/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_longer-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 03:58:45,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 03:58:45,849 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 03:58:45,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 03:58:45,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 03:58:45,866 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 03:58:45,867 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 03:58:45,867 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 03:58:45,868 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 03:58:45,871 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 03:58:45,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 03:58:45,872 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 03:58:45,872 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 03:58:45,872 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 03:58:45,872 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 03:58:45,873 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 03:58:45,873 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 03:58:45,873 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 03:58:45,873 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 03:58:45,873 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 03:58:45,874 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 03:58:45,888 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 03:58:45,888 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 03:58:45,889 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 03:58:45,889 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 03:58:45,889 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 03:58:45,889 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 03:58:45,889 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 03:58:45,889 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 03:58:45,890 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 03:58:45,890 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 03:58:45,890 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 03:58:45,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:58:45,890 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 03:58:45,890 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 03:58:45,891 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 03:58:45,891 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 03:58:45,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 03:58:45,891 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 03:58:45,891 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 03:58:45,891 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 03:58:45,892 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 03:58:45,892 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 03:58:45,892 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 03:58:46,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 03:58:46,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 03:58:46,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 03:58:46,119 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 03:58:46,135 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 03:58:46,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_fib_longer-2.i [2023-12-20 03:58:47,191 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 03:58:47,375 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 03:58:47,375 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_fib_longer-2.i [2023-12-20 03:58:47,387 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9f023204/1ef3c6adeddf40098e1e0cbe4372234d/FLAGfd3b27b4d [2023-12-20 03:58:47,409 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9f023204/1ef3c6adeddf40098e1e0cbe4372234d [2023-12-20 03:58:47,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 03:58:47,413 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 03:58:47,414 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 03:58:47,414 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 03:58:47,418 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 03:58:47,419 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:58:47" (1/1) ... [2023-12-20 03:58:47,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aa82c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:47, skipping insertion in model container [2023-12-20 03:58:47,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:58:47" (1/1) ... [2023-12-20 03:58:47,462 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 03:58:47,757 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_longer-2.i[23464,23477] [2023-12-20 03:58:47,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:58:47,871 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 03:58:47,889 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_longer-2.i[23464,23477] [2023-12-20 03:58:47,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:58:47,957 INFO L206 MainTranslator]: Completed translation [2023-12-20 03:58:47,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:47 WrapperNode [2023-12-20 03:58:47,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 03:58:47,958 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 03:58:47,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 03:58:47,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 03:58:47,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:47" (1/1) ... [2023-12-20 03:58:47,981 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:47" (1/1) ... [2023-12-20 03:58:48,049 INFO L138 Inliner]: procedures = 144, calls = 393, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 732 [2023-12-20 03:58:48,050 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 03:58:48,050 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 03:58:48,050 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 03:58:48,050 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 03:58:48,058 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:47" (1/1) ... [2023-12-20 03:58:48,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:47" (1/1) ... [2023-12-20 03:58:48,065 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:47" (1/1) ... [2023-12-20 03:58:48,119 INFO L175 MemorySlicer]: Split 260 memory accesses to 14 slices as follows [2, 8, 8, 42, 37, 25, 25, 11, 13, 2, 37, 0, 37, 13]. 16 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 3, 3, 0, 0, 7, 7, 7, 0, 0, 0, 0, 0, 0]. The 71 writes are split as follows [0, 2, 2, 24, 19, 8, 8, 2, 1, 2, 1, 0, 1, 1]. [2023-12-20 03:58:48,119 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:47" (1/1) ... [2023-12-20 03:58:48,119 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:47" (1/1) ... [2023-12-20 03:58:48,164 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:47" (1/1) ... [2023-12-20 03:58:48,176 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:47" (1/1) ... [2023-12-20 03:58:48,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:47" (1/1) ... [2023-12-20 03:58:48,186 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:47" (1/1) ... [2023-12-20 03:58:48,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 03:58:48,205 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 03:58:48,205 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 03:58:48,205 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 03:58:48,206 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:47" (1/1) ... [2023-12-20 03:58:48,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:58:48,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:58:48,246 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 03:58:48,268 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 03:58:48,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-20 03:58:48,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-20 03:58:48,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-20 03:58:48,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-20 03:58:48,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-20 03:58:48,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-20 03:58:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-20 03:58:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-20 03:58:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-20 03:58:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-20 03:58:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-20 03:58:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-20 03:58:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-20 03:58:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-20 03:58:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-20 03:58:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-20 03:58:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-20 03:58:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-20 03:58:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-20 03:58:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-20 03:58:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-20 03:58:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-20 03:58:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-20 03:58:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-20 03:58:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-20 03:58:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-20 03:58:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-20 03:58:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-20 03:58:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 03:58:48,280 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 03:58:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 03:58:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-20 03:58:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-20 03:58:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-20 03:58:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-20 03:58:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-12-20 03:58:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-12-20 03:58:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-12-20 03:58:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-12-20 03:58:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-12-20 03:58:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-12-20 03:58:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-12-20 03:58:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-12-20 03:58:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-12-20 03:58:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-12-20 03:58:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-12-20 03:58:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-12-20 03:58:48,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-12-20 03:58:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-20 03:58:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-20 03:58:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-20 03:58:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-12-20 03:58:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-12-20 03:58:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-12-20 03:58:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-12-20 03:58:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-12-20 03:58:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-12-20 03:58:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-12-20 03:58:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-12-20 03:58:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-12-20 03:58:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-12-20 03:58:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-12-20 03:58:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-20 03:58:48,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-20 03:58:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-20 03:58:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-12-20 03:58:48,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-12-20 03:58:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 03:58:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-20 03:58:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-20 03:58:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-20 03:58:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-20 03:58:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-20 03:58:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-20 03:58:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-20 03:58:48,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-20 03:58:48,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-20 03:58:48,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-20 03:58:48,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-20 03:58:48,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-20 03:58:48,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-20 03:58:48,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 03:58:48,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 03:58:48,519 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 03:58:48,521 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 03:58:48,774 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 03:58:48,774 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 03:58:48,774 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 03:58:48,774 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 03:58:48,774 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L733: SUMMARY for call __CS_cs(); srcloc: null [2023-12-20 03:58:48,774 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L733-1: 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 03:58:48,774 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L733-1: 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 03:58:53,098 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 03:58:53,127 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 03:58:53,127 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-20 03:58:53,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:58:53 BoogieIcfgContainer [2023-12-20 03:58:53,128 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 03:58:53,129 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 03:58:53,129 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 03:58:53,132 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 03:58:53,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 03:58:47" (1/3) ... [2023-12-20 03:58:53,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9ad580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:58:53, skipping insertion in model container [2023-12-20 03:58:53,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:58:47" (2/3) ... [2023-12-20 03:58:53,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9ad580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:58:53, skipping insertion in model container [2023-12-20 03:58:53,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:58:53" (3/3) ... [2023-12-20 03:58:53,134 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_fib_longer-2.i [2023-12-20 03:58:53,146 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 03:58:53,147 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 03:58:53,181 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 03:58:53,185 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;@7198c4b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 03:58:53,186 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 03:58:53,189 INFO L276 IsEmpty]: Start isEmpty. Operand has 179 states, 106 states have (on average 1.349056603773585) internal successors, (143), 107 states have internal predecessors, (143), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-20 03:58:53,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2023-12-20 03:58:53,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:58:53,254 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:53,255 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:58:53,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:58:53,259 INFO L85 PathProgramCache]: Analyzing trace with hash 855262826, now seen corresponding path program 1 times [2023-12-20 03:58:53,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:58:53,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630533086] [2023-12-20 03:58:53,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:53,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:58:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:53,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-20 03:58:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:53,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 03:58:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:53,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 03:58:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:53,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 03:58:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:53,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 03:58:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:53,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-20 03:58:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:53,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 03:58:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:53,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 03:58:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:53,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 03:58:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 03:58:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 03:58:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 03:58:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-20 03:58:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-20 03:58:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-20 03:58:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 03:58:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 03:58:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 03:58:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 03:58:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 03:58:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 03:58:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 03:58:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 03:58:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 03:58:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 03:58:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-20 03:58:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-20 03:58:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-20 03:58:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-20 03:58:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 03:58:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 03:58:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 03:58:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 03:58:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 03:58:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-20 03:58:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-20 03:58:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-20 03:58:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-20 03:58:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 03:58:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-20 03:58:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 03:58:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 03:58:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-20 03:58:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-20 03:58:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-20 03:58:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-20 03:58:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-20 03:58:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-20 03:58:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:54,238 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-12-20 03:58:54,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:58:54,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630533086] [2023-12-20 03:58:54,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630533086] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:58:54,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:58:54,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:58:54,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564928926] [2023-12-20 03:58:54,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:58:54,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:58:54,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:58:54,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:58:54,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:58:54,279 INFO L87 Difference]: Start difference. First operand has 179 states, 106 states have (on average 1.349056603773585) internal successors, (143), 107 states have internal predecessors, (143), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-12-20 03:58:58,338 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 03:58:58,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:58:58,401 INFO L93 Difference]: Finished difference Result 360 states and 625 transitions. [2023-12-20 03:58:58,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:58:58,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 299 [2023-12-20 03:58:58,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:58:58,413 INFO L225 Difference]: With dead ends: 360 [2023-12-20 03:58:58,413 INFO L226 Difference]: Without dead ends: 180 [2023-12-20 03:58:58,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 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 03:58:58,419 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 3 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 524 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 03:58:58,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 524 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-12-20 03:58:58,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-20 03:58:58,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 178. [2023-12-20 03:58:58,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 106 states have (on average 1.2830188679245282) internal successors, (136), 106 states have internal predecessors, (136), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-20 03:58:58,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 270 transitions. [2023-12-20 03:58:58,468 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 270 transitions. Word has length 299 [2023-12-20 03:58:58,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:58:58,468 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 270 transitions. [2023-12-20 03:58:58,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-12-20 03:58:58,469 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 270 transitions. [2023-12-20 03:58:58,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2023-12-20 03:58:58,473 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:58:58,473 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:58,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 03:58:58,474 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:58:58,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:58:58,474 INFO L85 PathProgramCache]: Analyzing trace with hash -362326326, now seen corresponding path program 1 times [2023-12-20 03:58:58,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:58:58,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303984358] [2023-12-20 03:58:58,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:58,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:58:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 03:58:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 03:58:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 03:58:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 03:58:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-20 03:58:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 03:58:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 03:58:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-20 03:58:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-20 03:58:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-20 03:58:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-20 03:58:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-20 03:58:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 03:58:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 03:58:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-20 03:58:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-20 03:58:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 03:58:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-20 03:58:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:58,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-20 03:58:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-20 03:58:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-20 03:58:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-20 03:58:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-20 03:58:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 03:58:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-20 03:58:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-20 03:58:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-20 03:58:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-20 03:58:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-20 03:58:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-20 03:58:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-20 03:58:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-20 03:58:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-20 03:58:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-20 03:58:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-20 03:58:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 03:58:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-20 03:58:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-20 03:58:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-20 03:58:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 03:58:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-20 03:58:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 03:58:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-20 03:58:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-20 03:58:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-20 03:58:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-20 03:58:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-20 03:58:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-12-20 03:58:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,124 INFO L134 CoverageAnalysis]: Checked inductivity of 4513 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-12-20 03:58:59,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:58:59,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303984358] [2023-12-20 03:58:59,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303984358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:58:59,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:58:59,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:58:59,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167858966] [2023-12-20 03:58:59,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:58:59,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:58:59,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:58:59,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:58:59,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:58:59,132 INFO L87 Difference]: Start difference. First operand 178 states and 270 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-12-20 03:58:59,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:58:59,206 INFO L93 Difference]: Finished difference Result 355 states and 540 transitions. [2023-12-20 03:58:59,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:58:59,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 302 [2023-12-20 03:58:59,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:58:59,217 INFO L225 Difference]: With dead ends: 355 [2023-12-20 03:58:59,217 INFO L226 Difference]: Without dead ends: 179 [2023-12-20 03:58:59,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 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 03:58:59,221 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 524 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 03:58:59,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 524 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:58:59,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-12-20 03:58:59,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2023-12-20 03:58:59,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 107 states have (on average 1.280373831775701) internal successors, (137), 107 states have internal predecessors, (137), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-20 03:58:59,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 271 transitions. [2023-12-20 03:58:59,251 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 271 transitions. Word has length 302 [2023-12-20 03:58:59,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:58:59,253 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 271 transitions. [2023-12-20 03:58:59,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-12-20 03:58:59,253 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 271 transitions. [2023-12-20 03:58:59,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2023-12-20 03:58:59,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:58:59,259 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:59,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 03:58:59,260 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:58:59,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:58:59,260 INFO L85 PathProgramCache]: Analyzing trace with hash -286844739, now seen corresponding path program 1 times [2023-12-20 03:58:59,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:58:59,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700016517] [2023-12-20 03:58:59,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:59,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:58:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 03:58:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 03:58:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 03:58:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 03:58:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 03:58:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-20 03:58:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-20 03:58:59,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-20 03:58:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-20 03:58:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-20 03:58:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 03:58:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 03:58:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 03:58:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-20 03:58:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-20 03:58:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-20 03:58:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-20 03:58:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-20 03:58:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-20 03:58:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 03:58:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-20 03:58:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-20 03:58:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-20 03:58:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-20 03:58:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-20 03:58:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-20 03:58:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-20 03:58:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-20 03:58:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-20 03:58:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-20 03:58:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 03:58:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-20 03:58:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-20 03:58:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-20 03:58:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-20 03:58:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-20 03:58:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-20 03:58:59,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-20 03:58:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-20 03:58:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-20 03:58:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-20 03:58:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-20 03:58:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-20 03:58:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-20 03:58:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-20 03:58:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-20 03:58:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-20 03:58:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-20 03:58:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:58:59,787 INFO L134 CoverageAnalysis]: Checked inductivity of 4514 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-12-20 03:58:59,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:58:59,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700016517] [2023-12-20 03:58:59,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700016517] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:58:59,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811310698] [2023-12-20 03:58:59,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:58:59,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:58:59,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:58:59,790 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 03:58:59,795 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 03:59:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:00,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 1491 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 03:59:00,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:59:00,494 INFO L134 CoverageAnalysis]: Checked inductivity of 4514 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-12-20 03:59:00,495 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:59:00,607 INFO L134 CoverageAnalysis]: Checked inductivity of 4514 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-12-20 03:59:00,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811310698] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:59:00,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:59:00,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-12-20 03:59:00,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750895634] [2023-12-20 03:59:00,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:59:00,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 03:59:00,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:00,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 03:59:00,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:59:00,610 INFO L87 Difference]: Start difference. First operand 179 states and 271 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2023-12-20 03:59:00,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:00,664 INFO L93 Difference]: Finished difference Result 358 states and 544 transitions. [2023-12-20 03:59:00,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:59:00,665 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 303 [2023-12-20 03:59:00,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:00,666 INFO L225 Difference]: With dead ends: 358 [2023-12-20 03:59:00,666 INFO L226 Difference]: Without dead ends: 181 [2023-12-20 03:59:00,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 699 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 03:59:00,667 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:00,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 785 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:59:00,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-20 03:59:00,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2023-12-20 03:59:00,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 109 states have (on average 1.275229357798165) internal successors, (139), 109 states have internal predecessors, (139), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-20 03:59:00,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 273 transitions. [2023-12-20 03:59:00,678 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 273 transitions. Word has length 303 [2023-12-20 03:59:00,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:00,678 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 273 transitions. [2023-12-20 03:59:00,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2023-12-20 03:59:00,678 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 273 transitions. [2023-12-20 03:59:00,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2023-12-20 03:59:00,681 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:00,681 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 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, 1, 1, 1, 1] [2023-12-20 03:59:00,693 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 03:59:00,889 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 03:59:00,889 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:00,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:00,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1576445533, now seen corresponding path program 2 times [2023-12-20 03:59:00,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:00,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002296979] [2023-12-20 03:59:00,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:00,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 03:59:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 03:59:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 03:59:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 03:59:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-20 03:59:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 03:59:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 03:59:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 03:59:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 03:59:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 03:59:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 03:59:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-20 03:59:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-20 03:59:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-20 03:59:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 03:59:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 03:59:01,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 03:59:01,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 03:59:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 03:59:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 03:59:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 03:59:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 03:59:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 03:59:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 03:59:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-20 03:59:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-20 03:59:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-20 03:59:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-20 03:59:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 03:59:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 03:59:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 03:59:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 03:59:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 03:59:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-20 03:59:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-20 03:59:01,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-20 03:59:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-20 03:59:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 03:59:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-20 03:59:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 03:59:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 03:59:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-20 03:59:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-20 03:59:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-20 03:59:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-20 03:59:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-20 03:59:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-20 03:59:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-20 03:59:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:01,405 INFO L134 CoverageAnalysis]: Checked inductivity of 4519 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2023-12-20 03:59:01,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:01,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002296979] [2023-12-20 03:59:01,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002296979] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:59:01,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704338997] [2023-12-20 03:59:01,406 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-20 03:59:01,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:01,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:59:01,407 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 03:59:01,450 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 03:59:01,972 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-20 03:59:01,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-20 03:59:01,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 03:59:01,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:59:02,073 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 03:59:02,553 INFO L134 CoverageAnalysis]: Checked inductivity of 4519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4519 trivial. 0 not checked. [2023-12-20 03:59:02,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 03:59:02,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704338997] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:59:02,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 03:59:02,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 9 [2023-12-20 03:59:02,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803070611] [2023-12-20 03:59:02,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:59:02,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 03:59:02,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:02,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 03:59:02,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-20 03:59:02,556 INFO L87 Difference]: Start difference. First operand 181 states and 273 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-12-20 03:59:06,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:10,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:14,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:15,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:15,408 INFO L93 Difference]: Finished difference Result 680 states and 1042 transitions. [2023-12-20 03:59:15,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:59:15,408 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 305 [2023-12-20 03:59:15,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:15,412 INFO L225 Difference]: With dead ends: 680 [2023-12-20 03:59:15,412 INFO L226 Difference]: Without dead ends: 314 [2023-12-20 03:59:15,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:59:15,414 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 479 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 133 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:15,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 1065 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 330 Invalid, 3 Unknown, 0 Unchecked, 12.7s Time] [2023-12-20 03:59:15,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-12-20 03:59:15,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2023-12-20 03:59:15,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 199 states have (on average 1.3919597989949748) internal successors, (277), 199 states have internal predecessors, (277), 102 states have call successors, (102), 12 states have call predecessors, (102), 12 states have return successors, (107), 102 states have call predecessors, (107), 102 states have call successors, (107) [2023-12-20 03:59:15,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 486 transitions. [2023-12-20 03:59:15,436 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 486 transitions. Word has length 305 [2023-12-20 03:59:15,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:15,436 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 486 transitions. [2023-12-20 03:59:15,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-12-20 03:59:15,437 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 486 transitions. [2023-12-20 03:59:15,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-12-20 03:59:15,440 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:15,440 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:59:15,450 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 03:59:15,650 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 03:59:15,651 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:15,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:15,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1581461193, now seen corresponding path program 1 times [2023-12-20 03:59:15,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:15,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935488932] [2023-12-20 03:59:15,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:15,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 03:59:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 03:59:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 03:59:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 03:59:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 03:59:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 03:59:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 03:59:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-20 03:59:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 03:59:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 03:59:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-20 03:59:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-20 03:59:16,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-20 03:59:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-20 03:59:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-20 03:59:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 03:59:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 03:59:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-20 03:59:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-20 03:59:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-20 03:59:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-20 03:59:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 03:59:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 03:59:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-20 03:59:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-20 03:59:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-20 03:59:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-20 03:59:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-20 03:59:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 03:59:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 03:59:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 03:59:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-20 03:59:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-20 03:59:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-20 03:59:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 03:59:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 03:59:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 03:59:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-20 03:59:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 03:59:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-20 03:59:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 03:59:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 03:59:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-20 03:59:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-20 03:59:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-20 03:59:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 03:59:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-20 03:59:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 03:59:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 03:59:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-20 03:59:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-20 03:59:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-20 03:59:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-20 03:59:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-12-20 03:59:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-12-20 03:59:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:16,470 INFO L134 CoverageAnalysis]: Checked inductivity of 5339 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5338 trivial. 0 not checked. [2023-12-20 03:59:16,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:16,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935488932] [2023-12-20 03:59:16,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935488932] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:59:16,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508281393] [2023-12-20 03:59:16,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:16,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:16,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:59:16,471 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 03:59:16,473 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 03:59:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:17,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 1992 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 03:59:17,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:59:17,220 INFO L134 CoverageAnalysis]: Checked inductivity of 5339 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5338 trivial. 0 not checked. [2023-12-20 03:59:17,220 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:59:17,381 INFO L134 CoverageAnalysis]: Checked inductivity of 5339 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5338 trivial. 0 not checked. [2023-12-20 03:59:17,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508281393] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:59:17,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:59:17,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 3, 4] total 10 [2023-12-20 03:59:17,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118322531] [2023-12-20 03:59:17,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:59:17,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 03:59:17,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:17,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 03:59:17,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-20 03:59:17,384 INFO L87 Difference]: Start difference. First operand 314 states and 486 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-12-20 03:59:21,480 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 03:59:25,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:29,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:33,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:37,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:41,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:45,563 WARN L539 Checker$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 03:59:49,580 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 03:59:51,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:51,121 INFO L93 Difference]: Finished difference Result 647 states and 996 transitions. [2023-12-20 03:59:51,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 03:59:51,122 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 367 [2023-12-20 03:59:51,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:51,125 INFO L225 Difference]: With dead ends: 647 [2023-12-20 03:59:51,125 INFO L226 Difference]: Without dead ends: 341 [2023-12-20 03:59:51,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 854 GetRequests, 845 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:59:51,127 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 53 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 72 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:51,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 964 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 639 Invalid, 8 Unknown, 0 Unchecked, 33.6s Time] [2023-12-20 03:59:51,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-12-20 03:59:51,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 338. [2023-12-20 03:59:51,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 221 states have (on average 1.3665158371040724) internal successors, (302), 223 states have internal predecessors, (302), 102 states have call successors, (102), 12 states have call predecessors, (102), 14 states have return successors, (110), 102 states have call predecessors, (110), 102 states have call successors, (110) [2023-12-20 03:59:51,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 514 transitions. [2023-12-20 03:59:51,167 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 514 transitions. Word has length 367 [2023-12-20 03:59:51,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:51,167 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 514 transitions. [2023-12-20 03:59:51,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-12-20 03:59:51,168 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 514 transitions. [2023-12-20 03:59:51,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-20 03:59:51,173 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:51,173 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 12, 4, 4, 4, 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, 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 03:59:51,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-20 03:59:51,382 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 03:59:51,383 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:51,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:51,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1161284738, now seen corresponding path program 2 times [2023-12-20 03:59:51,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:51,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969589956] [2023-12-20 03:59:51,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:51,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-20 03:59:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 03:59:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 03:59:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 03:59:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:52,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 03:59:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 03:59:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 03:59:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-20 03:59:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-20 03:59:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-20 03:59:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-20 03:59:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-20 03:59:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 03:59:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 03:59:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-20 03:59:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-20 03:59:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-20 03:59:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-20 03:59:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 03:59:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 03:59:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-20 03:59:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-20 03:59:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-20 03:59:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-20 03:59:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-20 03:59:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 03:59:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 03:59:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 03:59:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-20 03:59:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-20 03:59:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-20 03:59:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 03:59:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 03:59:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 03:59:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-20 03:59:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 03:59:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-20 03:59:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 03:59:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 03:59:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-20 03:59:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-20 03:59:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-20 03:59:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 03:59:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-20 03:59:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 03:59:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 03:59:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-20 03:59:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-20 03:59:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-20 03:59:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-20 03:59:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-12-20 03:59:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-12-20 03:59:52,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-12-20 03:59:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-12-20 03:59:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-12-20 03:59:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,758 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5468 trivial. 0 not checked. [2023-12-20 03:59:52,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:52,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969589956] [2023-12-20 03:59:52,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969589956] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:59:52,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:59:52,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:59:52,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460172647] [2023-12-20 03:59:52,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:59:52,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 03:59:52,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:52,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 03:59:52,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:59:52,760 INFO L87 Difference]: Start difference. First operand 338 states and 514 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) [2023-12-20 03:59:56,808 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 04:00:00,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:04,839 WARN L539 Checker$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 04:00:08,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:12,860 WARN L539 Checker$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 04:00:15,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:00:15,183 INFO L93 Difference]: Finished difference Result 628 states and 948 transitions. [2023-12-20 04:00:15,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-20 04:00:15,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) Word has length 385 [2023-12-20 04:00:15,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:00:15,187 INFO L225 Difference]: With dead ends: 628 [2023-12-20 04:00:15,187 INFO L226 Difference]: Without dead ends: 480 [2023-12-20 04:00:15,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2023-12-20 04:00:15,192 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 345 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 297 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2023-12-20 04:00:15,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 1036 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 655 Invalid, 5 Unknown, 0 Unchecked, 21.7s Time] [2023-12-20 04:00:15,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-12-20 04:00:15,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 472. [2023-12-20 04:00:15,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 294 states have (on average 1.2925170068027212) internal successors, (380), 297 states have internal predecessors, (380), 158 states have call successors, (158), 16 states have call predecessors, (158), 19 states have return successors, (171), 158 states have call predecessors, (171), 158 states have call successors, (171) [2023-12-20 04:00:15,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 709 transitions. [2023-12-20 04:00:15,229 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 709 transitions. Word has length 385 [2023-12-20 04:00:15,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:00:15,230 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 709 transitions. [2023-12-20 04:00:15,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) [2023-12-20 04:00:15,230 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 709 transitions. [2023-12-20 04:00:15,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-20 04:00:15,233 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:00:15,233 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 12, 4, 4, 4, 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, 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 04:00:15,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 04:00:15,233 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:00:15,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:00:15,234 INFO L85 PathProgramCache]: Analyzing trace with hash -705755136, now seen corresponding path program 1 times [2023-12-20 04:00:15,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:00:15,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145537742] [2023-12-20 04:00:15,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:00:15,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:00:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:15,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:00:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:00:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:00:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:00:16,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:16,064 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 28 [2023-12-20 04:00:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:00:16,070 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 1 [2023-12-20 04:00:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:00:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-20 04:00:16,076 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 101 [2023-12-20 04:00:16,077 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 107 [2023-12-20 04:00:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-20 04:00:16,104 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 119 [2023-12-20 04:00:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 04:00:16,107 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 131 [2023-12-20 04:00:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-20 04:00:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-20 04:00:16,111 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 149 [2023-12-20 04:00:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-20 04:00:16,113 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 161 [2023-12-20 04:00:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 04:00:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-20 04:00:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-20 04:00:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-20 04:00:16,119 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 191 [2023-12-20 04:00:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-20 04:00:16,122 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 203 [2023-12-20 04:00:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 04:00:16,125 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 215 [2023-12-20 04:00:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-20 04:00:16,128 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 227 [2023-12-20 04:00:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-20 04:00:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 04:00:16,132 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 245 [2023-12-20 04:00:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [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 257 [2023-12-20 04:00:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 04:00:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-20 04:00:16,139 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 275 [2023-12-20 04:00:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 04:00:16,141 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 287 [2023-12-20 04:00:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-20 04:00:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-20 04:00:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 04:00:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-20 04:00:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 04:00:16,154 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 323 [2023-12-20 04:00:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-20 04:00:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-20 04:00:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-20 04:00:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-20 04:00:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-12-20 04:00:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-12-20 04:00:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-12-20 04:00:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-12-20 04:00:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-12-20 04:00:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:16,186 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 5356 trivial. 0 not checked. [2023-12-20 04:00:16,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:00:16,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145537742] [2023-12-20 04:00:16,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145537742] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:00:16,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570078483] [2023-12-20 04:00:16,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:00:16,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:00:16,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:00:16,188 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:00:16,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 04:00:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:17,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 2326 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 04:00:17,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:00:17,143 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 5356 trivial. 0 not checked. [2023-12-20 04:00:17,144 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:00:17,352 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 5356 trivial. 0 not checked. [2023-12-20 04:00:17,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570078483] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:00:17,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:00:17,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 7] total 13 [2023-12-20 04:00:17,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006382104] [2023-12-20 04:00:17,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:00:17,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 04:00:17,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:00:17,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 04:00:17,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-12-20 04:00:17,356 INFO L87 Difference]: Start difference. First operand 472 states and 709 transitions. Second operand has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-12-20 04:00:21,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:25,459 WARN L539 Checker$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 04:00:29,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:33,476 WARN L539 Checker$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 04:00:37,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:41,494 WARN L539 Checker$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 04:00:45,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:49,521 WARN L539 Checker$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 04:00:53,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:57,549 WARN L539 Checker$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 04:01:01,566 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 04:01:02,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:01:02,507 INFO L93 Difference]: Finished difference Result 936 states and 1411 transitions. [2023-12-20 04:01:02,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 04:01:02,507 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 385 [2023-12-20 04:01:02,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:01:02,509 INFO L225 Difference]: With dead ends: 936 [2023-12-20 04:01:02,510 INFO L226 Difference]: Without dead ends: 490 [2023-12-20 04:01:02,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 893 GetRequests, 878 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-20 04:01:02,511 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 68 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 201 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.0s IncrementalHoareTripleChecker+Time [2023-12-20 04:01:02,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 563 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 334 Invalid, 11 Unknown, 0 Unchecked, 45.0s Time] [2023-12-20 04:01:02,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2023-12-20 04:01:02,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2023-12-20 04:01:02,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 312 states have (on average 1.2852564102564104) internal successors, (401), 315 states have internal predecessors, (401), 158 states have call successors, (158), 16 states have call predecessors, (158), 19 states have return successors, (171), 158 states have call predecessors, (171), 158 states have call successors, (171) [2023-12-20 04:01:02,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 730 transitions. [2023-12-20 04:01:02,542 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 730 transitions. Word has length 385 [2023-12-20 04:01:02,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:01:02,542 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 730 transitions. [2023-12-20 04:01:02,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-12-20 04:01:02,543 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 730 transitions. [2023-12-20 04:01:02,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2023-12-20 04:01:02,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:01:02,550 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 21, 7, 7, 7, 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, 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 04:01:02,562 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 04:01:02,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:01:02,761 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:01:02,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:01:02,761 INFO L85 PathProgramCache]: Analyzing trace with hash -2047407751, now seen corresponding path program 2 times [2023-12-20 04:01:02,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:01:02,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298621227] [2023-12-20 04:01:02,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:01:02,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:01:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:03,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:01:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:03,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:01:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:03,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:03,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:01:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:03,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:01:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:03,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:03,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:01:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:03,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:01:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:03,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:03,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:01:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:03,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-20 04:01:04,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-20 04:01:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 04:01:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:01:04,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-20 04:01:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-20 04:01:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-20 04:01:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-20 04:01:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 04:01:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 04:01:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-20 04:01:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-20 04:01:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-20 04:01:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-20 04:01:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-20 04:01:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 04:01:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 04:01:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 04:01:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-20 04:01:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-20 04:01:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-20 04:01:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 04:01:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 04:01:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 04:01:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-20 04:01:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 04:01:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-20 04:01:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 04:01:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 04:01:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-20 04:01:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-20 04:01:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-20 04:01:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 04:01:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-20 04:01:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 04:01:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 04:01:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-20 04:01:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-20 04:01:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-20 04:01:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-20 04:01:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-12-20 04:01:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-12-20 04:01:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-12-20 04:01:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-12-20 04:01:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-12-20 04:01:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2023-12-20 04:01:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2023-12-20 04:01:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-12-20 04:01:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:04,088 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 5756 trivial. 0 not checked. [2023-12-20 04:01:04,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:01:04,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298621227] [2023-12-20 04:01:04,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298621227] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:01:04,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076266313] [2023-12-20 04:01:04,089 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-20 04:01:04,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:01:04,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:01:04,090 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:01:04,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 04:02:20,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-20 04:02:20,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-20 04:02:20,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 2671 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-20 04:02:20,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:02:20,806 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 04:02:21,346 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 780 proven. 4 refuted. 0 times theorem prover too weak. 4975 trivial. 0 not checked. [2023-12-20 04:02:21,346 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:02:21,935 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 5743 trivial. 0 not checked. [2023-12-20 04:02:21,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076266313] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:02:21,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:02:21,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 9] total 29 [2023-12-20 04:02:21,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981473407] [2023-12-20 04:02:21,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:02:21,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-20 04:02:21,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:02:21,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-20 04:02:21,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2023-12-20 04:02:21,939 INFO L87 Difference]: Start difference. First operand 490 states and 730 transitions. Second operand has 29 states, 26 states have (on average 5.653846153846154) internal successors, (147), 24 states have internal predecessors, (147), 18 states have call successors, (121), 11 states have call predecessors, (121), 11 states have return successors, (121), 14 states have call predecessors, (121), 18 states have call successors, (121) [2023-12-20 04:02:26,034 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 04:02:30,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:34,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:38,063 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 04:02:45,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:02:45,378 INFO L93 Difference]: Finished difference Result 1243 states and 1844 transitions. [2023-12-20 04:02:45,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-20 04:02:45,379 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 5.653846153846154) internal successors, (147), 24 states have internal predecessors, (147), 18 states have call successors, (121), 11 states have call predecessors, (121), 11 states have return successors, (121), 14 states have call predecessors, (121), 18 states have call successors, (121) Word has length 403 [2023-12-20 04:02:45,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:02:45,382 INFO L225 Difference]: With dead ends: 1243 [2023-12-20 04:02:45,382 INFO L226 Difference]: Without dead ends: 805 [2023-12-20 04:02:45,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 993 GetRequests, 921 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1543 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1087, Invalid=4315, Unknown=0, NotChecked=0, Total=5402 [2023-12-20 04:02:45,385 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 1180 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 3058 mSolverCounterSat, 1248 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 4310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1248 IncrementalHoareTripleChecker+Valid, 3058 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2023-12-20 04:02:45,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1240 Valid, 1937 Invalid, 4310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1248 Valid, 3058 Invalid, 4 Unknown, 0 Unchecked, 20.0s Time] [2023-12-20 04:02:45,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2023-12-20 04:02:45,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 549. [2023-12-20 04:02:45,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 359 states have (on average 1.3147632311977715) internal successors, (472), 379 states have internal predecessors, (472), 149 states have call successors, (149), 37 states have call predecessors, (149), 40 states have return successors, (164), 132 states have call predecessors, (164), 149 states have call successors, (164) [2023-12-20 04:02:45,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 785 transitions. [2023-12-20 04:02:45,435 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 785 transitions. Word has length 403 [2023-12-20 04:02:45,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:02:45,435 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 785 transitions. [2023-12-20 04:02:45,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 5.653846153846154) internal successors, (147), 24 states have internal predecessors, (147), 18 states have call successors, (121), 11 states have call predecessors, (121), 11 states have return successors, (121), 14 states have call predecessors, (121), 18 states have call successors, (121) [2023-12-20 04:02:45,435 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 785 transitions. [2023-12-20 04:02:45,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2023-12-20 04:02:45,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:02:45,438 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 21, 7, 7, 7, 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, 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 04:02:45,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 04:02:45,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:02:45,659 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:02:45,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:02:45,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1486154935, now seen corresponding path program 1 times [2023-12-20 04:02:45,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:02:45,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789842] [2023-12-20 04:02:45,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:02:45,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:02:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:02:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:02:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:46,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:02:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:02:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:47,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:02:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:02:47,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:02:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-20 04:02:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-20 04:02:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 04:02:47,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:02:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-20 04:02:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-20 04:02:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-20 04:02:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-20 04:02:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 04:02:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 04:02:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-20 04:02:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-20 04:02:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-20 04:02:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-20 04:02:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-20 04:02:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 04:02:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 04:02:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 04:02:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-20 04:02:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-20 04:02:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-20 04:02:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 04:02:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 04:02:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 04:02:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-20 04:02:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 04:02:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-20 04:02:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 04:02:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 04:02:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-20 04:02:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-20 04:02:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-20 04:02:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 04:02:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-20 04:02:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 04:02:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 04:02:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-20 04:02:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-20 04:02:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-20 04:02:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-20 04:02:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-12-20 04:02:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-12-20 04:02:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-12-20 04:02:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-12-20 04:02:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-12-20 04:02:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2023-12-20 04:02:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2023-12-20 04:02:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-12-20 04:02:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:47,096 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5759 trivial. 0 not checked. [2023-12-20 04:02:47,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:02:47,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789842] [2023-12-20 04:02:47,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:02:47,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:02:47,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 04:02:47,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314099600] [2023-12-20 04:02:47,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:02:47,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 04:02:47,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:02:47,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 04:02:47,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-20 04:02:47,098 INFO L87 Difference]: Start difference. First operand 549 states and 785 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2023-12-20 04:02:51,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:55,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:59,173 WARN L539 Checker$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 04:03:00,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:03:00,713 INFO L93 Difference]: Finished difference Result 928 states and 1336 transitions. [2023-12-20 04:03:00,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 04:03:00,713 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 403 [2023-12-20 04:03:00,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:03:00,716 INFO L225 Difference]: With dead ends: 928 [2023-12-20 04:03:00,716 INFO L226 Difference]: Without dead ends: 671 [2023-12-20 04:03:00,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-20 04:03:00,717 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 432 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 665 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 665 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-12-20 04:03:00,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 425 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [665 Valid, 499 Invalid, 3 Unknown, 0 Unchecked, 13.2s Time] [2023-12-20 04:03:00,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2023-12-20 04:03:00,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 654. [2023-12-20 04:03:00,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 415 states have (on average 1.269879518072289) internal successors, (527), 435 states have internal predecessors, (527), 197 states have call successors, (197), 38 states have call predecessors, (197), 41 states have return successors, (212), 180 states have call predecessors, (212), 197 states have call successors, (212) [2023-12-20 04:03:00,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 936 transitions. [2023-12-20 04:03:00,770 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 936 transitions. Word has length 403 [2023-12-20 04:03:00,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:03:00,770 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 936 transitions. [2023-12-20 04:03:00,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2023-12-20 04:03:00,771 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 936 transitions. [2023-12-20 04:03:00,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2023-12-20 04:03:00,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:03:00,774 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 21, 7, 7, 7, 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, 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 04:03:00,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 04:03:00,774 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:03:00,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:03:00,774 INFO L85 PathProgramCache]: Analyzing trace with hash -619918599, now seen corresponding path program 1 times [2023-12-20 04:03:00,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:03:00,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8217242] [2023-12-20 04:03:00,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:03:00,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:03:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:03,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:03:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:03,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:03:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:03,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:03:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:03:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:03:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:03:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:03:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-20 04:03:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-20 04:03:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 04:03:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:03:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-20 04:03:04,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-20 04:03:04,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-20 04:03:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-20 04:03:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 04:03:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 04:03:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-20 04:03:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-20 04:03:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-20 04:03:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-20 04:03:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-20 04:03:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 04:03:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 04:03:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 04:03:04,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-20 04:03:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-20 04:03:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-20 04:03:04,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 04:03:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 04:03:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 04:03:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-20 04:03:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 04:03:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-20 04:03:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 04:03:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 04:03:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-20 04:03:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-20 04:03:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-20 04:03:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 04:03:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-20 04:03:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 04:03:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 04:03:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-20 04:03:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-20 04:03:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-20 04:03:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-20 04:03:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-12-20 04:03:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-12-20 04:03:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-12-20 04:03:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-12-20 04:03:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-12-20 04:03:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2023-12-20 04:03:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2023-12-20 04:03:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-12-20 04:03:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:04,397 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 5756 trivial. 0 not checked. [2023-12-20 04:03:04,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:03:04,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8217242] [2023-12-20 04:03:04,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8217242] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:03:04,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847809673] [2023-12-20 04:03:04,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:03:04,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:03:04,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:03:04,399 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 04:03:04,404 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 04:03:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 2768 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-20 04:03:05,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:03:05,778 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 04:03:12,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:03:12,740 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:03:12,741 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 04:03:13,832 INFO L349 Elim1Store]: treesize reduction 64, result has 54.9 percent of original size [2023-12-20 04:03:13,832 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 04:03:35,691 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 808 proven. 4 refuted. 0 times theorem prover too weak. 4947 trivial. 0 not checked. [2023-12-20 04:03:35,692 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:03:35,972 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 04:03:35,976 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 04:03:36,388 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 04:03:36,392 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 04:03:36,450 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 04:03:36,454 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 04:03:36,526 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5755 trivial. 0 not checked. [2023-12-20 04:03:36,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847809673] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:03:36,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:03:36,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 9] total 34 [2023-12-20 04:03:36,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853677732] [2023-12-20 04:03:36,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:03:36,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-20 04:03:36,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:03:36,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-20 04:03:36,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=967, Unknown=6, NotChecked=0, Total=1122 [2023-12-20 04:03:36,529 INFO L87 Difference]: Start difference. First operand 654 states and 936 transitions. Second operand has 34 states, 32 states have (on average 5.0) internal successors, (160), 31 states have internal predecessors, (160), 17 states have call successors, (121), 12 states have call predecessors, (121), 13 states have return successors, (121), 17 states have call predecessors, (121), 17 states have call successors, (121) [2023-12-20 04:03:40,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:44,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:48,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:03:52,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:56,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:00,693 WARN L539 Checker$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 04:04:04,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:08,718 WARN L539 Checker$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 04:04:12,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:16,736 WARN L539 Checker$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 04:04:20,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:24,753 WARN L539 Checker$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 04:04:28,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:32,776 WARN L539 Checker$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 04:04:36,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:40,791 WARN L539 Checker$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 04:04:44,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:48,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:52,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:56,831 WARN L539 Checker$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 04:05:00,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:04,848 WARN L539 Checker$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 04:05:08,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:12,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:18,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:05:18,122 INFO L93 Difference]: Finished difference Result 1265 states and 1821 transitions. [2023-12-20 04:05:18,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-20 04:05:18,122 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 5.0) internal successors, (160), 31 states have internal predecessors, (160), 17 states have call successors, (121), 12 states have call predecessors, (121), 13 states have return successors, (121), 17 states have call predecessors, (121), 17 states have call successors, (121) Word has length 403 [2023-12-20 04:05:18,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:05:18,125 INFO L225 Difference]: With dead ends: 1265 [2023-12-20 04:05:18,125 INFO L226 Difference]: Without dead ends: 709 [2023-12-20 04:05:18,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 955 GetRequests, 899 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 31.3s TimeCoverageRelationStatistics Valid=513, Invalid=2237, Unknown=6, NotChecked=0, Total=2756 [2023-12-20 04:05:18,128 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 773 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 829 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 99.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 3008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 829 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 99.8s IncrementalHoareTripleChecker+Time [2023-12-20 04:05:18,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1842 Invalid, 3008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [829 Valid, 2155 Invalid, 24 Unknown, 0 Unchecked, 99.8s Time] [2023-12-20 04:05:18,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2023-12-20 04:05:18,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 694. [2023-12-20 04:05:18,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 441 states have (on average 1.2675736961451247) internal successors, (559), 462 states have internal predecessors, (559), 204 states have call successors, (204), 42 states have call predecessors, (204), 48 states have return successors, (228), 189 states have call predecessors, (228), 204 states have call successors, (228) [2023-12-20 04:05:18,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 991 transitions. [2023-12-20 04:05:18,210 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 991 transitions. Word has length 403 [2023-12-20 04:05:18,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:05:18,210 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 991 transitions. [2023-12-20 04:05:18,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 5.0) internal successors, (160), 31 states have internal predecessors, (160), 17 states have call successors, (121), 12 states have call predecessors, (121), 13 states have return successors, (121), 17 states have call predecessors, (121), 17 states have call successors, (121) [2023-12-20 04:05:18,210 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 991 transitions. [2023-12-20 04:05:18,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2023-12-20 04:05:18,214 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:05:18,214 INFO L195 NwaCegarLoop]: trace histogram [55, 55, 55, 21, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:05:18,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-20 04:05:18,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:05:18,428 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:05:18,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:05:18,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1907165743, now seen corresponding path program 1 times [2023-12-20 04:05:18,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:05:18,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551558122] [2023-12-20 04:05:18,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:05:18,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:05:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:05:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:05:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:05:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:05:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-20 04:05:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:05:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-20 04:05:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:05:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:05:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:05:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:05:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:05:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:05:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:20,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-20 04:05:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-20 04:05:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-20 04:05:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 04:05:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 04:05:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 04:05:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 04:05:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 04:05:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-20 04:05:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-20 04:05:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-20 04:05:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-20 04:05:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 04:05:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-20 04:05:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 04:05:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 04:05:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-20 04:05:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-20 04:05:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-20 04:05:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-20 04:05:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-20 04:05:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-20 04:05:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-20 04:05:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-20 04:05:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-20 04:05:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-12-20 04:05:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-12-20 04:05:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-20 04:05:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-12-20 04:05:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-20 04:05:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-20 04:05:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-12-20 04:05:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-12-20 04:05:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-12-20 04:05:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-20 04:05:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-12-20 04:05:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-12-20 04:05:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2023-12-20 04:05:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-20 04:05:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-12-20 04:05:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2023-12-20 04:05:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2023-12-20 04:05:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2023-12-20 04:05:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2023-12-20 04:05:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2023-12-20 04:05:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2023-12-20 04:05:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2023-12-20 04:05:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2023-12-20 04:05:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:21,076 INFO L134 CoverageAnalysis]: Checked inductivity of 6488 backedges. 1 proven. 27 refuted. 0 times theorem prover too weak. 6460 trivial. 0 not checked. [2023-12-20 04:05:21,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:05:21,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551558122] [2023-12-20 04:05:21,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551558122] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:05:21,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858816710] [2023-12-20 04:05:21,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:05:21,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:05:21,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:05:21,081 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 04:05:21,083 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 04:05:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:22,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 3279 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-20 04:05:22,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:05:22,506 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 04:05:22,671 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 04:05:22,713 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 04:05:22,721 INFO L134 CoverageAnalysis]: Checked inductivity of 6488 backedges. 706 proven. 15 refuted. 0 times theorem prover too weak. 5767 trivial. 0 not checked. [2023-12-20 04:05:22,721 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:05:22,879 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 04:05:22,968 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 04:05:23,098 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 04:05:23,187 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 04:05:23,326 INFO L134 CoverageAnalysis]: Checked inductivity of 6488 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 6457 trivial. 0 not checked. [2023-12-20 04:05:23,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858816710] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:05:23,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:05:23,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 30 [2023-12-20 04:05:23,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228008838] [2023-12-20 04:05:23,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:05:23,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-20 04:05:23,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:05:23,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-20 04:05:23,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=764, Unknown=0, NotChecked=0, Total=870 [2023-12-20 04:05:23,329 INFO L87 Difference]: Start difference. First operand 694 states and 991 transitions. Second operand has 30 states, 28 states have (on average 6.75) internal successors, (189), 26 states have internal predecessors, (189), 19 states have call successors, (137), 9 states have call predecessors, (137), 11 states have return successors, (137), 16 states have call predecessors, (137), 19 states have call successors, (137) [2023-12-20 04:05:27,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:31,492 WARN L539 Checker$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 04:05:35,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:39,508 WARN L539 Checker$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 04:05:43,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:47,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:51,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:55,540 WARN L539 Checker$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 04:05:59,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:03,555 WARN L539 Checker$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 04:06:07,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:11,579 WARN L539 Checker$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 04:06:15,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:19,595 WARN L539 Checker$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 04:06:23,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:27,612 WARN L539 Checker$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 04:06:36,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:06:36,008 INFO L93 Difference]: Finished difference Result 1806 states and 2582 transitions. [2023-12-20 04:06:36,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-12-20 04:06:36,009 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 6.75) internal successors, (189), 26 states have internal predecessors, (189), 19 states have call successors, (137), 9 states have call predecessors, (137), 11 states have return successors, (137), 16 states have call predecessors, (137), 19 states have call successors, (137) Word has length 455 [2023-12-20 04:06:36,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:06:36,013 INFO L225 Difference]: With dead ends: 1806 [2023-12-20 04:06:36,013 INFO L226 Difference]: Without dead ends: 1055 [2023-12-20 04:06:36,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1121 GetRequests, 1045 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1369 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1013, Invalid=4993, Unknown=0, NotChecked=0, Total=6006 [2023-12-20 04:06:36,041 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 1108 mSDsluCounter, 2608 mSDsCounter, 0 mSdLazyCounter, 3029 mSolverCounterSat, 648 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 2857 SdHoareTripleChecker+Invalid, 3693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 648 IncrementalHoareTripleChecker+Valid, 3029 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.0s IncrementalHoareTripleChecker+Time [2023-12-20 04:06:36,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 2857 Invalid, 3693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [648 Valid, 3029 Invalid, 16 Unknown, 0 Unchecked, 68.0s Time] [2023-12-20 04:06:36,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2023-12-20 04:06:36,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 928. [2023-12-20 04:06:36,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 576 states have (on average 1.2413194444444444) internal successors, (715), 606 states have internal predecessors, (715), 282 states have call successors, (282), 62 states have call predecessors, (282), 69 states have return successors, (313), 259 states have call predecessors, (313), 282 states have call successors, (313) [2023-12-20 04:06:36,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1310 transitions. [2023-12-20 04:06:36,210 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1310 transitions. Word has length 455 [2023-12-20 04:06:36,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:06:36,210 INFO L495 AbstractCegarLoop]: Abstraction has 928 states and 1310 transitions. [2023-12-20 04:06:36,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 6.75) internal successors, (189), 26 states have internal predecessors, (189), 19 states have call successors, (137), 9 states have call predecessors, (137), 11 states have return successors, (137), 16 states have call predecessors, (137), 19 states have call successors, (137) [2023-12-20 04:06:36,210 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1310 transitions. [2023-12-20 04:06:36,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2023-12-20 04:06:36,214 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:06:36,215 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 21, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:06:36,240 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-20 04:06:36,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:06:36,444 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:06:36,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:06:36,444 INFO L85 PathProgramCache]: Analyzing trace with hash 597998511, now seen corresponding path program 1 times [2023-12-20 04:06:36,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:06:36,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134926696] [2023-12-20 04:06:36,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:06:36,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:06:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:38,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:06:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:38,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:06:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:38,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:38,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:06:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:38,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:06:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:38,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:38,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:06:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:38,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:06:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:38,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:38,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:06:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:38,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:38,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-20 04:06:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 04:06:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-20 04:06:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-20 04:06:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-20 04:06:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 04:06:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-20 04:06:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-20 04:06:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-20 04:06:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-20 04:06:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-20 04:06:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-20 04:06:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-20 04:06:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-20 04:06:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-20 04:06:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-20 04:06:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-20 04:06:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 04:06:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-20 04:06:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-20 04:06:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-20 04:06:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 04:06:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-20 04:06:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 04:06:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-20 04:06:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-20 04:06:39,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-20 04:06:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-20 04:06:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-20 04:06:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-12-20 04:06:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-20 04:06:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-12-20 04:06:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2023-12-20 04:06:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-20 04:06:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-20 04:06:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 04:06:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-20 04:06:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-12-20 04:06:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-12-20 04:06:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-12-20 04:06:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-20 04:06:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-12-20 04:06:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2023-12-20 04:06:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2023-12-20 04:06:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2023-12-20 04:06:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2023-12-20 04:06:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2023-12-20 04:06:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2023-12-20 04:06:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2023-12-20 04:06:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2023-12-20 04:06:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:39,168 INFO L134 CoverageAnalysis]: Checked inductivity of 5987 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5972 trivial. 0 not checked. [2023-12-20 04:06:39,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:06:39,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134926696] [2023-12-20 04:06:39,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134926696] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:06:39,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:06:39,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 04:06:39,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778095099] [2023-12-20 04:06:39,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:06:39,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 04:06:39,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:06:39,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 04:06:39,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-12-20 04:06:39,170 INFO L87 Difference]: Start difference. First operand 928 states and 1310 transitions. Second operand has 12 states, 10 states have (on average 9.5) internal successors, (95), 8 states have internal predecessors, (95), 5 states have call successors, (59), 4 states have call predecessors, (59), 3 states have return successors, (59), 6 states have call predecessors, (59), 5 states have call successors, (59) [2023-12-20 04:06:43,225 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 04:06:45,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:06:45,778 INFO L93 Difference]: Finished difference Result 2275 states and 3225 transitions. [2023-12-20 04:06:45,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 04:06:45,779 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 9.5) internal successors, (95), 8 states have internal predecessors, (95), 5 states have call successors, (59), 4 states have call predecessors, (59), 3 states have return successors, (59), 6 states have call predecessors, (59), 5 states have call successors, (59) Word has length 422 [2023-12-20 04:06:45,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:06:45,784 INFO L225 Difference]: With dead ends: 2275 [2023-12-20 04:06:45,784 INFO L226 Difference]: Without dead ends: 1436 [2023-12-20 04:06:45,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2023-12-20 04:06:45,787 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 989 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 955 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 955 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-12-20 04:06:45,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 565 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [955 Valid, 907 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2023-12-20 04:06:45,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2023-12-20 04:06:45,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 967. [2023-12-20 04:06:45,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 608 states have (on average 1.2286184210526316) internal successors, (747), 639 states have internal predecessors, (747), 282 states have call successors, (282), 62 states have call predecessors, (282), 76 states have return successors, (326), 265 states have call predecessors, (326), 282 states have call successors, (326) [2023-12-20 04:06:45,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1355 transitions. [2023-12-20 04:06:45,955 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1355 transitions. Word has length 422 [2023-12-20 04:06:45,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:06:45,956 INFO L495 AbstractCegarLoop]: Abstraction has 967 states and 1355 transitions. [2023-12-20 04:06:45,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 9.5) internal successors, (95), 8 states have internal predecessors, (95), 5 states have call successors, (59), 4 states have call predecessors, (59), 3 states have return successors, (59), 6 states have call predecessors, (59), 5 states have call successors, (59) [2023-12-20 04:06:45,956 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1355 transitions. [2023-12-20 04:06:45,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2023-12-20 04:06:45,960 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:06:45,960 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 21, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:06:45,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 04:06:45,960 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:06:45,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:06:45,961 INFO L85 PathProgramCache]: Analyzing trace with hash -379027569, now seen corresponding path program 1 times [2023-12-20 04:06:45,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:06:45,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646180603] [2023-12-20 04:06:45,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:06:45,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:06:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:48,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:06:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:48,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:06:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:48,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:48,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:48,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:06:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:48,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:06:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:48,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:48,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:06:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:06:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:06:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-20 04:06:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 04:06:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:06:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-20 04:06:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-20 04:06:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-20 04:06:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 04:06:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-20 04:06:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-20 04:06:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-20 04:06:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-20 04:06:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-20 04:06:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-20 04:06:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-20 04:06:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-20 04:06:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-20 04:06:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-20 04:06:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-20 04:06:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 04:06:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-20 04:06:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-20 04:06:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-20 04:06:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 04:06:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-20 04:06:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 04:06:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-20 04:06:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-20 04:06:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-20 04:06:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-20 04:06:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-20 04:06:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-12-20 04:06:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-20 04:06:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-12-20 04:06:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2023-12-20 04:06:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-20 04:06:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-20 04:06:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 04:06:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-20 04:06:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-12-20 04:06:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-12-20 04:06:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-12-20 04:06:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-20 04:06:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-12-20 04:06:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2023-12-20 04:06:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2023-12-20 04:06:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2023-12-20 04:06:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2023-12-20 04:06:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2023-12-20 04:06:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2023-12-20 04:06:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2023-12-20 04:06:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2023-12-20 04:06:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:49,190 INFO L134 CoverageAnalysis]: Checked inductivity of 5987 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 5981 trivial. 0 not checked. [2023-12-20 04:06:49,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:06:49,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646180603] [2023-12-20 04:06:49,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646180603] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:06:49,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965726956] [2023-12-20 04:06:49,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:06:49,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:06:49,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:06:49,191 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 04:06:49,193 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 04:06:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:06:50,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 2916 conjuncts, 60 conjunts are in the unsatisfiable core [2023-12-20 04:06:50,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:06:50,893 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 04:06:51,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:06:51,132 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 04:06:51,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:06:51,249 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 04:06:51,693 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 04:06:51,900 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 04:06:51,906 INFO L134 CoverageAnalysis]: Checked inductivity of 5987 backedges. 985 proven. 55 refuted. 0 times theorem prover too weak. 4947 trivial. 0 not checked. [2023-12-20 04:06:51,906 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:06:52,396 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 24 treesize of output 20 [2023-12-20 04:06:52,805 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 04:06:53,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965726956] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:06:53,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 04:06:53,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20] total 35 [2023-12-20 04:06:53,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974764991] [2023-12-20 04:06:53,215 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 04:06:53,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-12-20 04:06:53,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:06:53,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-12-20 04:06:53,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1970, Unknown=0, NotChecked=0, Total=2162 [2023-12-20 04:06:53,223 INFO L87 Difference]: Start difference. First operand 967 states and 1355 transitions. Second operand has 35 states, 34 states have (on average 4.5588235294117645) internal successors, (155), 32 states have internal predecessors, (155), 18 states have call successors, (119), 12 states have call predecessors, (119), 14 states have return successors, (119), 16 states have call predecessors, (119), 18 states have call successors, (119) [2023-12-20 04:06:57,359 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 04:07:01,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:05,379 WARN L539 Checker$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 04:07:09,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:13,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:17,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:21,419 WARN L539 Checker$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 04:07:25,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:29,431 WARN L539 Checker$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 04:07:33,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:37,445 WARN L539 Checker$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 04:07:41,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:45,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:49,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:53,499 WARN L539 Checker$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 04:07:57,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:01,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:05,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:09,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:13,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:17,549 WARN L539 Checker$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 04:08:21,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:25,560 WARN L539 Checker$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 04:08:29,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:33,573 WARN L539 Checker$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 04:08:37,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:41,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:13,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:09:13,502 INFO L93 Difference]: Finished difference Result 3907 states and 5515 transitions. [2023-12-20 04:09:13,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2023-12-20 04:09:13,503 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 4.5588235294117645) internal successors, (155), 32 states have internal predecessors, (155), 18 states have call successors, (119), 12 states have call predecessors, (119), 14 states have return successors, (119), 16 states have call predecessors, (119), 18 states have call successors, (119) Word has length 422 [2023-12-20 04:09:13,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:09:13,543 INFO L225 Difference]: With dead ends: 3907 [2023-12-20 04:09:13,543 INFO L226 Difference]: Without dead ends: 3090 [2023-12-20 04:09:13,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1036 GetRequests, 880 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7401 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=2914, Invalid=21892, Unknown=0, NotChecked=0, Total=24806 [2023-12-20 04:09:13,550 INFO L413 NwaCegarLoop]: 857 mSDtfsCounter, 2956 mSDsluCounter, 8640 mSDsCounter, 0 mSdLazyCounter, 13583 mSolverCounterSat, 2869 mSolverCounterUnsat, 27 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 122.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3052 SdHoareTripleChecker+Valid, 9497 SdHoareTripleChecker+Invalid, 16479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2869 IncrementalHoareTripleChecker+Valid, 13583 IncrementalHoareTripleChecker+Invalid, 27 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 124.3s IncrementalHoareTripleChecker+Time [2023-12-20 04:09:13,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3052 Valid, 9497 Invalid, 16479 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2869 Valid, 13583 Invalid, 27 Unknown, 0 Unchecked, 124.3s Time] [2023-12-20 04:09:13,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3090 states. [2023-12-20 04:09:14,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3090 to 2047. [2023-12-20 04:09:14,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2047 states, 1249 states have (on average 1.22257806244996) internal successors, (1527), 1328 states have internal predecessors, (1527), 630 states have call successors, (630), 140 states have call predecessors, (630), 167 states have return successors, (720), 578 states have call predecessors, (720), 630 states have call successors, (720) [2023-12-20 04:09:14,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2047 states to 2047 states and 2877 transitions. [2023-12-20 04:09:14,021 INFO L78 Accepts]: Start accepts. Automaton has 2047 states and 2877 transitions. Word has length 422 [2023-12-20 04:09:14,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:09:14,021 INFO L495 AbstractCegarLoop]: Abstraction has 2047 states and 2877 transitions. [2023-12-20 04:09:14,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 4.5588235294117645) internal successors, (155), 32 states have internal predecessors, (155), 18 states have call successors, (119), 12 states have call predecessors, (119), 14 states have return successors, (119), 16 states have call predecessors, (119), 18 states have call successors, (119) [2023-12-20 04:09:14,022 INFO L276 IsEmpty]: Start isEmpty. Operand 2047 states and 2877 transitions. [2023-12-20 04:09:14,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2023-12-20 04:09:14,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:09:14,028 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 21, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:09:14,044 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 04:09:14,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-20 04:09:14,242 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:09:14,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:09:14,242 INFO L85 PathProgramCache]: Analyzing trace with hash 674231823, now seen corresponding path program 1 times [2023-12-20 04:09:14,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:09:14,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558128229] [2023-12-20 04:09:14,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:09:14,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:09:14,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:09:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:09:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:09:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:09:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:09:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:09:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:09:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:09:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:09:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:09:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:09:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-20 04:09:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:09:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:09:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-20 04:09:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-20 04:09:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-20 04:09:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-20 04:09:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-20 04:09:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 04:09:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 04:09:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-20 04:09:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-20 04:09:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-20 04:09:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-20 04:09:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-20 04:09:16,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 04:09:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 04:09:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 04:09:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-20 04:09:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-20 04:09:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-20 04:09:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 04:09:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 04:09:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 04:09:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-20 04:09:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 04:09:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-20 04:09:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 04:09:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 04:09:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-20 04:09:16,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-20 04:09:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-20 04:09:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 04:09:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-20 04:09:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 04:09:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 04:09:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-20 04:09:16,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-20 04:09:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-20 04:09:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-20 04:09:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-12-20 04:09:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-12-20 04:09:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-12-20 04:09:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-12-20 04:09:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-12-20 04:09:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2023-12-20 04:09:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2023-12-20 04:09:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-12-20 04:09:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2023-12-20 04:09:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2023-12-20 04:09:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2023-12-20 04:09:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:16,666 INFO L134 CoverageAnalysis]: Checked inductivity of 5990 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 5982 trivial. 0 not checked. [2023-12-20 04:09:16,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:09:16,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558128229] [2023-12-20 04:09:16,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558128229] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:09:16,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901280362] [2023-12-20 04:09:16,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:09:16,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:09:16,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:09:16,681 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 04:09:16,694 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 04:09:18,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:09:18,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 2940 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-20 04:09:18,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:09:18,245 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 04:09:21,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:09:21,904 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:09:21,905 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 04:09:22,089 INFO L349 Elim1Store]: treesize reduction 48, result has 63.1 percent of original size [2023-12-20 04:09:22,089 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 04:09:22,476 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 04:09:22,505 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-20 04:09:22,505 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 04:09:22,512 INFO L134 CoverageAnalysis]: Checked inductivity of 5990 backedges. 984 proven. 51 refuted. 0 times theorem prover too weak. 4955 trivial. 0 not checked. [2023-12-20 04:09:22,512 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:09:22,599 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 04:09:22,718 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 138 treesize of output 134 [2023-12-20 04:09:23,125 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 04:09:23,238 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 04:09:23,405 INFO L134 CoverageAnalysis]: Checked inductivity of 5990 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 5979 trivial. 0 not checked. [2023-12-20 04:09:23,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901280362] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:09:23,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:09:23,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17, 13] total 37 [2023-12-20 04:09:23,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4900710] [2023-12-20 04:09:23,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:09:23,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-12-20 04:09:23,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:09:23,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-12-20 04:09:23,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1166, Unknown=2, NotChecked=0, Total=1332 [2023-12-20 04:09:23,408 INFO L87 Difference]: Start difference. First operand 2047 states and 2877 transitions. Second operand has 37 states, 35 states have (on average 4.542857142857143) internal successors, (159), 32 states have internal predecessors, (159), 19 states have call successors, (125), 12 states have call predecessors, (125), 14 states have return successors, (123), 16 states have call predecessors, (123), 19 states have call successors, (123) [2023-12-20 04:09:27,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:31,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:35,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:39,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:43,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:47,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:51,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:55,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:59,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:03,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:07,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:11,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:15,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:10:19,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:23,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-20 04:10:27,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:31,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:35,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:39,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:43,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:47,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:51,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:55,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:01,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-20 04:11:08,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-20 04:11:09,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:11:10,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:11:16,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:11:16,796 INFO L93 Difference]: Finished difference Result 2996 states and 4185 transitions. [2023-12-20 04:11:16,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-20 04:11:16,797 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 35 states have (on average 4.542857142857143) internal successors, (159), 32 states have internal predecessors, (159), 19 states have call successors, (125), 12 states have call predecessors, (125), 14 states have return successors, (123), 16 states have call predecessors, (123), 19 states have call successors, (123) Word has length 421 [2023-12-20 04:11:16,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:11:16,801 INFO L225 Difference]: With dead ends: 2996 [2023-12-20 04:11:16,801 INFO L226 Difference]: Without dead ends: 1012 [2023-12-20 04:11:16,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1013 GetRequests, 939 SyntacticMatches, 4 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1139 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=914, Invalid=4196, Unknown=2, NotChecked=0, Total=5112 [2023-12-20 04:11:16,806 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 1336 mSDsluCounter, 3064 mSDsCounter, 0 mSdLazyCounter, 4161 mSolverCounterSat, 1671 mSolverCounterUnsat, 27 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 107.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 3387 SdHoareTripleChecker+Invalid, 5859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1671 IncrementalHoareTripleChecker+Valid, 4161 IncrementalHoareTripleChecker+Invalid, 27 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 108.3s IncrementalHoareTripleChecker+Time [2023-12-20 04:11:16,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 3387 Invalid, 5859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1671 Valid, 4161 Invalid, 27 Unknown, 0 Unchecked, 108.3s Time] [2023-12-20 04:11:16,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2023-12-20 04:11:16,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 766. [2023-12-20 04:11:16,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 474 states have (on average 1.1666666666666667) internal successors, (553), 494 states have internal predecessors, (553), 230 states have call successors, (230), 48 states have call predecessors, (230), 61 states have return successors, (246), 223 states have call predecessors, (246), 230 states have call successors, (246) [2023-12-20 04:11:16,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1029 transitions. [2023-12-20 04:11:16,977 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1029 transitions. Word has length 421 [2023-12-20 04:11:16,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:11:16,978 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 1029 transitions. [2023-12-20 04:11:16,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 35 states have (on average 4.542857142857143) internal successors, (159), 32 states have internal predecessors, (159), 19 states have call successors, (125), 12 states have call predecessors, (125), 14 states have return successors, (123), 16 states have call predecessors, (123), 19 states have call successors, (123) [2023-12-20 04:11:16,978 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1029 transitions. [2023-12-20 04:11:16,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2023-12-20 04:11:16,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:11:16,981 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 21, 7, 7, 7, 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, 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 04:11:16,998 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 04:11:17,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-20 04:11:17,197 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:11:17,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:11:17,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1683606291, now seen corresponding path program 1 times [2023-12-20 04:11:17,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:11:17,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436401621] [2023-12-20 04:11:17,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:11:17,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:11:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:19,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:11:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:19,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:11:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:19,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:19,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:11:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 04:11:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 04:11:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 04:11:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:11:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-20 04:11:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 04:11:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:11:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-20 04:11:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-20 04:11:20,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-20 04:11:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 04:11:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-20 04:11:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-20 04:11:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-20 04:11:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-20 04:11:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-20 04:11:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-20 04:11:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-20 04:11:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-20 04:11:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-20 04:11:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-20 04:11:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-20 04:11:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 04:11:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-20 04:11:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-20 04:11:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-20 04:11:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 04:11:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-20 04:11:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 04:11:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-20 04:11:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-20 04:11:20,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-20 04:11:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-20 04:11:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-20 04:11:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-12-20 04:11:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-20 04:11:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-12-20 04:11:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2023-12-20 04:11:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-20 04:11:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-20 04:11:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 04:11:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-20 04:11:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-12-20 04:11:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-12-20 04:11:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-12-20 04:11:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-20 04:11:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-12-20 04:11:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2023-12-20 04:11:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2023-12-20 04:11:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2023-12-20 04:11:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2023-12-20 04:11:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2023-12-20 04:11:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2023-12-20 04:11:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2023-12-20 04:11:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2023-12-20 04:11:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:20,263 INFO L134 CoverageAnalysis]: Checked inductivity of 5987 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 5981 trivial. 0 not checked. [2023-12-20 04:11:20,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:11:20,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436401621] [2023-12-20 04:11:20,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436401621] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:11:20,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033233706] [2023-12-20 04:11:20,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:11:20,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:11:20,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:11:20,265 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 04:11:20,267 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 04:11:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:11:34,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 2913 conjuncts, 61 conjunts are in the unsatisfiable core [2023-12-20 04:11:34,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:11:34,128 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 04:11:34,295 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 04:11:34,391 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 04:11:34,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-20 04:11:34,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:11:34,475 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 18 treesize of output 20 [2023-12-20 04:11:34,966 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 04:11:34,971 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 11 treesize of output 7 [2023-12-20 04:11:34,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-12-20 04:11:35,057 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 24 treesize of output 18 [2023-12-20 04:11:35,060 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 17 treesize of output 13 [2023-12-20 04:11:35,073 INFO L134 CoverageAnalysis]: Checked inductivity of 5987 backedges. 1004 proven. 28 refuted. 0 times theorem prover too weak. 4955 trivial. 0 not checked. [2023-12-20 04:11:35,073 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:11:35,316 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 33 treesize of output 29 [2023-12-20 04:11:35,321 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 31 treesize of output 27 [2023-12-20 04:11:35,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-12-20 04:11:35,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-12-20 04:11:35,936 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-20 04:11:35,942 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 22 treesize of output 20 [2023-12-20 04:11:36,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-12-20 04:11:36,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-12-20 04:11:36,332 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 22 treesize of output 20 [2023-12-20 04:11:36,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-12-20 04:11:36,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-12-20 04:11:36,559 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 24 [2023-12-20 04:11:37,346 INFO L134 CoverageAnalysis]: Checked inductivity of 5987 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 5979 trivial. 0 not checked. [2023-12-20 04:11:37,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033233706] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:11:37,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:11:37,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19, 17] total 43 [2023-12-20 04:11:37,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982023948] [2023-12-20 04:11:37,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:11:37,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-12-20 04:11:37,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:11:37,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-12-20 04:11:37,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=1606, Unknown=0, NotChecked=0, Total=1806 [2023-12-20 04:11:37,349 INFO L87 Difference]: Start difference. First operand 766 states and 1029 transitions. Second operand has 43 states, 42 states have (on average 4.071428571428571) internal successors, (171), 38 states have internal predecessors, (171), 20 states have call successors, (126), 14 states have call predecessors, (126), 16 states have return successors, (125), 20 states have call predecessors, (125), 20 states have call successors, (125) [2023-12-20 04:11:41,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:45,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:49,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:53,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:57,556 WARN L539 Checker$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 04:12:01,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:05,576 WARN L539 Checker$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 04:12:09,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:13,590 WARN L539 Checker$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 04:12:17,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:21,604 WARN L539 Checker$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 04:12:25,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:29,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:33,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:37,634 WARN L539 Checker$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 04:12:41,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:45,659 WARN L539 Checker$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 04:12:49,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:53,675 WARN L539 Checker$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 04:12:57,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:13:01,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-20 04:13:02,246 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-20 04:13:02,247 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 04:13:03,447 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 04:13:03,449 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forcibly destroying the process [2023-12-20 04:13:03,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 976 GetRequests, 935 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=200, Invalid=1606, Unknown=0, NotChecked=0, Total=1806 [2023-12-20 04:13:03,461 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84.3s IncrementalHoareTripleChecker+Time [2023-12-20 04:13:03,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 56 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 21 Unknown, 0 Unchecked, 84.3s Time] [2023-12-20 04:13:03,462 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 04:13:03,469 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 04:13:03,470 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,SelfDestructingSolverStorable14 [2023-12-20 04:13:03,470 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 04:13:03,471 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-20 04:13:03,474 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:13:03,476 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 04:13:03,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 04:13:03 BoogieIcfgContainer [2023-12-20 04:13:03,478 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 04:13:03,478 INFO L158 Benchmark]: Toolchain (without parser) took 856065.08ms. Allocated memory was 177.2MB in the beginning and 780.1MB in the end (delta: 602.9MB). Free memory was 126.5MB in the beginning and 376.1MB in the end (delta: -249.6MB). Peak memory consumption was 354.9MB. Max. memory is 8.0GB. [2023-12-20 04:13:03,478 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 177.2MB. Free memory is still 132.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 04:13:03,478 INFO L158 Benchmark]: CACSL2BoogieTranslator took 544.12ms. Allocated memory is still 177.2MB. Free memory was 126.5MB in the beginning and 95.7MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-20 04:13:03,478 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.51ms. Allocated memory is still 177.2MB. Free memory was 95.7MB in the beginning and 144.4MB in the end (delta: -48.6MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. [2023-12-20 04:13:03,478 INFO L158 Benchmark]: Boogie Preprocessor took 154.41ms. Allocated memory is still 177.2MB. Free memory was 144.4MB in the beginning and 134.9MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-20 04:13:03,478 INFO L158 Benchmark]: RCFGBuilder took 4922.56ms. Allocated memory is still 177.2MB. Free memory was 134.9MB in the beginning and 56.3MB in the end (delta: 78.6MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. [2023-12-20 04:13:03,478 INFO L158 Benchmark]: TraceAbstraction took 850348.24ms. Allocated memory was 177.2MB in the beginning and 780.1MB in the end (delta: 602.9MB). Free memory was 55.8MB in the beginning and 376.1MB in the end (delta: -320.3MB). Peak memory consumption was 283.1MB. Max. memory is 8.0GB. [2023-12-20 04:13:03,479 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 177.2MB. Free memory is still 132.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 544.12ms. Allocated memory is still 177.2MB. Free memory was 126.5MB in the beginning and 95.7MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 91.51ms. Allocated memory is still 177.2MB. Free memory was 95.7MB in the beginning and 144.4MB in the end (delta: -48.6MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 154.41ms. Allocated memory is still 177.2MB. Free memory was 144.4MB in the beginning and 134.9MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 4922.56ms. Allocated memory is still 177.2MB. Free memory was 134.9MB in the beginning and 56.3MB in the end (delta: 78.6MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. * TraceAbstraction took 850348.24ms. Allocated memory was 177.2MB in the beginning and 780.1MB in the end (delta: 602.9MB). Free memory was 55.8MB in the beginning and 376.1MB in the end (delta: -320.3MB). Peak memory consumption was 283.1MB. 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 5 procedures, 179 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 850.3s, OverallIterations: 15, TraceHistogramMax: 55, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 676.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 151 mSolverCounterUnknown, 10159 SdHoareTripleChecker+Valid, 640.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9732 mSDsluCounter, 26027 SdHoareTripleChecker+Invalid, 635.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21846 mSDsCounter, 9591 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29454 IncrementalHoareTripleChecker+Invalid, 39197 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9591 mSolverCounterUnsat, 4181 mSDtfsCounter, 29454 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9611 GetRequests, 9049 SyntacticMatches, 13 SemanticMatches, 549 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13019 ImplicationChecksByTransitivity, 70.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2047occurred in iteration=13, InterpolantAutomatonStates: 360, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 2186 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.3s SsaConstructionTime, 93.9s SatisfiabilityAnalysisTime, 64.8s InterpolantComputationTime, 9583 NumberOfCodeBlocks, 9295 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 12709 ConstructedInterpolants, 45 QuantifiedInterpolants, 29690 SizeOfPredicates, 58 NumberOfNonLiveVariables, 24043 ConjunctsInSsa, 296 ConjunctsInUnsatCore, 33 InterpolantComputations, 6 PerfectInterpolantSequences, 182554/183163 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