/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 02:33:41,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 02:33:41,844 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 02:33:41,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 02:33:41,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 02:33:41,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 02:33:41,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 02:33:41,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 02:33:41,879 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 02:33:41,883 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 02:33:41,883 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 02:33:41,884 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 02:33:41,884 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 02:33:41,885 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 02:33:41,886 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 02:33:41,886 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 02:33:41,886 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 02:33:41,886 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 02:33:41,887 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 02:33:41,887 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 02:33:41,887 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 02:33:41,888 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 02:33:41,888 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 02:33:41,888 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 02:33:41,888 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 02:33:41,888 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 02:33:41,889 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 02:33:41,889 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 02:33:41,890 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 02:33:41,890 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 02:33:41,891 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 02:33:41,891 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 02:33:41,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:33:41,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 02:33:41,892 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 02:33:41,892 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 02:33:41,892 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 02:33:41,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 02:33:41,892 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 02:33:41,893 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 02:33:41,893 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 02:33:41,893 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 02:33:41,893 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 02:33:41,893 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 02:33:42,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 02:33:42,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 02:33:42,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 02:33:42,156 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 02:33:42,160 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 02:33:42,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-20 02:33:43,411 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 02:33:43,820 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 02:33:43,824 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-20 02:33:43,847 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2db0fcc0/1713e193335f420ea55076c36db27737/FLAG4c01ed332 [2023-12-20 02:33:43,859 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2db0fcc0/1713e193335f420ea55076c36db27737 [2023-12-20 02:33:43,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 02:33:43,862 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 02:33:43,863 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 02:33:43,864 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 02:33:43,868 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 02:33:43,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:33:43" (1/1) ... [2023-12-20 02:33:43,870 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32811958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:33:43, skipping insertion in model container [2023-12-20 02:33:43,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:33:43" (1/1) ... [2023-12-20 02:33:43,988 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 02:33:44,505 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31736,31749] [2023-12-20 02:33:44,530 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32626,32639] [2023-12-20 02:33:44,564 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34328,34341] [2023-12-20 02:33:44,590 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35602,35615] [2023-12-20 02:33:44,712 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48839,48852] [2023-12-20 02:33:44,791 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[57613,57626] [2023-12-20 02:33:44,804 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[58506,58519] [2023-12-20 02:33:44,825 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60211,60224] [2023-12-20 02:33:44,838 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61104,61117] [2023-12-20 02:33:44,866 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[63621,63634] [2023-12-20 02:33:44,880 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[64514,64527] [2023-12-20 02:33:44,905 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[66219,66232] [2023-12-20 02:33:45,001 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:33:45,020 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 02:33:45,207 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31736,31749] [2023-12-20 02:33:45,219 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32626,32639] [2023-12-20 02:33:45,256 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34328,34341] [2023-12-20 02:33:45,277 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35602,35615] [2023-12-20 02:33:45,367 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48839,48852] [2023-12-20 02:33:45,443 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[57613,57626] [2023-12-20 02:33:45,455 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[58506,58519] [2023-12-20 02:33:45,472 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60211,60224] [2023-12-20 02:33:45,483 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61104,61117] [2023-12-20 02:33:45,506 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[63621,63634] [2023-12-20 02:33:45,517 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[64514,64527] [2023-12-20 02:33:45,536 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.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[66219,66232] [2023-12-20 02:33:45,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:33:45,603 INFO L206 MainTranslator]: Completed translation [2023-12-20 02:33:45,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:33:45 WrapperNode [2023-12-20 02:33:45,604 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 02:33:45,605 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 02:33:45,605 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 02:33:45,606 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 02:33:45,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:33:45" (1/1) ... [2023-12-20 02:33:45,654 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:33:45" (1/1) ... [2023-12-20 02:33:45,772 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3973 [2023-12-20 02:33:45,772 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 02:33:45,773 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 02:33:45,773 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 02:33:45,773 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 02:33:45,783 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:33:45" (1/1) ... [2023-12-20 02:33:45,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:33:45" (1/1) ... [2023-12-20 02:33:45,799 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:33:45" (1/1) ... [2023-12-20 02:33:45,851 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]. [2023-12-20 02:33:45,851 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:33:45" (1/1) ... [2023-12-20 02:33:45,851 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:33:45" (1/1) ... [2023-12-20 02:33:45,893 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:33:45" (1/1) ... [2023-12-20 02:33:45,928 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:33:45" (1/1) ... [2023-12-20 02:33:45,945 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:33:45" (1/1) ... [2023-12-20 02:33:45,959 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:33:45" (1/1) ... [2023-12-20 02:33:45,982 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 02:33:45,983 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 02:33:45,983 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 02:33:45,983 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 02:33:45,984 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:33:45" (1/1) ... [2023-12-20 02:33:45,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:33:45,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:33:46,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-20 02:33:46,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-20 02:33:46,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 02:33:46,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 02:33:46,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 02:33:46,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 02:33:46,280 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 02:33:46,282 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 02:33:48,307 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 02:33:48,366 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 02:33:48,367 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-20 02:33:48,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:33:48 BoogieIcfgContainer [2023-12-20 02:33:48,368 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 02:33:48,370 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 02:33:48,370 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 02:33:48,373 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 02:33:48,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 02:33:43" (1/3) ... [2023-12-20 02:33:48,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d59b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:33:48, skipping insertion in model container [2023-12-20 02:33:48,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:33:45" (2/3) ... [2023-12-20 02:33:48,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d59b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:33:48, skipping insertion in model container [2023-12-20 02:33:48,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:33:48" (3/3) ... [2023-12-20 02:33:48,375 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-20 02:33:48,391 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 02:33:48,391 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-12-20 02:33:48,451 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 02:33:48,456 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;@1a92a579, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 02:33:48,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-12-20 02:33:48,466 INFO L276 IsEmpty]: Start isEmpty. Operand has 927 states, 914 states have (on average 1.8326039387308535) internal successors, (1675), 926 states have internal predecessors, (1675), 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) [2023-12-20 02:33:48,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2023-12-20 02:33:48,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:33:48,489 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] [2023-12-20 02:33:48,489 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 02:33:48,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:33:48,494 INFO L85 PathProgramCache]: Analyzing trace with hash 839175096, now seen corresponding path program 1 times [2023-12-20 02:33:48,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:33:48,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766752727] [2023-12-20 02:33:48,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:33:48,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:33:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:33:49,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:33:49,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:33:49,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766752727] [2023-12-20 02:33:49,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766752727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:33:49,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:33:49,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:33:49,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025281332] [2023-12-20 02:33:49,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:33:49,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:33:49,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:33:49,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:33:49,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:33:49,357 INFO L87 Difference]: Start difference. First operand has 927 states, 914 states have (on average 1.8326039387308535) internal successors, (1675), 926 states have internal predecessors, (1675), 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 101.0) 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) [2023-12-20 02:33:49,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:33:49,577 INFO L93 Difference]: Finished difference Result 1582 states and 2826 transitions. [2023-12-20 02:33:49,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:33:49,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.0) 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 [2023-12-20 02:33:49,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:33:49,609 INFO L225 Difference]: With dead ends: 1582 [2023-12-20 02:33:49,609 INFO L226 Difference]: Without dead ends: 1330 [2023-12-20 02:33:49,614 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 [2023-12-20 02:33:49,617 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 928 mSDsluCounter, 1167 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 2766 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:33:49,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 2766 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:33:49,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2023-12-20 02:33:49,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1328. [2023-12-20 02:33:49,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 1316 states have (on average 1.5379939209726443) internal successors, (2024), 1327 states have internal predecessors, (2024), 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) [2023-12-20 02:33:49,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 2024 transitions. [2023-12-20 02:33:49,714 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 2024 transitions. Word has length 303 [2023-12-20 02:33:49,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:33:49,715 INFO L495 AbstractCegarLoop]: Abstraction has 1328 states and 2024 transitions. [2023-12-20 02:33:49,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) 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) [2023-12-20 02:33:49,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 2024 transitions. [2023-12-20 02:33:49,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2023-12-20 02:33:49,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:33:49,721 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] [2023-12-20 02:33:49,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 02:33:49,721 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 02:33:49,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:33:49,722 INFO L85 PathProgramCache]: Analyzing trace with hash 958650764, now seen corresponding path program 1 times [2023-12-20 02:33:49,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:33:49,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957992694] [2023-12-20 02:33:49,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:33:49,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:33:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:33:50,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:33:50,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:33:50,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957992694] [2023-12-20 02:33:50,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957992694] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:33:50,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:33:50,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:33:50,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820484862] [2023-12-20 02:33:50,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:33:50,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:33:50,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:33:50,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:33:50,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:33:50,063 INFO L87 Difference]: Start difference. First operand 1328 states and 2024 transitions. Second operand has 3 states, 3 states have (on average 101.0) 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) [2023-12-20 02:33:50,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:33:50,208 INFO L93 Difference]: Finished difference Result 2529 states and 3898 transitions. [2023-12-20 02:33:50,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:33:50,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.0) 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 [2023-12-20 02:33:50,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:33:50,219 INFO L225 Difference]: With dead ends: 2529 [2023-12-20 02:33:50,220 INFO L226 Difference]: Without dead ends: 2138 [2023-12-20 02:33:50,222 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 [2023-12-20 02:33:50,224 INFO L413 NwaCegarLoop]: 1561 mSDtfsCounter, 711 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 2602 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:33:50,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 2602 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:33:50,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2023-12-20 02:33:50,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2136. [2023-12-20 02:33:50,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2136 states, 2124 states have (on average 1.5376647834274952) internal successors, (3266), 2135 states have internal predecessors, (3266), 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) [2023-12-20 02:33:50,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 3266 transitions. [2023-12-20 02:33:50,283 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 3266 transitions. Word has length 303 [2023-12-20 02:33:50,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:33:50,284 INFO L495 AbstractCegarLoop]: Abstraction has 2136 states and 3266 transitions. [2023-12-20 02:33:50,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) 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) [2023-12-20 02:33:50,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 3266 transitions. [2023-12-20 02:33:50,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2023-12-20 02:33:50,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:33:50,290 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] [2023-12-20 02:33:50,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 02:33:50,291 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 02:33:50,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:33:50,292 INFO L85 PathProgramCache]: Analyzing trace with hash -418030580, now seen corresponding path program 1 times [2023-12-20 02:33:50,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:33:50,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729842189] [2023-12-20 02:33:50,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:33:50,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:33:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:33:50,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:33:50,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:33:50,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729842189] [2023-12-20 02:33:50,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729842189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:33:50,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:33:50,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:33:50,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449946515] [2023-12-20 02:33:50,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:33:50,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:33:50,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:33:50,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:33:50,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:33:50,526 INFO L87 Difference]: Start difference. First operand 2136 states and 3266 transitions. Second operand has 3 states, 3 states have (on average 101.0) 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) [2023-12-20 02:33:50,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:33:50,694 INFO L93 Difference]: Finished difference Result 4395 states and 6807 transitions. [2023-12-20 02:33:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:33:50,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.0) 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 [2023-12-20 02:33:50,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:33:50,712 INFO L225 Difference]: With dead ends: 4395 [2023-12-20 02:33:50,713 INFO L226 Difference]: Without dead ends: 3758 [2023-12-20 02:33:50,715 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 [2023-12-20 02:33:50,718 INFO L413 NwaCegarLoop]: 1547 mSDtfsCounter, 730 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 2592 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 [2023-12-20 02:33:50,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 2592 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:33:50,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2023-12-20 02:33:50,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3756. [2023-12-20 02:33:50,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3756 states, 3744 states have (on average 1.5368589743589745) internal successors, (5754), 3755 states have internal predecessors, (5754), 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) [2023-12-20 02:33:50,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3756 states to 3756 states and 5754 transitions. [2023-12-20 02:33:50,808 INFO L78 Accepts]: Start accepts. Automaton has 3756 states and 5754 transitions. Word has length 303 [2023-12-20 02:33:50,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:33:50,808 INFO L495 AbstractCegarLoop]: Abstraction has 3756 states and 5754 transitions. [2023-12-20 02:33:50,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) 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) [2023-12-20 02:33:50,810 INFO L276 IsEmpty]: Start isEmpty. Operand 3756 states and 5754 transitions. [2023-12-20 02:33:50,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2023-12-20 02:33:50,817 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:33:50,817 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] [2023-12-20 02:33:50,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 02:33:50,821 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-20 02:33:50,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:33:50,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1181241136, now seen corresponding path program 1 times [2023-12-20 02:33:50,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:33:50,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049052785] [2023-12-20 02:33:50,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:33:50,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:33:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:33:51,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:33:51,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:33:51,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049052785] [2023-12-20 02:33:51,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049052785] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:33:51,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:33:51,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:33:51,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976467186] [2023-12-20 02:33:51,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:33:51,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:33:51,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:33:51,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:33:51,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:33:51,128 INFO L87 Difference]: Start difference. First operand 3756 states and 5754 transitions. Second operand has 3 states, 3 states have (on average 101.0) 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) [2023-12-20 02:33:51,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:33:51,354 INFO L93 Difference]: Finished difference Result 8135 states and 12631 transitions. [2023-12-20 02:33:51,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:33:51,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.0) 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 [2023-12-20 02:33:51,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:33:51,382 INFO L225 Difference]: With dead ends: 8135 [2023-12-20 02:33:51,383 INFO L226 Difference]: Without dead ends: 7006 [2023-12-20 02:33:51,390 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 [2023-12-20 02:33:51,392 INFO L413 NwaCegarLoop]: 1519 mSDtfsCounter, 775 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 2586 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 [2023-12-20 02:33:51,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 2586 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:33:51,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7006 states. [2023-12-20 02:33:51,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7006 to 7004. [2023-12-20 02:33:51,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7004 states, 6992 states have (on average 1.5357551487414187) internal successors, (10738), 7003 states have internal predecessors, (10738), 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) [2023-12-20 02:33:51,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7004 states to 7004 states and 10738 transitions. [2023-12-20 02:33:51,554 INFO L78 Accepts]: Start accepts. Automaton has 7004 states and 10738 transitions. Word has length 303 [2023-12-20 02:33:51,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:33:51,554 INFO L495 AbstractCegarLoop]: Abstraction has 7004 states and 10738 transitions. [2023-12-20 02:33:51,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) 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) [2023-12-20 02:33:51,555 INFO L276 IsEmpty]: Start isEmpty. Operand 7004 states and 10738 transitions. [2023-12-20 02:33:51,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2023-12-20 02:33:51,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:33:51,567 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] [2023-12-20 02:33:51,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 02:33:51,567 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)] === [2023-12-20 02:33:51,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:33:51,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1181672112, now seen corresponding path program 1 times [2023-12-20 02:33:51,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:33:51,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223822512] [2023-12-20 02:33:51,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:33:51,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:33:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:33:52,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:33:52,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:33:52,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223822512] [2023-12-20 02:33:52,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223822512] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:33:52,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:33:52,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:33:52,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820223284] [2023-12-20 02:33:52,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:33:52,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:33:52,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:33:52,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:33:52,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:33:52,343 INFO L87 Difference]: Start difference. First operand 7004 states and 10738 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) [2023-12-20 02:33:52,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:33:52,544 INFO L93 Difference]: Finished difference Result 20744 states and 31779 transitions. [2023-12-20 02:33:52,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:33:52,544 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 [2023-12-20 02:33:52,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:33:52,597 INFO L225 Difference]: With dead ends: 20744 [2023-12-20 02:33:52,597 INFO L226 Difference]: Without dead ends: 13750 [2023-12-20 02:33:52,612 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 [2023-12-20 02:33:52,612 INFO L413 NwaCegarLoop]: 2413 mSDtfsCounter, 2971 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2971 SdHoareTripleChecker+Valid, 3746 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 [2023-12-20 02:33:52,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2971 Valid, 3746 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:33:52,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13750 states. [2023-12-20 02:33:52,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13750 to 13562. [2023-12-20 02:33:52,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13562 states, 13550 states have (on average 1.5276752767527675) internal successors, (20700), 13561 states have internal predecessors, (20700), 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) [2023-12-20 02:33:52,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13562 states to 13562 states and 20700 transitions. [2023-12-20 02:33:52,928 INFO L78 Accepts]: Start accepts. Automaton has 13562 states and 20700 transitions. Word has length 303 [2023-12-20 02:33:52,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:33:52,928 INFO L495 AbstractCegarLoop]: Abstraction has 13562 states and 20700 transitions. [2023-12-20 02:33:52,929 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) [2023-12-20 02:33:52,929 INFO L276 IsEmpty]: Start isEmpty. Operand 13562 states and 20700 transitions. [2023-12-20 02:33:52,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2023-12-20 02:33:52,950 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:33:52,950 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] [2023-12-20 02:33:52,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 02:33:52,950 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)] === [2023-12-20 02:33:52,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:33:52,951 INFO L85 PathProgramCache]: Analyzing trace with hash 2117107700, now seen corresponding path program 1 times [2023-12-20 02:33:52,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:33:52,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531366362] [2023-12-20 02:33:52,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:33:52,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:33:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:33:53,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:33:53,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:33:53,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531366362] [2023-12-20 02:33:53,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531366362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:33:53,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:33:53,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:33:53,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19406742] [2023-12-20 02:33:53,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:33:53,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:33:53,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:33:53,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:33:53,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:33:53,196 INFO L87 Difference]: Start difference. First operand 13562 states and 20700 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) [2023-12-20 02:33:53,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:33:53,425 INFO L93 Difference]: Finished difference Result 40055 states and 61062 transitions. [2023-12-20 02:33:53,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:33:53,426 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 [2023-12-20 02:33:53,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:33:53,490 INFO L225 Difference]: With dead ends: 40055 [2023-12-20 02:33:53,490 INFO L226 Difference]: Without dead ends: 26617 [2023-12-20 02:33:53,517 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 [2023-12-20 02:33:53,518 INFO L413 NwaCegarLoop]: 2676 mSDtfsCounter, 1265 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 4019 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:33:53,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 4019 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:33:53,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26617 states. [2023-12-20 02:33:53,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26617 to 26429. [2023-12-20 02:33:54,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26429 states, 26417 states have (on average 1.5189082787598895) internal successors, (40125), 26428 states have internal predecessors, (40125), 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) [2023-12-20 02:33:54,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26429 states to 26429 states and 40125 transitions. [2023-12-20 02:33:54,336 INFO L78 Accepts]: Start accepts. Automaton has 26429 states and 40125 transitions. Word has length 305 [2023-12-20 02:33:54,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:33:54,336 INFO L495 AbstractCegarLoop]: Abstraction has 26429 states and 40125 transitions. [2023-12-20 02:33:54,337 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) [2023-12-20 02:33:54,337 INFO L276 IsEmpty]: Start isEmpty. Operand 26429 states and 40125 transitions. [2023-12-20 02:33:54,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2023-12-20 02:33:54,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:33:54,371 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] [2023-12-20 02:33:54,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 02:33:54,372 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)] === [2023-12-20 02:33:54,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:33:54,373 INFO L85 PathProgramCache]: Analyzing trace with hash 663778681, now seen corresponding path program 1 times [2023-12-20 02:33:54,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:33:54,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812730769] [2023-12-20 02:33:54,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:33:54,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:33:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:33:54,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:33:54,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:33:54,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812730769] [2023-12-20 02:33:54,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812730769] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:33:54,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:33:54,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:33:54,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086945066] [2023-12-20 02:33:54,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:33:54,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:33:54,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:33:54,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:33:54,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:33:54,493 INFO L87 Difference]: Start difference. First operand 26429 states and 40125 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) [2023-12-20 02:33:54,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:33:54,866 INFO L93 Difference]: Finished difference Result 79222 states and 120261 transitions. [2023-12-20 02:33:54,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:33:54,867 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 [2023-12-20 02:33:54,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:33:54,980 INFO L225 Difference]: With dead ends: 79222 [2023-12-20 02:33:54,980 INFO L226 Difference]: Without dead ends: 52830 [2023-12-20 02:33:55,023 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 [2023-12-20 02:33:55,025 INFO L413 NwaCegarLoop]: 2782 mSDtfsCounter, 1389 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 4171 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 [2023-12-20 02:33:55,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 4171 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:33:55,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52830 states. [2023-12-20 02:33:55,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52830 to 26448. [2023-12-20 02:33:55,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26448 states, 26436 states have (on average 1.5188757754577091) internal successors, (40153), 26447 states have internal predecessors, (40153), 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) [2023-12-20 02:33:55,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26448 states to 26448 states and 40153 transitions. [2023-12-20 02:33:55,816 INFO L78 Accepts]: Start accepts. Automaton has 26448 states and 40153 transitions. Word has length 305 [2023-12-20 02:33:55,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:33:55,816 INFO L495 AbstractCegarLoop]: Abstraction has 26448 states and 40153 transitions. [2023-12-20 02:33:55,817 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) [2023-12-20 02:33:55,817 INFO L276 IsEmpty]: Start isEmpty. Operand 26448 states and 40153 transitions. [2023-12-20 02:33:55,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2023-12-20 02:33:55,857 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:33:55,857 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] [2023-12-20 02:33:55,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 02:33:55,858 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)] === [2023-12-20 02:33:55,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:33:55,858 INFO L85 PathProgramCache]: Analyzing trace with hash -968308360, now seen corresponding path program 1 times [2023-12-20 02:33:55,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:33:55,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669750227] [2023-12-20 02:33:55,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:33:55,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:33:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:33:55,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:33:55,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:33:55,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669750227] [2023-12-20 02:33:55,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669750227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:33:55,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:33:55,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:33:55,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554460982] [2023-12-20 02:33:55,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:33:55,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:33:55,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:33:55,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:33:55,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:33:55,996 INFO L87 Difference]: Start difference. First operand 26448 states and 40153 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) [2023-12-20 02:33:56,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:33:56,367 INFO L93 Difference]: Finished difference Result 79241 states and 120282 transitions. [2023-12-20 02:33:56,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:33:56,368 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 [2023-12-20 02:33:56,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:33:56,518 INFO L225 Difference]: With dead ends: 79241 [2023-12-20 02:33:56,519 INFO L226 Difference]: Without dead ends: 52848 [2023-12-20 02:33:56,563 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 [2023-12-20 02:33:56,564 INFO L413 NwaCegarLoop]: 2782 mSDtfsCounter, 1384 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 4171 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 [2023-12-20 02:33:56,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 4171 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:33:56,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52848 states. [2023-12-20 02:33:57,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52848 to 26466. [2023-12-20 02:33:57,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26466 states, 26454 states have (on average 1.5186361230815755) internal successors, (40174), 26465 states have internal predecessors, (40174), 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) [2023-12-20 02:33:57,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26466 states to 26466 states and 40174 transitions. [2023-12-20 02:33:57,299 INFO L78 Accepts]: Start accepts. Automaton has 26466 states and 40174 transitions. Word has length 306 [2023-12-20 02:33:57,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:33:57,299 INFO L495 AbstractCegarLoop]: Abstraction has 26466 states and 40174 transitions. [2023-12-20 02:33:57,300 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) [2023-12-20 02:33:57,300 INFO L276 IsEmpty]: Start isEmpty. Operand 26466 states and 40174 transitions. [2023-12-20 02:33:57,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2023-12-20 02:33:57,335 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:33:57,336 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] [2023-12-20 02:33:57,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 02:33:57,336 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)] === [2023-12-20 02:33:57,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:33:57,337 INFO L85 PathProgramCache]: Analyzing trace with hash 441325228, now seen corresponding path program 1 times [2023-12-20 02:33:57,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:33:57,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818694630] [2023-12-20 02:33:57,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:33:57,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:33:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:33:58,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:33:58,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:33:58,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818694630] [2023-12-20 02:33:58,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818694630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:33:58,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:33:58,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:33:58,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150531732] [2023-12-20 02:33:58,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:33:58,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:33:58,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:33:58,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:33:58,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:33:58,065 INFO L87 Difference]: Start difference. First operand 26466 states and 40174 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) [2023-12-20 02:33:58,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:33:58,478 INFO L93 Difference]: Finished difference Result 78145 states and 118489 transitions. [2023-12-20 02:33:58,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:33:58,478 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 [2023-12-20 02:33:58,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:33:58,595 INFO L225 Difference]: With dead ends: 78145 [2023-12-20 02:33:58,595 INFO L226 Difference]: Without dead ends: 51721 [2023-12-20 02:33:58,634 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 [2023-12-20 02:33:58,636 INFO L413 NwaCegarLoop]: 2398 mSDtfsCounter, 4316 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4316 SdHoareTripleChecker+Valid, 3723 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:33:58,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4316 Valid, 3723 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:33:58,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51721 states. [2023-12-20 02:33:59,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51721 to 51557. [2023-12-20 02:33:59,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51557 states, 51545 states have (on average 1.5083131244543602) internal successors, (77746), 51556 states have internal predecessors, (77746), 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) [2023-12-20 02:33:59,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51557 states to 51557 states and 77746 transitions. [2023-12-20 02:33:59,589 INFO L78 Accepts]: Start accepts. Automaton has 51557 states and 77746 transitions. Word has length 307 [2023-12-20 02:33:59,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:33:59,589 INFO L495 AbstractCegarLoop]: Abstraction has 51557 states and 77746 transitions. [2023-12-20 02:33:59,590 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) [2023-12-20 02:33:59,590 INFO L276 IsEmpty]: Start isEmpty. Operand 51557 states and 77746 transitions. [2023-12-20 02:33:59,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2023-12-20 02:33:59,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:33:59,643 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] [2023-12-20 02:33:59,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 02:33:59,644 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)] === [2023-12-20 02:33:59,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:33:59,645 INFO L85 PathProgramCache]: Analyzing trace with hash 573583170, now seen corresponding path program 1 times [2023-12-20 02:33:59,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:33:59,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414426031] [2023-12-20 02:33:59,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:33:59,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:33:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:34:00,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:34:00,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:34:00,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414426031] [2023-12-20 02:34:00,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414426031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:34:00,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:34:00,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:34:00,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977139531] [2023-12-20 02:34:00,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:34:00,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:34:00,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:34:00,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:34:00,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:34:00,491 INFO L87 Difference]: Start difference. First operand 51557 states and 77746 transitions. Second operand has 4 states, 4 states have (on average 77.25) 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) [2023-12-20 02:34:01,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:34:01,215 INFO L93 Difference]: Finished difference Result 152449 states and 229672 transitions. [2023-12-20 02:34:01,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:34:01,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.25) 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 [2023-12-20 02:34:01,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:34:01,420 INFO L225 Difference]: With dead ends: 152449 [2023-12-20 02:34:01,421 INFO L226 Difference]: Without dead ends: 101017 [2023-12-20 02:34:01,471 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 [2023-12-20 02:34:01,472 INFO L413 NwaCegarLoop]: 2395 mSDtfsCounter, 2919 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2919 SdHoareTripleChecker+Valid, 3732 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 [2023-12-20 02:34:01,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2919 Valid, 3732 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:34:01,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101017 states. [2023-12-20 02:34:02,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101017 to 100809. [2023-12-20 02:34:02,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100809 states, 100797 states have (on average 1.4983382441937756) internal successors, (151028), 100808 states have internal predecessors, (151028), 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) [2023-12-20 02:34:03,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100809 states to 100809 states and 151028 transitions. [2023-12-20 02:34:03,347 INFO L78 Accepts]: Start accepts. Automaton has 100809 states and 151028 transitions. Word has length 309 [2023-12-20 02:34:03,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:34:03,347 INFO L495 AbstractCegarLoop]: Abstraction has 100809 states and 151028 transitions. [2023-12-20 02:34:03,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) 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) [2023-12-20 02:34:03,348 INFO L276 IsEmpty]: Start isEmpty. Operand 100809 states and 151028 transitions. [2023-12-20 02:34:03,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-12-20 02:34:03,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:34:03,479 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, 1, 1] [2023-12-20 02:34:03,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 02:34:03,479 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)] === [2023-12-20 02:34:03,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:34:03,480 INFO L85 PathProgramCache]: Analyzing trace with hash -239846883, now seen corresponding path program 1 times [2023-12-20 02:34:03,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:34:03,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271398481] [2023-12-20 02:34:03,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:34:03,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:34:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:34:03,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:34:03,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:34:03,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271398481] [2023-12-20 02:34:03,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271398481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:34:03,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:34:03,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:34:03,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175718184] [2023-12-20 02:34:03,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:34:03,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:34:03,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:34:03,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:34:03,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:34:03,646 INFO L87 Difference]: Start difference. First operand 100809 states and 151028 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2023-12-20 02:34:04,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:34:04,908 INFO L93 Difference]: Finished difference Result 297851 states and 445698 transitions. [2023-12-20 02:34:04,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:34:04,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 311 [2023-12-20 02:34:04,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:34:05,215 INFO L225 Difference]: With dead ends: 297851 [2023-12-20 02:34:05,215 INFO L226 Difference]: Without dead ends: 197555 [2023-12-20 02:34:05,326 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 [2023-12-20 02:34:05,327 INFO L413 NwaCegarLoop]: 2678 mSDtfsCounter, 1241 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 4025 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:34:05,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 4025 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:34:05,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197555 states. [2023-12-20 02:34:08,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197555 to 197347. [2023-12-20 02:34:08,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197347 states, 197335 states have (on average 1.4881090531329972) internal successors, (293656), 197346 states have internal predecessors, (293656), 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) [2023-12-20 02:34:08,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197347 states to 197347 states and 293656 transitions. [2023-12-20 02:34:08,643 INFO L78 Accepts]: Start accepts. Automaton has 197347 states and 293656 transitions. Word has length 311 [2023-12-20 02:34:08,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:34:08,644 INFO L495 AbstractCegarLoop]: Abstraction has 197347 states and 293656 transitions. [2023-12-20 02:34:08,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2023-12-20 02:34:08,644 INFO L276 IsEmpty]: Start isEmpty. Operand 197347 states and 293656 transitions. [2023-12-20 02:34:09,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-12-20 02:34:09,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:34:09,140 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, 1, 1] [2023-12-20 02:34:09,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 02:34:09,140 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)] === [2023-12-20 02:34:09,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:34:09,141 INFO L85 PathProgramCache]: Analyzing trace with hash -913836190, now seen corresponding path program 1 times [2023-12-20 02:34:09,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:34:09,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283181716] [2023-12-20 02:34:09,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:34:09,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:34:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:34:09,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:34:09,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:34:09,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283181716] [2023-12-20 02:34:09,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283181716] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:34:09,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:34:09,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:34:09,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349665267] [2023-12-20 02:34:09,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:34:09,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:34:09,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:34:09,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:34:09,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:34:09,267 INFO L87 Difference]: Start difference. First operand 197347 states and 293656 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2023-12-20 02:34:11,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:34:11,343 INFO L93 Difference]: Finished difference Result 591553 states and 880172 transitions. [2023-12-20 02:34:11,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:34:11,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 311 [2023-12-20 02:34:11,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:34:12,365 INFO L225 Difference]: With dead ends: 591553 [2023-12-20 02:34:12,365 INFO L226 Difference]: Without dead ends: 394477 [2023-12-20 02:34:12,518 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 [2023-12-20 02:34:12,519 INFO L413 NwaCegarLoop]: 2749 mSDtfsCounter, 1356 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 4138 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 [2023-12-20 02:34:12,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1356 Valid, 4138 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:34:12,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394477 states. [2023-12-20 02:34:16,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394477 to 197461. [2023-12-20 02:34:16,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197461 states, 197449 states have (on average 1.4881007247441111) internal successors, (293824), 197460 states have internal predecessors, (293824), 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) [2023-12-20 02:34:17,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197461 states to 197461 states and 293824 transitions. [2023-12-20 02:34:17,334 INFO L78 Accepts]: Start accepts. Automaton has 197461 states and 293824 transitions. Word has length 311 [2023-12-20 02:34:17,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:34:17,335 INFO L495 AbstractCegarLoop]: Abstraction has 197461 states and 293824 transitions. [2023-12-20 02:34:17,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2023-12-20 02:34:17,335 INFO L276 IsEmpty]: Start isEmpty. Operand 197461 states and 293824 transitions. [2023-12-20 02:34:17,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2023-12-20 02:34:17,502 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:34:17,502 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, 1, 1, 1] [2023-12-20 02:34:17,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 02:34:17,503 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)] === [2023-12-20 02:34:17,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:34:17,503 INFO L85 PathProgramCache]: Analyzing trace with hash 414865769, now seen corresponding path program 1 times [2023-12-20 02:34:17,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:34:17,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485176172] [2023-12-20 02:34:17,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:34:17,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:34:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:34:17,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:34:17,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:34:17,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485176172] [2023-12-20 02:34:17,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485176172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:34:17,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:34:17,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:34:17,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321393383] [2023-12-20 02:34:17,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:34:17,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:34:17,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:34:17,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:34:17,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:34:17,616 INFO L87 Difference]: Start difference. First operand 197461 states and 293824 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2023-12-20 02:34:20,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:34:20,022 INFO L93 Difference]: Finished difference Result 591615 states and 880210 transitions. [2023-12-20 02:34:20,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:34:20,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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 312 [2023-12-20 02:34:20,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:34:20,657 INFO L225 Difference]: With dead ends: 591615 [2023-12-20 02:34:20,658 INFO L226 Difference]: Without dead ends: 394573 [2023-12-20 02:34:20,798 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 [2023-12-20 02:34:20,799 INFO L413 NwaCegarLoop]: 2749 mSDtfsCounter, 1351 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 4138 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 [2023-12-20 02:34:20,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1351 Valid, 4138 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:34:21,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394573 states. [2023-12-20 02:34:24,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394573 to 197557. [2023-12-20 02:34:24,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197557 states, 197545 states have (on average 1.4879343946948798) internal successors, (293934), 197556 states have internal predecessors, (293934), 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) [2023-12-20 02:34:25,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197557 states to 197557 states and 293934 transitions. [2023-12-20 02:34:25,744 INFO L78 Accepts]: Start accepts. Automaton has 197557 states and 293934 transitions. Word has length 312 [2023-12-20 02:34:25,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:34:25,745 INFO L495 AbstractCegarLoop]: Abstraction has 197557 states and 293934 transitions. [2023-12-20 02:34:25,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2023-12-20 02:34:25,745 INFO L276 IsEmpty]: Start isEmpty. Operand 197557 states and 293934 transitions. [2023-12-20 02:34:25,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2023-12-20 02:34:25,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:34:25,889 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, 1, 1, 1, 1] [2023-12-20 02:34:25,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 02:34:25,889 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)] === [2023-12-20 02:34:25,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:34:25,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1757978312, now seen corresponding path program 1 times [2023-12-20 02:34:25,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:34:25,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734989801] [2023-12-20 02:34:25,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:34:25,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:34:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:34:26,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:34:26,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:34:26,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734989801] [2023-12-20 02:34:26,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734989801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:34:26,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:34:26,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:34:26,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685129617] [2023-12-20 02:34:26,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:34:26,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:34:26,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:34:26,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:34:26,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:34:26,039 INFO L87 Difference]: Start difference. First operand 197557 states and 293934 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2023-12-20 02:34:28,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:34:28,296 INFO L93 Difference]: Finished difference Result 562165 states and 835132 transitions. [2023-12-20 02:34:28,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:34:28,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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 313 [2023-12-20 02:34:28,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:34:29,065 INFO L225 Difference]: With dead ends: 562165 [2023-12-20 02:34:29,066 INFO L226 Difference]: Without dead ends: 365509 [2023-12-20 02:34:29,267 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 [2023-12-20 02:34:29,271 INFO L413 NwaCegarLoop]: 2709 mSDtfsCounter, 1234 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 4056 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 [2023-12-20 02:34:29,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 4056 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:34:29,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365509 states. [2023-12-20 02:34:34,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365509 to 365301. [2023-12-20 02:34:34,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365301 states, 365289 states have (on average 1.4759382297304326) internal successors, (539144), 365300 states have internal predecessors, (539144), 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) [2023-12-20 02:34:35,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365301 states to 365301 states and 539144 transitions. [2023-12-20 02:34:35,679 INFO L78 Accepts]: Start accepts. Automaton has 365301 states and 539144 transitions. Word has length 313 [2023-12-20 02:34:35,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:34:35,680 INFO L495 AbstractCegarLoop]: Abstraction has 365301 states and 539144 transitions. [2023-12-20 02:34:35,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2023-12-20 02:34:35,680 INFO L276 IsEmpty]: Start isEmpty. Operand 365301 states and 539144 transitions. [2023-12-20 02:34:36,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2023-12-20 02:34:36,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:34:36,455 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, 1, 1, 1, 1] [2023-12-20 02:34:36,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 02:34:36,456 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)] === [2023-12-20 02:34:36,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:34:36,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1401131989, now seen corresponding path program 1 times [2023-12-20 02:34:36,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:34:36,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228671018] [2023-12-20 02:34:36,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:34:36,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:34:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:34:36,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:34:36,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:34:36,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228671018] [2023-12-20 02:34:36,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228671018] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:34:36,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:34:36,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:34:36,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084581778] [2023-12-20 02:34:36,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:34:36,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:34:36,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:34:36,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:34:36,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:34:36,960 INFO L87 Difference]: Start difference. First operand 365301 states and 539144 transitions. Second operand has 5 states, 5 states have (on average 62.6) internal successors, (313), 4 states have internal predecessors, (313), 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) [2023-12-20 02:34:41,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:34:41,012 INFO L93 Difference]: Finished difference Result 1079186 states and 1590538 transitions. [2023-12-20 02:34:41,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:34:41,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 62.6) internal successors, (313), 4 states have internal predecessors, (313), 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 313 [2023-12-20 02:34:41,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:34:42,508 INFO L225 Difference]: With dead ends: 1079186 [2023-12-20 02:34:42,508 INFO L226 Difference]: Without dead ends: 714265 [2023-12-20 02:34:42,745 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 [2023-12-20 02:34:42,745 INFO L413 NwaCegarLoop]: 2293 mSDtfsCounter, 4342 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4342 SdHoareTripleChecker+Valid, 3618 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:34:42,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4342 Valid, 3618 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:34:43,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714265 states. [2023-12-20 02:34:54,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714265 to 714109. [2023-12-20 02:34:55,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714109 states, 714097 states have (on average 1.4642030424438137) internal successors, (1045583), 714108 states have internal predecessors, (1045583), 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) [2023-12-20 02:34:59,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714109 states to 714109 states and 1045583 transitions. [2023-12-20 02:34:59,534 INFO L78 Accepts]: Start accepts. Automaton has 714109 states and 1045583 transitions. Word has length 313 [2023-12-20 02:34:59,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:34:59,534 INFO L495 AbstractCegarLoop]: Abstraction has 714109 states and 1045583 transitions. [2023-12-20 02:34:59,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.6) internal successors, (313), 4 states have internal predecessors, (313), 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) [2023-12-20 02:34:59,534 INFO L276 IsEmpty]: Start isEmpty. Operand 714109 states and 1045583 transitions. [2023-12-20 02:35:00,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-12-20 02:35:00,879 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:35:00,880 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, 1, 1, 1, 1, 1, 1] [2023-12-20 02:35:00,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 02:35:00,881 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)] === [2023-12-20 02:35:00,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:35:00,881 INFO L85 PathProgramCache]: Analyzing trace with hash 549263523, now seen corresponding path program 1 times [2023-12-20 02:35:00,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:35:00,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582167243] [2023-12-20 02:35:00,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:35:00,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:35:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:35:01,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:35:01,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:35:01,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582167243] [2023-12-20 02:35:01,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582167243] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:35:01,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:35:01,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:35:01,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019699601] [2023-12-20 02:35:01,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:35:01,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:35:01,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:35:01,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:35:01,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:35:01,679 INFO L87 Difference]: Start difference. First operand 714109 states and 1045583 transitions. Second operand has 5 states, 5 states have (on average 63.0) internal successors, (315), 4 states have internal predecessors, (315), 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) [2023-12-20 02:35:11,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:35:11,403 INFO L93 Difference]: Finished difference Result 2110480 states and 3085548 transitions. [2023-12-20 02:35:11,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:35:11,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 63.0) internal successors, (315), 4 states have internal predecessors, (315), 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 315 [2023-12-20 02:35:11,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:35:15,930 INFO L225 Difference]: With dead ends: 2110480 [2023-12-20 02:35:15,930 INFO L226 Difference]: Without dead ends: 1396977 [2023-12-20 02:35:17,434 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 [2023-12-20 02:35:17,453 INFO L413 NwaCegarLoop]: 2349 mSDtfsCounter, 3865 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3865 SdHoareTripleChecker+Valid, 3658 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:35:17,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3865 Valid, 3658 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:35:18,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396977 states. [2023-12-20 02:35:41,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396977 to 1396893. [2023-12-20 02:35:44,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396893 states, 1396881 states have (on average 1.4516590890705794) internal successors, (2027795), 1396892 states have internal predecessors, (2027795), 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)