, Invalid=6050, Unknown=0, NotChecked=0, Total=6642 [2023-12-20 04:12:15,736 INFO L87 Difference]: Start difference. First operand 693 states and 924 transitions. Second operand has 62 states, 57 states have (on average 3.9473684210526314) internal successors, (225), 51 states have internal predecessors, (225), 21 states have call successors, (107), 15 states have call predecessors, (107), 18 states have return successors, (106), 19 states have call predecessors, (106), 21 states have call successors, (106) [2023-12-20 04:12:20,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-20 04:12:24,712 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-20 04:12:24,712 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-20 04:12:24,857 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 04:12:25,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-20 04:12:25,913 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-20 04:12:25,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 779 GetRequests, 625 SyntacticMatches, 61 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4150 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=699, Invalid=8231, Unknown=0, NotChecked=0, Total=8930 [2023-12-20 04:12:25,929 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 32 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2023-12-20 04:12:25,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 153 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 509 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2023-12-20 04:12:25,930 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 04:12:25,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-20 04:12:25,930 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-20 04:12:25,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-20 04:12:25,934 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:12:25,937 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 04:12:25,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 04:12:25 BoogieIcfgContainer [2023-12-20 04:12:25,938 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 04:12:25,938 INFO L158 Benchmark]: Toolchain (without parser) took 838461.52ms. Allocated memory was 291.5MB in the beginning and 842.0MB in the end (delta: 550.5MB). Free memory was 239.1MB in the beginning and 328.0MB in the end (delta: -88.9MB). Peak memory consumption was 462.1MB. Max. memory is 8.0GB. [2023-12-20 04:12:25,939 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 208.7MB. Free memory is still 154.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 04:12:25,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 573.00ms. Allocated memory is still 291.5MB. Free memory was 238.6MB in the beginning and 209.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-12-20 04:12:25,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.50ms. Allocated memory is still 291.5MB. Free memory was 208.7MB in the beginning and 202.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-20 04:12:25,940 INFO L158 Benchmark]: Boogie Preprocessor took 104.07ms. Allocated memory is still 291.5MB. Free memory was 202.4MB in the beginning and 193.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-20 04:12:25,943 INFO L158 Benchmark]: RCFGBuilder took 4794.44ms. Allocated memory is still 291.5MB. Free memory was 193.5MB in the beginning and 187.0MB in the end (delta: 6.5MB). Peak memory consumption was 17.5MB. Max. memory is 8.0GB. [2023-12-20 04:12:25,943 INFO L158 Benchmark]: TraceAbstraction took 832924.06ms. Allocated memory was 291.5MB in the beginning and 842.0MB in the end (delta: 550.5MB). Free memory was 185.9MB in the beginning and 328.0MB in the end (delta: -142.1MB). Peak memory consumption was 407.9MB. Max. memory is 8.0GB. [2023-12-20 04:12:25,943 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 208.7MB. Free memory is still 154.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 573.00ms. Allocated memory is still 291.5MB. Free memory was 238.6MB in the beginning and 209.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 61.50ms. Allocated memory is still 291.5MB. Free memory was 208.7MB in the beginning and 202.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 104.07ms. Allocated memory is still 291.5MB. Free memory was 202.4MB in the beginning and 193.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 4794.44ms. Allocated memory is still 291.5MB. Free memory was 193.5MB in the beginning and 187.0MB in the end (delta: 6.5MB). Peak memory consumption was 17.5MB. Max. memory is 8.0GB. * TraceAbstraction took 832924.06ms. Allocated memory was 291.5MB in the beginning and 842.0MB in the end (delta: 550.5MB). Free memory was 185.9MB in the beginning and 328.0MB in the end (delta: -142.1MB). Peak memory consumption was 407.9MB. 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: 539]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 539). Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 173 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 832.9s, OverallIterations: 26, TraceHistogramMax: 47, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 699.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 160 mSolverCounterUnknown, 13724 SdHoareTripleChecker+Valid, 668.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13032 mSDsluCounter, 33629 SdHoareTripleChecker+Invalid, 662.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27585 mSDsCounter, 13522 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35966 IncrementalHoareTripleChecker+Invalid, 49649 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13522 mSolverCounterUnsat, 6044 mSDtfsCounter, 35966 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11817 GetRequests, 11002 SyntacticMatches, 76 SemanticMatches, 739 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13133 ImplicationChecksByTransitivity, 81.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1348occurred in iteration=23, InterpolantAutomatonStates: 460, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 25 MinimizatonAttempts, 2839 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.7s SsaConstructionTime, 12.9s SatisfiabilityAnalysisTime, 99.5s InterpolantComputationTime, 13294 NumberOfCodeBlocks, 12791 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 16660 ConstructedInterpolants, 287 QuantifiedInterpolants, 73919 SizeOfPredicates, 93 NumberOfNonLiveVariables, 29450 ConjunctsInSsa, 382 ConjunctsInUnsatCore, 50 InterpolantComputations, 15 PerfectInterpolantSequences, 191693/193593 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