/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 13:10:50,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 13:10:50,220 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 13:10:50,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 13:10:50,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 13:10:50,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 13:10:50,248 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 13:10:50,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 13:10:50,248 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 13:10:50,251 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 13:10:50,252 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 13:10:50,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 13:10:50,253 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 13:10:50,254 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 13:10:50,254 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 13:10:50,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 13:10:50,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 13:10:50,254 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 13:10:50,255 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 13:10:50,256 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 13:10:50,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 13:10:50,256 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 13:10:50,256 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 13:10:50,256 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 13:10:50,257 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 13:10:50,257 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 13:10:50,257 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 13:10:50,257 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 13:10:50,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 13:10:50,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 13:10:50,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 13:10:50,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 13:10:50,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 13:10:50,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 13:10:50,259 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 13:10:50,259 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 13:10:50,260 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 13:10:50,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 13:10:50,260 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 13:10:50,260 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 13:10:50,260 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 13:10:50,260 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 13:10:50,261 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 13:10:50,261 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 13:10:50,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 13:10:50,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 13:10:50,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 13:10:50,480 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 13:10:50,482 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 13:10:50,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-21 13:10:51,584 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 13:10:51,868 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 13:10:51,869 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-21 13:10:51,887 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8592363b3/2b7dd1d1bdc349c4913fbf66c0776667/FLAG227b182f8 [2023-12-21 13:10:51,901 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8592363b3/2b7dd1d1bdc349c4913fbf66c0776667 [2023-12-21 13:10:51,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 13:10:51,904 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 13:10:51,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 13:10:51,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 13:10:51,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 13:10:51,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:10:51" (1/1) ... [2023-12-21 13:10:51,911 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13f5dcf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:10:51, skipping insertion in model container [2023-12-21 13:10:51,911 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:10:51" (1/1) ... [2023-12-21 13:10:52,010 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 13:10:52,430 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[31682,31695] [2023-12-21 13:10:52,443 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[32572,32585] [2023-12-21 13:10:52,461 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[34231,34244] [2023-12-21 13:10:52,472 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[35121,35134] [2023-12-21 13:10:52,509 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[37552,37565] [2023-12-21 13:10:52,545 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[38445,38458] [2023-12-21 13:10:52,578 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[40107,40120] [2023-12-21 13:10:52,592 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[41468,41481] [2023-12-21 13:10:52,674 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[55332,55345] [2023-12-21 13:10:52,685 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[56225,56238] [2023-12-21 13:10:52,701 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[57887,57900] [2023-12-21 13:10:52,735 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[62044,62057] [2023-12-21 13:10:52,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 13:10:52,841 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 13:10:52,973 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[31682,31695] [2023-12-21 13:10:52,981 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[32572,32585] [2023-12-21 13:10:52,996 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[34231,34244] [2023-12-21 13:10:53,004 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[35121,35134] [2023-12-21 13:10:53,028 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[37552,37565] [2023-12-21 13:10:53,037 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[38445,38458] [2023-12-21 13:10:53,054 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[40107,40120] [2023-12-21 13:10:53,065 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[41468,41481] [2023-12-21 13:10:53,132 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[55332,55345] [2023-12-21 13:10:53,140 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[56225,56238] [2023-12-21 13:10:53,159 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[57887,57900] [2023-12-21 13:10:53,185 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-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[62044,62057] [2023-12-21 13:10:53,246 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 13:10:53,263 INFO L206 MainTranslator]: Completed translation [2023-12-21 13:10:53,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:10:53 WrapperNode [2023-12-21 13:10:53,264 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 13:10:53,265 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 13:10:53,265 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 13:10:53,265 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 13:10:53,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:10:53" (1/1) ... [2023-12-21 13:10:53,300 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:10:53" (1/1) ... [2023-12-21 13:10:53,379 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3941 [2023-12-21 13:10:53,379 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 13:10:53,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 13:10:53,380 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 13:10:53,380 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 13:10:53,388 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:10:53" (1/1) ... [2023-12-21 13:10:53,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:10:53" (1/1) ... [2023-12-21 13:10:53,399 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:10:53" (1/1) ... [2023-12-21 13:10:53,443 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-21 13:10:53,443 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:10:53" (1/1) ... [2023-12-21 13:10:53,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:10:53" (1/1) ... [2023-12-21 13:10:53,474 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:10:53" (1/1) ... [2023-12-21 13:10:53,496 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:10:53" (1/1) ... [2023-12-21 13:10:53,503 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:10:53" (1/1) ... [2023-12-21 13:10:53,518 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:10:53" (1/1) ... [2023-12-21 13:10:53,534 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 13:10:53,535 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 13:10:53,535 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 13:10:53,535 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 13:10:53,536 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:10:53" (1/1) ... [2023-12-21 13:10:53,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 13:10:53,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:10:53,561 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) [2023-12-21 13:10:53,580 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 [2023-12-21 13:10:53,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 13:10:53,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 13:10:53,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 13:10:53,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 13:10:53,782 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 13:10:53,784 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 13:10:55,382 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 13:10:55,420 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 13:10:55,420 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-21 13:10:55,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:10:55 BoogieIcfgContainer [2023-12-21 13:10:55,420 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 13:10:55,422 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 13:10:55,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 13:10:55,424 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 13:10:55,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:10:51" (1/3) ... [2023-12-21 13:10:55,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a0a9401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:10:55, skipping insertion in model container [2023-12-21 13:10:55,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:10:53" (2/3) ... [2023-12-21 13:10:55,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a0a9401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:10:55, skipping insertion in model container [2023-12-21 13:10:55,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:10:55" (3/3) ... [2023-12-21 13:10:55,426 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-21 13:10:55,438 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 13:10:55,439 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-12-21 13:10:55,482 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 13:10:55,486 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;@495741c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 13:10:55,487 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-12-21 13:10:55,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 903 states, 890 states have (on average 1.8325842696629213) internal successors, (1631), 902 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:55,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-12-21 13:10:55,509 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:10:55,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:10:55,511 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-21 13:10:55,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:10:55,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1473281420, now seen corresponding path program 1 times [2023-12-21 13:10:55,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:10:55,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939486097] [2023-12-21 13:10:55,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:10:55,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:10:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:10:56,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:10:56,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:10:56,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939486097] [2023-12-21 13:10:56,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939486097] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:10:56,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:10:56,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:10:56,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724810778] [2023-12-21 13:10:56,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:10:56,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:10:56,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:10:56,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:10:56,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:10:56,129 INFO L87 Difference]: Start difference. First operand has 903 states, 890 states have (on average 1.8325842696629213) internal successors, (1631), 902 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:56,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:10:56,347 INFO L93 Difference]: Finished difference Result 1556 states and 2790 transitions. [2023-12-21 13:10:56,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:10:56,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 297 [2023-12-21 13:10:56,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:10:56,370 INFO L225 Difference]: With dead ends: 1556 [2023-12-21 13:10:56,370 INFO L226 Difference]: Without dead ends: 1305 [2023-12-21 13:10:56,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:10:56,378 INFO L413 NwaCegarLoop]: 1765 mSDtfsCounter, 856 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 2947 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:10:56,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 2947 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:10:56,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2023-12-21 13:10:56,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1303. [2023-12-21 13:10:56,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1291 states have (on average 1.5476374903175834) internal successors, (1998), 1302 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:56,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1998 transitions. [2023-12-21 13:10:56,460 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1998 transitions. Word has length 297 [2023-12-21 13:10:56,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:10:56,461 INFO L495 AbstractCegarLoop]: Abstraction has 1303 states and 1998 transitions. [2023-12-21 13:10:56,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:56,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1998 transitions. [2023-12-21 13:10:56,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-12-21 13:10:56,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:10:56,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:10:56,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 13:10:56,469 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-21 13:10:56,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:10:56,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1297278548, now seen corresponding path program 1 times [2023-12-21 13:10:56,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:10:56,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248894638] [2023-12-21 13:10:56,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:10:56,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:10:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:10:56,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:10:56,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:10:56,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248894638] [2023-12-21 13:10:56,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248894638] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:10:56,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:10:56,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:10:56,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88838433] [2023-12-21 13:10:56,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:10:56,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:10:56,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:10:56,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:10:56,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:10:56,786 INFO L87 Difference]: Start difference. First operand 1303 states and 1998 transitions. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:56,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:10:56,941 INFO L93 Difference]: Finished difference Result 2482 states and 3849 transitions. [2023-12-21 13:10:56,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:10:56,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 297 [2023-12-21 13:10:56,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:10:56,948 INFO L225 Difference]: With dead ends: 2482 [2023-12-21 13:10:56,949 INFO L226 Difference]: Without dead ends: 2129 [2023-12-21 13:10:56,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:10:56,954 INFO L413 NwaCegarLoop]: 1508 mSDtfsCounter, 711 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:10:56,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 2530 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:10:56,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2129 states. [2023-12-21 13:10:56,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2129 to 2127. [2023-12-21 13:10:56,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2127 states, 2115 states have (on average 1.5484633569739952) internal successors, (3275), 2126 states have internal predecessors, (3275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:57,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 3275 transitions. [2023-12-21 13:10:57,004 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 3275 transitions. Word has length 297 [2023-12-21 13:10:57,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:10:57,005 INFO L495 AbstractCegarLoop]: Abstraction has 2127 states and 3275 transitions. [2023-12-21 13:10:57,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:57,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 3275 transitions. [2023-12-21 13:10:57,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-12-21 13:10:57,009 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:10:57,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:10:57,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 13:10:57,012 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-21 13:10:57,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:10:57,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1703545708, now seen corresponding path program 1 times [2023-12-21 13:10:57,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:10:57,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854115945] [2023-12-21 13:10:57,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:10:57,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:10:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:10:57,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:10:57,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:10:57,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854115945] [2023-12-21 13:10:57,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854115945] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:10:57,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:10:57,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:10:57,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261471813] [2023-12-21 13:10:57,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:10:57,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:10:57,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:10:57,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:10:57,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:10:57,285 INFO L87 Difference]: Start difference. First operand 2127 states and 3275 transitions. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:57,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:10:57,497 INFO L93 Difference]: Finished difference Result 4386 states and 6840 transitions. [2023-12-21 13:10:57,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:10:57,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 297 [2023-12-21 13:10:57,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:10:57,508 INFO L225 Difference]: With dead ends: 4386 [2023-12-21 13:10:57,509 INFO L226 Difference]: Without dead ends: 3817 [2023-12-21 13:10:57,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:10:57,512 INFO L413 NwaCegarLoop]: 1480 mSDtfsCounter, 753 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 2521 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:10:57,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 2521 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:10:57,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3817 states. [2023-12-21 13:10:57,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3817 to 3815. [2023-12-21 13:10:57,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3815 states, 3803 states have (on average 1.5500920326058374) internal successors, (5895), 3814 states have internal predecessors, (5895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:57,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3815 states to 3815 states and 5895 transitions. [2023-12-21 13:10:57,577 INFO L78 Accepts]: Start accepts. Automaton has 3815 states and 5895 transitions. Word has length 297 [2023-12-21 13:10:57,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:10:57,577 INFO L495 AbstractCegarLoop]: Abstraction has 3815 states and 5895 transitions. [2023-12-21 13:10:57,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:57,578 INFO L276 IsEmpty]: Start isEmpty. Operand 3815 states and 5895 transitions. [2023-12-21 13:10:57,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-12-21 13:10:57,583 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:10:57,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:10:57,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 13:10:57,583 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-21 13:10:57,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:10:57,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1703114732, now seen corresponding path program 1 times [2023-12-21 13:10:57,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:10:57,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416396619] [2023-12-21 13:10:57,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:10:57,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:10:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:10:58,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:10:58,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:10:58,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416396619] [2023-12-21 13:10:58,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416396619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:10:58,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:10:58,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:10:58,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525436938] [2023-12-21 13:10:58,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:10:58,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:10:58,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:10:58,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:10:58,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:10:58,153 INFO L87 Difference]: Start difference. First operand 3815 states and 5895 transitions. Second operand has 4 states, 4 states have (on average 74.25) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:58,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:10:58,306 INFO L93 Difference]: Finished difference Result 11292 states and 17432 transitions. [2023-12-21 13:10:58,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:10:58,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 297 [2023-12-21 13:10:58,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:10:58,327 INFO L225 Difference]: With dead ends: 11292 [2023-12-21 13:10:58,327 INFO L226 Difference]: Without dead ends: 7487 [2023-12-21 13:10:58,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:10:58,335 INFO L413 NwaCegarLoop]: 2356 mSDtfsCounter, 2915 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2915 SdHoareTripleChecker+Valid, 3661 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:10:58,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2915 Valid, 3661 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:10:58,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7487 states. [2023-12-21 13:10:58,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7487 to 7311. [2023-12-21 13:10:58,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7311 states, 7299 states have (on average 1.5411700232908618) internal successors, (11249), 7310 states have internal predecessors, (11249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:58,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7311 states to 7311 states and 11249 transitions. [2023-12-21 13:10:58,478 INFO L78 Accepts]: Start accepts. Automaton has 7311 states and 11249 transitions. Word has length 297 [2023-12-21 13:10:58,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:10:58,478 INFO L495 AbstractCegarLoop]: Abstraction has 7311 states and 11249 transitions. [2023-12-21 13:10:58,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:58,480 INFO L276 IsEmpty]: Start isEmpty. Operand 7311 states and 11249 transitions. [2023-12-21 13:10:58,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2023-12-21 13:10:58,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:10:58,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:10:58,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 13:10:58,492 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-21 13:10:58,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:10:58,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1144625924, now seen corresponding path program 1 times [2023-12-21 13:10:58,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:10:58,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512564854] [2023-12-21 13:10:58,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:10:58,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:10:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:10:58,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:10:58,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:10:58,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512564854] [2023-12-21 13:10:58,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512564854] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:10:58,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:10:58,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:10:58,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560558933] [2023-12-21 13:10:58,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:10:58,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:10:58,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:10:58,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:10:58,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:10:58,654 INFO L87 Difference]: Start difference. First operand 7311 states and 11249 transitions. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:58,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:10:58,779 INFO L93 Difference]: Finished difference Result 21531 states and 33071 transitions. [2023-12-21 13:10:58,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:10:58,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 299 [2023-12-21 13:10:58,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:10:58,831 INFO L225 Difference]: With dead ends: 21531 [2023-12-21 13:10:58,831 INFO L226 Difference]: Without dead ends: 14344 [2023-12-21 13:10:58,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:10:58,845 INFO L413 NwaCegarLoop]: 2620 mSDtfsCounter, 1236 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 3935 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:10:58,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1236 Valid, 3935 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:10:58,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14344 states. [2023-12-21 13:10:59,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14344 to 14168. [2023-12-21 13:10:59,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14168 states, 14156 states have (on average 1.5315060751624752) internal successors, (21680), 14167 states have internal predecessors, (21680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:59,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14168 states to 14168 states and 21680 transitions. [2023-12-21 13:10:59,156 INFO L78 Accepts]: Start accepts. Automaton has 14168 states and 21680 transitions. Word has length 299 [2023-12-21 13:10:59,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:10:59,156 INFO L495 AbstractCegarLoop]: Abstraction has 14168 states and 21680 transitions. [2023-12-21 13:10:59,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:59,157 INFO L276 IsEmpty]: Start isEmpty. Operand 14168 states and 21680 transitions. [2023-12-21 13:10:59,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2023-12-21 13:10:59,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:10:59,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:10:59,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 13:10:59,174 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-21 13:10:59,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:10:59,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1818615231, now seen corresponding path program 1 times [2023-12-21 13:10:59,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:10:59,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071479702] [2023-12-21 13:10:59,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:10:59,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:10:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:10:59,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:10:59,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:10:59,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071479702] [2023-12-21 13:10:59,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071479702] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:10:59,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:10:59,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:10:59,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234862143] [2023-12-21 13:10:59,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:10:59,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:10:59,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:10:59,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:10:59,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:10:59,265 INFO L87 Difference]: Start difference. First operand 14168 states and 21680 transitions. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:59,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:10:59,480 INFO L93 Difference]: Finished difference Result 42439 states and 64926 transitions. [2023-12-21 13:10:59,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:10:59,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 299 [2023-12-21 13:10:59,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:10:59,537 INFO L225 Difference]: With dead ends: 42439 [2023-12-21 13:10:59,537 INFO L226 Difference]: Without dead ends: 28308 [2023-12-21 13:10:59,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:10:59,558 INFO L413 NwaCegarLoop]: 2726 mSDtfsCounter, 1361 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 4087 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:10:59,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 4087 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:10:59,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28308 states. [2023-12-21 13:10:59,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28308 to 14187. [2023-12-21 13:10:59,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14187 states, 14175 states have (on average 1.5314285714285714) internal successors, (21708), 14186 states have internal predecessors, (21708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:59,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14187 states to 14187 states and 21708 transitions. [2023-12-21 13:10:59,998 INFO L78 Accepts]: Start accepts. Automaton has 14187 states and 21708 transitions. Word has length 299 [2023-12-21 13:10:59,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:10:59,998 INFO L495 AbstractCegarLoop]: Abstraction has 14187 states and 21708 transitions. [2023-12-21 13:10:59,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:10:59,998 INFO L276 IsEmpty]: Start isEmpty. Operand 14187 states and 21708 transitions. [2023-12-21 13:11:00,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2023-12-21 13:11:00,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:11:00,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:11:00,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 13:11:00,017 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-21 13:11:00,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:11:00,017 INFO L85 PathProgramCache]: Analyzing trace with hash -116183700, now seen corresponding path program 1 times [2023-12-21 13:11:00,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:11:00,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986277687] [2023-12-21 13:11:00,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:11:00,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:11:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:11:00,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:11:00,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:11:00,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986277687] [2023-12-21 13:11:00,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986277687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:11:00,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:11:00,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:11:00,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571024585] [2023-12-21 13:11:00,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:11:00,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:11:00,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:11:00,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:11:00,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:11:00,118 INFO L87 Difference]: Start difference. First operand 14187 states and 21708 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:00,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:11:00,393 INFO L93 Difference]: Finished difference Result 42458 states and 64947 transitions. [2023-12-21 13:11:00,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:11:00,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 300 [2023-12-21 13:11:00,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:11:00,441 INFO L225 Difference]: With dead ends: 42458 [2023-12-21 13:11:00,441 INFO L226 Difference]: Without dead ends: 28326 [2023-12-21 13:11:00,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:11:00,456 INFO L413 NwaCegarLoop]: 2726 mSDtfsCounter, 1356 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 4087 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:11:00,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1356 Valid, 4087 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:11:00,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28326 states. [2023-12-21 13:11:00,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28326 to 14205. [2023-12-21 13:11:00,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14205 states, 14193 states have (on average 1.5309659691397168) internal successors, (21729), 14204 states have internal predecessors, (21729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:00,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14205 states to 14205 states and 21729 transitions. [2023-12-21 13:11:00,786 INFO L78 Accepts]: Start accepts. Automaton has 14205 states and 21729 transitions. Word has length 300 [2023-12-21 13:11:00,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:11:00,786 INFO L495 AbstractCegarLoop]: Abstraction has 14205 states and 21729 transitions. [2023-12-21 13:11:00,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:00,787 INFO L276 IsEmpty]: Start isEmpty. Operand 14205 states and 21729 transitions. [2023-12-21 13:11:00,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2023-12-21 13:11:00,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:11:00,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:11:00,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 13:11:00,805 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-21 13:11:00,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:11:00,805 INFO L85 PathProgramCache]: Analyzing trace with hash 706654359, now seen corresponding path program 1 times [2023-12-21 13:11:00,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:11:00,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068654724] [2023-12-21 13:11:00,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:11:00,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:11:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:11:01,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:11:01,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:11:01,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068654724] [2023-12-21 13:11:01,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068654724] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:11:01,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:11:01,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:11:01,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242623209] [2023-12-21 13:11:01,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:11:01,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:11:01,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:11:01,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:11:01,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:11:01,065 INFO L87 Difference]: Start difference. First operand 14205 states and 21729 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:01,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:11:01,200 INFO L93 Difference]: Finished difference Result 40190 states and 61338 transitions. [2023-12-21 13:11:01,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:11:01,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 301 [2023-12-21 13:11:01,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:11:01,245 INFO L225 Difference]: With dead ends: 40190 [2023-12-21 13:11:01,245 INFO L226 Difference]: Without dead ends: 26225 [2023-12-21 13:11:01,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:11:01,267 INFO L413 NwaCegarLoop]: 2671 mSDtfsCounter, 1230 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 3986 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:11:01,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1230 Valid, 3986 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:11:01,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26225 states. [2023-12-21 13:11:01,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26225 to 26049. [2023-12-21 13:11:01,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26049 states, 26037 states have (on average 1.5184161001651495) internal successors, (39535), 26048 states have internal predecessors, (39535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:01,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26049 states to 26049 states and 39535 transitions. [2023-12-21 13:11:01,705 INFO L78 Accepts]: Start accepts. Automaton has 26049 states and 39535 transitions. Word has length 301 [2023-12-21 13:11:01,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:11:01,705 INFO L495 AbstractCegarLoop]: Abstraction has 26049 states and 39535 transitions. [2023-12-21 13:11:01,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:01,705 INFO L276 IsEmpty]: Start isEmpty. Operand 26049 states and 39535 transitions. [2023-12-21 13:11:01,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2023-12-21 13:11:01,736 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:11:01,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:11:01,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 13:11:01,737 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-21 13:11:01,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:11:01,737 INFO L85 PathProgramCache]: Analyzing trace with hash -429202636, now seen corresponding path program 1 times [2023-12-21 13:11:01,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:11:01,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547432764] [2023-12-21 13:11:01,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:11:01,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:11:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:11:02,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:11:02,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:11:02,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547432764] [2023-12-21 13:11:02,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547432764] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:11:02,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:11:02,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:11:02,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495107659] [2023-12-21 13:11:02,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:11:02,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:11:02,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:11:02,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:11:02,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:11:02,287 INFO L87 Difference]: Start difference. First operand 26049 states and 39535 transitions. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:02,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:11:02,533 INFO L93 Difference]: Finished difference Result 76818 states and 116430 transitions. [2023-12-21 13:11:02,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:11:02,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 301 [2023-12-21 13:11:02,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:11:02,625 INFO L225 Difference]: With dead ends: 76818 [2023-12-21 13:11:02,625 INFO L226 Difference]: Without dead ends: 50823 [2023-12-21 13:11:02,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:11:02,661 INFO L413 NwaCegarLoop]: 2288 mSDtfsCounter, 2645 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2645 SdHoareTripleChecker+Valid, 4882 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:11:02,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2645 Valid, 4882 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:11:02,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50823 states. [2023-12-21 13:11:03,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50823 to 50667. [2023-12-21 13:11:03,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50667 states, 50655 states have (on average 1.5065442700621854) internal successors, (76314), 50666 states have internal predecessors, (76314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:03,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50667 states to 50667 states and 76314 transitions. [2023-12-21 13:11:03,779 INFO L78 Accepts]: Start accepts. Automaton has 50667 states and 76314 transitions. Word has length 301 [2023-12-21 13:11:03,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:11:03,779 INFO L495 AbstractCegarLoop]: Abstraction has 50667 states and 76314 transitions. [2023-12-21 13:11:03,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:03,780 INFO L276 IsEmpty]: Start isEmpty. Operand 50667 states and 76314 transitions. [2023-12-21 13:11:03,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2023-12-21 13:11:03,831 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:11:03,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:11:03,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 13:11:03,832 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-21 13:11:03,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:11:03,832 INFO L85 PathProgramCache]: Analyzing trace with hash 470640034, now seen corresponding path program 1 times [2023-12-21 13:11:03,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:11:03,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223955664] [2023-12-21 13:11:03,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:11:03,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:11:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:11:04,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:11:04,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:11:04,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223955664] [2023-12-21 13:11:04,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223955664] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:11:04,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:11:04,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:11:04,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693537794] [2023-12-21 13:11:04,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:11:04,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:11:04,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:11:04,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:11:04,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:11:04,388 INFO L87 Difference]: Start difference. First operand 50667 states and 76314 transitions. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:04,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:11:04,845 INFO L93 Difference]: Finished difference Result 149737 states and 225308 transitions. [2023-12-21 13:11:04,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:11:04,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 303 [2023-12-21 13:11:04,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:11:05,046 INFO L225 Difference]: With dead ends: 149737 [2023-12-21 13:11:05,046 INFO L226 Difference]: Without dead ends: 99266 [2023-12-21 13:11:05,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:11:05,107 INFO L413 NwaCegarLoop]: 2339 mSDtfsCounter, 2862 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2862 SdHoareTripleChecker+Valid, 3648 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:11:05,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2862 Valid, 3648 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:11:05,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99266 states. [2023-12-21 13:11:06,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99266 to 99074. [2023-12-21 13:11:06,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99074 states, 99062 states have (on average 1.4962952494397448) internal successors, (148226), 99073 states have internal predecessors, (148226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:07,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99074 states to 99074 states and 148226 transitions. [2023-12-21 13:11:07,263 INFO L78 Accepts]: Start accepts. Automaton has 99074 states and 148226 transitions. Word has length 303 [2023-12-21 13:11:07,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:11:07,264 INFO L495 AbstractCegarLoop]: Abstraction has 99074 states and 148226 transitions. [2023-12-21 13:11:07,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:07,264 INFO L276 IsEmpty]: Start isEmpty. Operand 99074 states and 148226 transitions. [2023-12-21 13:11:07,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2023-12-21 13:11:07,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:11:07,349 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:11:07,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 13:11:07,349 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-21 13:11:07,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:11:07,350 INFO L85 PathProgramCache]: Analyzing trace with hash -747780818, now seen corresponding path program 1 times [2023-12-21 13:11:07,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:11:07,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193875393] [2023-12-21 13:11:07,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:11:07,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:11:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:11:07,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:11:07,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:11:07,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193875393] [2023-12-21 13:11:07,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193875393] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:11:07,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:11:07,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:11:07,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983054573] [2023-12-21 13:11:07,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:11:07,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:11:07,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:11:07,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:11:07,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:11:07,455 INFO L87 Difference]: Start difference. First operand 99074 states and 148226 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:08,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:11:08,494 INFO L93 Difference]: Finished difference Result 296704 states and 443844 transitions. [2023-12-21 13:11:08,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:11:08,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 305 [2023-12-21 13:11:08,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:11:08,886 INFO L225 Difference]: With dead ends: 296704 [2023-12-21 13:11:08,886 INFO L226 Difference]: Without dead ends: 197914 [2023-12-21 13:11:09,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:11:09,017 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 1328 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 4054 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:11:09,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1328 Valid, 4054 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:11:09,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197914 states. [2023-12-21 13:11:11,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197914 to 99204. [2023-12-21 13:11:11,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99204 states, 99192 states have (on average 1.4962496975562545) internal successors, (148416), 99203 states have internal predecessors, (148416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:11,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99204 states to 99204 states and 148416 transitions. [2023-12-21 13:11:11,544 INFO L78 Accepts]: Start accepts. Automaton has 99204 states and 148416 transitions. Word has length 305 [2023-12-21 13:11:11,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:11:11,545 INFO L495 AbstractCegarLoop]: Abstraction has 99204 states and 148416 transitions. [2023-12-21 13:11:11,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:11,545 INFO L276 IsEmpty]: Start isEmpty. Operand 99204 states and 148416 transitions. [2023-12-21 13:11:11,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2023-12-21 13:11:11,633 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:11:11,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:11:11,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 13:11:11,633 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-21 13:11:11,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:11:11,634 INFO L85 PathProgramCache]: Analyzing trace with hash 398815273, now seen corresponding path program 1 times [2023-12-21 13:11:11,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:11:11,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500905793] [2023-12-21 13:11:11,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:11:11,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:11:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:11:11,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:11:11,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:11:11,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500905793] [2023-12-21 13:11:11,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500905793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:11:11,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:11:11,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:11:11,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959086132] [2023-12-21 13:11:11,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:11:11,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:11:11,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:11:11,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:11:11,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:11:11,994 INFO L87 Difference]: Start difference. First operand 99204 states and 148416 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:12,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:11:12,926 INFO L93 Difference]: Finished difference Result 292574 states and 437120 transitions. [2023-12-21 13:11:12,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:11:12,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 305 [2023-12-21 13:11:12,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:11:13,250 INFO L225 Difference]: With dead ends: 292574 [2023-12-21 13:11:13,251 INFO L226 Difference]: Without dead ends: 194392 [2023-12-21 13:11:13,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:11:13,385 INFO L413 NwaCegarLoop]: 2627 mSDtfsCounter, 1212 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:11:13,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 3946 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:11:13,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194392 states. [2023-12-21 13:11:15,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194392 to 194200. [2023-12-21 13:11:16,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194200 states, 194188 states have (on average 1.4860547510659774) internal successors, (288574), 194199 states have internal predecessors, (288574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:16,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194200 states to 194200 states and 288574 transitions. [2023-12-21 13:11:16,932 INFO L78 Accepts]: Start accepts. Automaton has 194200 states and 288574 transitions. Word has length 305 [2023-12-21 13:11:16,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:11:16,932 INFO L495 AbstractCegarLoop]: Abstraction has 194200 states and 288574 transitions. [2023-12-21 13:11:16,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:16,932 INFO L276 IsEmpty]: Start isEmpty. Operand 194200 states and 288574 transitions. [2023-12-21 13:11:17,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2023-12-21 13:11:17,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:11:17,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:11:17,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 13:11:17,133 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-21 13:11:17,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:11:17,134 INFO L85 PathProgramCache]: Analyzing trace with hash 801911129, now seen corresponding path program 1 times [2023-12-21 13:11:17,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:11:17,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121762745] [2023-12-21 13:11:17,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:11:17,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:11:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:11:17,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:11:17,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:11:17,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121762745] [2023-12-21 13:11:17,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121762745] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:11:17,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:11:17,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:11:17,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131621579] [2023-12-21 13:11:17,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:11:17,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:11:17,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:11:17,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:11:17,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:11:17,601 INFO L87 Difference]: Start difference. First operand 194200 states and 288574 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:19,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:11:19,509 INFO L93 Difference]: Finished difference Result 581348 states and 863656 transitions. [2023-12-21 13:11:19,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:11:19,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 306 [2023-12-21 13:11:19,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:11:20,287 INFO L225 Difference]: With dead ends: 581348 [2023-12-21 13:11:20,287 INFO L226 Difference]: Without dead ends: 387830 [2023-12-21 13:11:20,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:11:20,514 INFO L413 NwaCegarLoop]: 2691 mSDtfsCounter, 1324 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 4052 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:11:20,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 4052 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:11:20,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387830 states. [2023-12-21 13:11:24,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387830 to 194362. [2023-12-21 13:11:24,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194362 states, 194350 states have (on average 1.4857730897864676) internal successors, (288760), 194361 states have internal predecessors, (288760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:25,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194362 states to 194362 states and 288760 transitions. [2023-12-21 13:11:25,262 INFO L78 Accepts]: Start accepts. Automaton has 194362 states and 288760 transitions. Word has length 306 [2023-12-21 13:11:25,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:11:25,263 INFO L495 AbstractCegarLoop]: Abstraction has 194362 states and 288760 transitions. [2023-12-21 13:11:25,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:25,263 INFO L276 IsEmpty]: Start isEmpty. Operand 194362 states and 288760 transitions. [2023-12-21 13:11:25,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2023-12-21 13:11:25,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:11:25,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:11:25,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 13:11:25,457 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-21 13:11:25,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:11:25,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1231690748, now seen corresponding path program 1 times [2023-12-21 13:11:25,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:11:25,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591122970] [2023-12-21 13:11:25,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:11:25,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:11:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:11:26,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:11:26,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:11:26,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591122970] [2023-12-21 13:11:26,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591122970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:11:26,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:11:26,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:11:26,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818289706] [2023-12-21 13:11:26,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:11:26,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:11:26,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:11:26,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:11:26,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:11:26,115 INFO L87 Difference]: Start difference. First operand 194362 states and 288760 transitions. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:28,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:11:28,229 INFO L93 Difference]: Finished difference Result 573296 states and 850616 transitions. [2023-12-21 13:11:28,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:11:28,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 307 [2023-12-21 13:11:28,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:11:28,825 INFO L225 Difference]: With dead ends: 573296 [2023-12-21 13:11:28,825 INFO L226 Difference]: Without dead ends: 380476 [2023-12-21 13:11:28,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:11:28,969 INFO L413 NwaCegarLoop]: 2653 mSDtfsCounter, 1205 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 3972 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:11:28,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1205 Valid, 3972 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:11:29,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380476 states. [2023-12-21 13:11:34,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380476 to 380284. [2023-12-21 13:11:34,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380284 states, 380272 states have (on average 1.475086254049733) internal successors, (560934), 380283 states have internal predecessors, (560934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:35,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380284 states to 380284 states and 560934 transitions. [2023-12-21 13:11:35,949 INFO L78 Accepts]: Start accepts. Automaton has 380284 states and 560934 transitions. Word has length 307 [2023-12-21 13:11:35,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:11:35,950 INFO L495 AbstractCegarLoop]: Abstraction has 380284 states and 560934 transitions. [2023-12-21 13:11:35,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:35,950 INFO L276 IsEmpty]: Start isEmpty. Operand 380284 states and 560934 transitions. [2023-12-21 13:11:36,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2023-12-21 13:11:36,697 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:11:36,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:11:36,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 13:11:36,705 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-21 13:11:36,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:11:36,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1647284321, now seen corresponding path program 1 times [2023-12-21 13:11:36,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:11:36,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478804481] [2023-12-21 13:11:36,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:11:36,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:11:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:11:37,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:11:37,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:11:37,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478804481] [2023-12-21 13:11:37,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478804481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:11:37,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:11:37,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:11:37,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222456439] [2023-12-21 13:11:37,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:11:37,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:11:37,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:11:37,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:11:37,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:11:37,575 INFO L87 Difference]: Start difference. First operand 380284 states and 560934 transitions. Second operand has 5 states, 5 states have (on average 61.4) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:41,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:11:41,767 INFO L93 Difference]: Finished difference Result 1122010 states and 1652250 transitions. [2023-12-21 13:11:41,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:11:41,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.4) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 307 [2023-12-21 13:11:41,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:11:43,758 INFO L225 Difference]: With dead ends: 1122010 [2023-12-21 13:11:43,759 INFO L226 Difference]: Without dead ends: 742344 [2023-12-21 13:11:44,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:11:44,033 INFO L413 NwaCegarLoop]: 2323 mSDtfsCounter, 4171 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4171 SdHoareTripleChecker+Valid, 3620 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:11:44,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4171 Valid, 3620 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:11:44,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742344 states. [2023-12-21 13:11:53,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742344 to 742196. [2023-12-21 13:11:54,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742196 states, 742184 states have (on average 1.4618073146281785) internal successors, (1084930), 742195 states have internal predecessors, (1084930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:57,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742196 states to 742196 states and 1084930 transitions. [2023-12-21 13:11:57,200 INFO L78 Accepts]: Start accepts. Automaton has 742196 states and 1084930 transitions. Word has length 307 [2023-12-21 13:11:57,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:11:57,202 INFO L495 AbstractCegarLoop]: Abstraction has 742196 states and 1084930 transitions. [2023-12-21 13:11:57,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.4) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:11:57,202 INFO L276 IsEmpty]: Start isEmpty. Operand 742196 states and 1084930 transitions. [2023-12-21 13:11:58,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2023-12-21 13:11:58,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:11:58,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:11:58,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 13:11:58,374 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-21 13:11:58,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:11:58,375 INFO L85 PathProgramCache]: Analyzing trace with hash -508941786, now seen corresponding path program 1 times [2023-12-21 13:11:58,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:11:58,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985060208] [2023-12-21 13:11:58,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:11:58,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:11:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:11:58,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:11:58,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:11:58,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985060208] [2023-12-21 13:11:58,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985060208] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:11:58,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:11:58,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:11:58,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765061629] [2023-12-21 13:11:58,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:11:58,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:11:58,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:11:58,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:11:58,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:11:58,636 INFO L87 Difference]: Start difference. First operand 742196 states and 1084930 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:12:06,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:12:06,898 INFO L93 Difference]: Finished difference Result 2104738 states and 3068986 transitions. [2023-12-21 13:12:06,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:12:06,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 309 [2023-12-21 13:12:06,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:12:10,782 INFO L225 Difference]: With dead ends: 2104738 [2023-12-21 13:12:10,782 INFO L226 Difference]: Without dead ends: 1369050 [2023-12-21 13:12:11,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:12:11,950 INFO L413 NwaCegarLoop]: 2410 mSDtfsCounter, 1220 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 3717 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:12:11,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 3717 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:12:12,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369050 states. [2023-12-21 13:12:33,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369050 to 1368910. [2023-12-21 13:12:35,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368910 states, 1368898 states have (on average 1.4468499479143078) internal successors, (1980590), 1368909 states have internal predecessors, (1980590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)