/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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 03:21:07,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 03:21:07,579 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 03:21:07,582 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 03:21:07,583 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 03:21:07,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 03:21:07,605 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 03:21:07,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 03:21:07,606 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 03:21:07,609 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 03:21:07,609 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 03:21:07,609 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 03:21:07,610 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 03:21:07,610 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 03:21:07,611 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 03:21:07,611 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 03:21:07,611 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 03:21:07,611 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 03:21:07,611 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 03:21:07,612 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 03:21:07,612 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 03:21:07,613 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 03:21:07,613 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 03:21:07,613 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 03:21:07,613 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 03:21:07,613 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 03:21:07,613 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 03:21:07,614 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 03:21:07,614 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 03:21:07,614 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 03:21:07,615 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 03:21:07,615 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 03:21:07,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:21:07,615 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 03:21:07,615 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 03:21:07,615 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 03:21:07,616 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 03:21:07,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 03:21:07,616 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 03:21:07,616 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 03:21:07,616 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 03:21:07,616 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 03:21:07,616 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 03:21:07,616 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 03:21:07,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 03:21:07,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 03:21:07,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 03:21:07,795 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 03:21:07,795 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 03:21:07,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-20 03:21:08,822 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 03:21:09,042 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 03:21:09,042 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-20 03:21:09,055 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c0911b30/4f96b32b5aa3467fbaf408a121be93c2/FLAG6a601b2fd [2023-12-20 03:21:09,077 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c0911b30/4f96b32b5aa3467fbaf408a121be93c2 [2023-12-20 03:21:09,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 03:21:09,080 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 03:21:09,081 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 03:21:09,081 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 03:21:09,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 03:21:09,084 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:21:09" (1/1) ... [2023-12-20 03:21:09,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a6d2658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:21:09, skipping insertion in model container [2023-12-20 03:21:09,085 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:21:09" (1/1) ... [2023-12-20 03:21:09,141 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 03:21:09,334 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[9419,9432] [2023-12-20 03:21:09,360 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12891,12904] [2023-12-20 03:21:09,367 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14047,14060] [2023-12-20 03:21:09,370 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14703,14716] [2023-12-20 03:21:09,376 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16224,16237] [2023-12-20 03:21:09,380 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16880,16893] [2023-12-20 03:21:09,384 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[17864,17877] [2023-12-20 03:21:09,403 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20202,20215] [2023-12-20 03:21:09,415 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20861,20874] [2023-12-20 03:21:09,418 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[21885,21898] [2023-12-20 03:21:09,424 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23760,23773] [2023-12-20 03:21:09,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:21:09,529 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 03:21:09,591 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[9419,9432] [2023-12-20 03:21:09,598 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12891,12904] [2023-12-20 03:21:09,650 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14047,14060] [2023-12-20 03:21:09,653 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14703,14716] [2023-12-20 03:21:09,656 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16224,16237] [2023-12-20 03:21:09,659 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16880,16893] [2023-12-20 03:21:09,690 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[17864,17877] [2023-12-20 03:21:09,704 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20202,20215] [2023-12-20 03:21:09,710 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20861,20874] [2023-12-20 03:21:09,713 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[21885,21898] [2023-12-20 03:21:09,730 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_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23760,23773] [2023-12-20 03:21:09,776 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:21:09,789 INFO L206 MainTranslator]: Completed translation [2023-12-20 03:21:09,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:21:09 WrapperNode [2023-12-20 03:21:09,789 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 03:21:09,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 03:21:09,796 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 03:21:09,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 03:21:09,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:21:09" (1/1) ... [2023-12-20 03:21:09,835 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:21:09" (1/1) ... [2023-12-20 03:21:09,892 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2016 [2023-12-20 03:21:09,892 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 03:21:09,893 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 03:21:09,893 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 03:21:09,893 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 03:21:09,901 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:21:09" (1/1) ... [2023-12-20 03:21:09,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:21:09" (1/1) ... [2023-12-20 03:21:09,905 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:21:09" (1/1) ... [2023-12-20 03:21:09,935 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 03:21:09,935 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:21:09" (1/1) ... [2023-12-20 03:21:09,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:21:09" (1/1) ... [2023-12-20 03:21:09,951 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:21:09" (1/1) ... [2023-12-20 03:21:09,958 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:21:09" (1/1) ... [2023-12-20 03:21:09,963 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:21:09" (1/1) ... [2023-12-20 03:21:09,967 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:21:09" (1/1) ... [2023-12-20 03:21:09,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 03:21:09,985 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 03:21:09,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 03:21:09,986 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 03:21:09,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:21:09" (1/1) ... [2023-12-20 03:21:10,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:21:10,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:21:10,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-20 03:21:10,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-20 03:21:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 03:21:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 03:21:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 03:21:10,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 03:21:10,218 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 03:21:10,219 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 03:21:11,052 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 03:21:11,081 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 03:21:11,082 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-20 03:21:11,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:21:11 BoogieIcfgContainer [2023-12-20 03:21:11,082 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 03:21:11,083 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 03:21:11,083 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 03:21:11,086 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 03:21:11,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 03:21:09" (1/3) ... [2023-12-20 03:21:11,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4997fc81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:21:11, skipping insertion in model container [2023-12-20 03:21:11,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:21:09" (2/3) ... [2023-12-20 03:21:11,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4997fc81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:21:11, skipping insertion in model container [2023-12-20 03:21:11,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:21:11" (3/3) ... [2023-12-20 03:21:11,088 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-20 03:21:11,100 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 03:21:11,100 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-12-20 03:21:11,137 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 03:21:11,142 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;@35e71fd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 03:21:11,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-12-20 03:21:11,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 356 states, 344 states have (on average 1.8430232558139534) internal successors, (634), 355 states have internal predecessors, (634), 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 03:21:11,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-20 03:21:11,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:11,157 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] [2023-12-20 03:21:11,157 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:11,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:11,161 INFO L85 PathProgramCache]: Analyzing trace with hash -972469851, now seen corresponding path program 1 times [2023-12-20 03:21:11,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:11,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538917902] [2023-12-20 03:21:11,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:11,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:11,464 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 03:21:11,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:11,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538917902] [2023-12-20 03:21:11,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538917902] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:11,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:11,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:21:11,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71625827] [2023-12-20 03:21:11,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:11,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:21:11,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:11,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:21:11,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:21:11,492 INFO L87 Difference]: Start difference. First operand has 356 states, 344 states have (on average 1.8430232558139534) internal successors, (634), 355 states have internal predecessors, (634), 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 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 03:21:11,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:11,749 INFO L93 Difference]: Finished difference Result 565 states and 969 transitions. [2023-12-20 03:21:11,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:21:11,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2023-12-20 03:21:11,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:11,758 INFO L225 Difference]: With dead ends: 565 [2023-12-20 03:21:11,758 INFO L226 Difference]: Without dead ends: 302 [2023-12-20 03:21:11,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:21:11,763 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 1462 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:11,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1462 Valid, 378 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:21:11,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-12-20 03:21:11,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2023-12-20 03:21:11,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 291 states have (on average 1.288659793814433) internal successors, (375), 301 states have internal predecessors, (375), 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 03:21:11,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 375 transitions. [2023-12-20 03:21:11,794 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 375 transitions. Word has length 58 [2023-12-20 03:21:11,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:11,794 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 375 transitions. [2023-12-20 03:21:11,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 03:21:11,794 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 375 transitions. [2023-12-20 03:21:11,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-20 03:21:11,796 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:11,796 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] [2023-12-20 03:21:11,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 03:21:11,796 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:11,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:11,797 INFO L85 PathProgramCache]: Analyzing trace with hash 2110592992, now seen corresponding path program 1 times [2023-12-20 03:21:11,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:11,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215029676] [2023-12-20 03:21:11,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:11,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:11,901 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 03:21:11,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:11,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215029676] [2023-12-20 03:21:11,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215029676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:11,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:11,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:21:11,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279174403] [2023-12-20 03:21:11,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:11,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:21:11,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:11,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:21:11,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:21:11,904 INFO L87 Difference]: Start difference. First operand 302 states and 375 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 03:21:12,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:12,073 INFO L93 Difference]: Finished difference Result 505 states and 644 transitions. [2023-12-20 03:21:12,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:21:12,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 59 [2023-12-20 03:21:12,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:12,075 INFO L225 Difference]: With dead ends: 505 [2023-12-20 03:21:12,075 INFO L226 Difference]: Without dead ends: 267 [2023-12-20 03:21:12,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:21:12,077 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 970 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:12,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 203 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:21:12,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-12-20 03:21:12,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2023-12-20 03:21:12,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 256 states have (on average 1.30859375) internal successors, (335), 266 states have internal predecessors, (335), 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 03:21:12,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 335 transitions. [2023-12-20 03:21:12,084 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 335 transitions. Word has length 59 [2023-12-20 03:21:12,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:12,085 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 335 transitions. [2023-12-20 03:21:12,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 03:21:12,085 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 335 transitions. [2023-12-20 03:21:12,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-20 03:21:12,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:12,086 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] [2023-12-20 03:21:12,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 03:21:12,086 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:12,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:12,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2026571766, now seen corresponding path program 1 times [2023-12-20 03:21:12,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:12,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697256079] [2023-12-20 03:21:12,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:12,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:12,191 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 03:21:12,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:12,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697256079] [2023-12-20 03:21:12,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697256079] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:12,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:12,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:21:12,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926989040] [2023-12-20 03:21:12,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:12,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:21:12,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:12,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:21:12,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:21:12,193 INFO L87 Difference]: Start difference. First operand 267 states and 335 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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 03:21:12,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:12,340 INFO L93 Difference]: Finished difference Result 470 states and 603 transitions. [2023-12-20 03:21:12,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:21:12,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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 60 [2023-12-20 03:21:12,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:12,342 INFO L225 Difference]: With dead ends: 470 [2023-12-20 03:21:12,342 INFO L226 Difference]: Without dead ends: 257 [2023-12-20 03:21:12,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:21:12,343 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 892 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:12,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 196 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:21:12,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2023-12-20 03:21:12,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2023-12-20 03:21:12,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 246 states have (on average 1.3089430894308942) internal successors, (322), 256 states have internal predecessors, (322), 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 03:21:12,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 322 transitions. [2023-12-20 03:21:12,349 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 322 transitions. Word has length 60 [2023-12-20 03:21:12,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:12,349 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 322 transitions. [2023-12-20 03:21:12,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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 03:21:12,349 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 322 transitions. [2023-12-20 03:21:12,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-20 03:21:12,350 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:12,350 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] [2023-12-20 03:21:12,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 03:21:12,350 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:12,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:12,351 INFO L85 PathProgramCache]: Analyzing trace with hash 2081966607, now seen corresponding path program 1 times [2023-12-20 03:21:12,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:12,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560496806] [2023-12-20 03:21:12,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:12,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:12,423 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 03:21:12,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:12,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560496806] [2023-12-20 03:21:12,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560496806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:12,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:12,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:21:12,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231280928] [2023-12-20 03:21:12,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:12,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:21:12,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:12,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:21:12,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:21:12,425 INFO L87 Difference]: Start difference. First operand 257 states and 322 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 03:21:12,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:12,543 INFO L93 Difference]: Finished difference Result 460 states and 589 transitions. [2023-12-20 03:21:12,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:21:12,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2023-12-20 03:21:12,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:12,544 INFO L225 Difference]: With dead ends: 460 [2023-12-20 03:21:12,544 INFO L226 Difference]: Without dead ends: 246 [2023-12-20 03:21:12,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:21:12,546 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 880 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:12,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 191 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:21:12,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-12-20 03:21:12,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2023-12-20 03:21:12,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.3148936170212766) internal successors, (309), 245 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 03:21:12,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 309 transitions. [2023-12-20 03:21:12,550 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 309 transitions. Word has length 61 [2023-12-20 03:21:12,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:12,550 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 309 transitions. [2023-12-20 03:21:12,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 03:21:12,550 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 309 transitions. [2023-12-20 03:21:12,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-20 03:21:12,551 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:12,551 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] [2023-12-20 03:21:12,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 03:21:12,551 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:12,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:12,552 INFO L85 PathProgramCache]: Analyzing trace with hash -617130845, now seen corresponding path program 1 times [2023-12-20 03:21:12,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:12,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199517729] [2023-12-20 03:21:12,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:12,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:12,762 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 03:21:12,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:12,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199517729] [2023-12-20 03:21:12,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199517729] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:12,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:12,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:21:12,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869113605] [2023-12-20 03:21:12,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:12,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:21:12,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:12,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:21:12,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:21:12,764 INFO L87 Difference]: Start difference. First operand 246 states and 309 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 03:21:13,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:13,252 INFO L93 Difference]: Finished difference Result 580 states and 767 transitions. [2023-12-20 03:21:13,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:21:13,253 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2023-12-20 03:21:13,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:13,254 INFO L225 Difference]: With dead ends: 580 [2023-12-20 03:21:13,254 INFO L226 Difference]: Without dead ends: 492 [2023-12-20 03:21:13,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-20 03:21:13,255 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 1576 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1576 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:13,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1576 Valid, 866 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:21:13,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2023-12-20 03:21:13,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 246. [2023-12-20 03:21:13,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.3106382978723403) internal successors, (308), 245 states have internal predecessors, (308), 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 03:21:13,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 308 transitions. [2023-12-20 03:21:13,259 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 308 transitions. Word has length 62 [2023-12-20 03:21:13,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:13,260 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 308 transitions. [2023-12-20 03:21:13,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 03:21:13,260 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 308 transitions. [2023-12-20 03:21:13,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-20 03:21:13,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:13,260 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] [2023-12-20 03:21:13,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 03:21:13,261 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:13,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:13,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1025976073, now seen corresponding path program 1 times [2023-12-20 03:21:13,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:13,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348610767] [2023-12-20 03:21:13,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:13,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:13,476 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 03:21:13,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:13,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348610767] [2023-12-20 03:21:13,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348610767] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:13,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:13,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:21:13,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576785663] [2023-12-20 03:21:13,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:13,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:21:13,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:13,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:21:13,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:21:13,478 INFO L87 Difference]: Start difference. First operand 246 states and 308 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 03:21:13,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:13,943 INFO L93 Difference]: Finished difference Result 554 states and 733 transitions. [2023-12-20 03:21:13,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:21:13,943 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2023-12-20 03:21:13,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:13,945 INFO L225 Difference]: With dead ends: 554 [2023-12-20 03:21:13,945 INFO L226 Difference]: Without dead ends: 488 [2023-12-20 03:21:13,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:21:13,948 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 1170 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 931 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:13,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 1316 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 931 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:21:13,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-12-20 03:21:13,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 246. [2023-12-20 03:21:13,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.3063829787234043) internal successors, (307), 245 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 03:21:13,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 307 transitions. [2023-12-20 03:21:13,952 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 307 transitions. Word has length 62 [2023-12-20 03:21:13,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:13,952 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 307 transitions. [2023-12-20 03:21:13,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 03:21:13,953 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 307 transitions. [2023-12-20 03:21:13,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-20 03:21:13,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:13,953 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] [2023-12-20 03:21:13,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 03:21:13,953 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:13,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:13,954 INFO L85 PathProgramCache]: Analyzing trace with hash 762232665, now seen corresponding path program 1 times [2023-12-20 03:21:13,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:13,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560468479] [2023-12-20 03:21:13,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:13,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:14,138 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 03:21:14,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:14,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560468479] [2023-12-20 03:21:14,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560468479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:14,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:14,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:21:14,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721284449] [2023-12-20 03:21:14,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:14,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 03:21:14,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:14,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 03:21:14,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:21:14,140 INFO L87 Difference]: Start difference. First operand 246 states and 307 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 6 states have internal predecessors, (62), 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 03:21:14,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:14,453 INFO L93 Difference]: Finished difference Result 485 states and 607 transitions. [2023-12-20 03:21:14,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:21:14,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 6 states have internal predecessors, (62), 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 62 [2023-12-20 03:21:14,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:14,455 INFO L225 Difference]: With dead ends: 485 [2023-12-20 03:21:14,455 INFO L226 Difference]: Without dead ends: 352 [2023-12-20 03:21:14,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:21:14,455 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 1225 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:14,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 619 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:21:14,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-12-20 03:21:14,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 246. [2023-12-20 03:21:14,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.3021276595744682) internal successors, (306), 245 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 03:21:14,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 306 transitions. [2023-12-20 03:21:14,459 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 306 transitions. Word has length 62 [2023-12-20 03:21:14,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:14,459 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 306 transitions. [2023-12-20 03:21:14,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 6 states have internal predecessors, (62), 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 03:21:14,459 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 306 transitions. [2023-12-20 03:21:14,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-20 03:21:14,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:14,460 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] [2023-12-20 03:21:14,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 03:21:14,460 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:14,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:14,460 INFO L85 PathProgramCache]: Analyzing trace with hash 350648810, now seen corresponding path program 1 times [2023-12-20 03:21:14,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:14,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424790317] [2023-12-20 03:21:14,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:14,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:14,629 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 03:21:14,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:14,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424790317] [2023-12-20 03:21:14,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424790317] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:14,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:14,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:21:14,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250783676] [2023-12-20 03:21:14,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:14,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:21:14,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:14,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:21:14,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:21:14,631 INFO L87 Difference]: Start difference. First operand 246 states and 306 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 03:21:15,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:15,126 INFO L93 Difference]: Finished difference Result 539 states and 706 transitions. [2023-12-20 03:21:15,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:21:15,126 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 64 [2023-12-20 03:21:15,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:15,128 INFO L225 Difference]: With dead ends: 539 [2023-12-20 03:21:15,128 INFO L226 Difference]: Without dead ends: 480 [2023-12-20 03:21:15,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:21:15,128 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1112 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:15,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 1247 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:21:15,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-12-20 03:21:15,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 246. [2023-12-20 03:21:15,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.297872340425532) internal successors, (305), 245 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 03:21:15,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 305 transitions. [2023-12-20 03:21:15,132 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 305 transitions. Word has length 64 [2023-12-20 03:21:15,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:15,133 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 305 transitions. [2023-12-20 03:21:15,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 03:21:15,133 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 305 transitions. [2023-12-20 03:21:15,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-20 03:21:15,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:15,133 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] [2023-12-20 03:21:15,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 03:21:15,134 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:15,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:15,134 INFO L85 PathProgramCache]: Analyzing trace with hash -2032121384, now seen corresponding path program 1 times [2023-12-20 03:21:15,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:15,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287370116] [2023-12-20 03:21:15,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:15,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:15,292 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 03:21:15,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:15,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287370116] [2023-12-20 03:21:15,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287370116] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:15,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:15,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:21:15,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997376882] [2023-12-20 03:21:15,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:15,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:21:15,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:15,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:21:15,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:21:15,298 INFO L87 Difference]: Start difference. First operand 246 states and 305 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 03:21:15,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:15,793 INFO L93 Difference]: Finished difference Result 559 states and 734 transitions. [2023-12-20 03:21:15,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:21:15,793 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 64 [2023-12-20 03:21:15,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:15,795 INFO L225 Difference]: With dead ends: 559 [2023-12-20 03:21:15,795 INFO L226 Difference]: Without dead ends: 488 [2023-12-20 03:21:15,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:21:15,797 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1367 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:15,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1367 Valid, 1114 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:21:15,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-12-20 03:21:15,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 246. [2023-12-20 03:21:15,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2936170212765958) internal successors, (304), 245 states have internal predecessors, (304), 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 03:21:15,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 304 transitions. [2023-12-20 03:21:15,801 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 304 transitions. Word has length 64 [2023-12-20 03:21:15,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:15,802 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 304 transitions. [2023-12-20 03:21:15,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 03:21:15,802 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 304 transitions. [2023-12-20 03:21:15,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-20 03:21:15,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:15,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:21:15,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 03:21:15,805 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:15,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:15,805 INFO L85 PathProgramCache]: Analyzing trace with hash 861544116, now seen corresponding path program 1 times [2023-12-20 03:21:15,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:15,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783912462] [2023-12-20 03:21:15,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:15,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:16,017 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 03:21:16,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:16,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783912462] [2023-12-20 03:21:16,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783912462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:16,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:16,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:21:16,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200647012] [2023-12-20 03:21:16,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:16,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:21:16,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:16,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:21:16,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:21:16,019 INFO L87 Difference]: Start difference. First operand 246 states and 304 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 03:21:16,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:16,532 INFO L93 Difference]: Finished difference Result 536 states and 701 transitions. [2023-12-20 03:21:16,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:21:16,533 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 64 [2023-12-20 03:21:16,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:16,534 INFO L225 Difference]: With dead ends: 536 [2023-12-20 03:21:16,534 INFO L226 Difference]: Without dead ends: 480 [2023-12-20 03:21:16,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:21:16,535 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1137 mSDsluCounter, 1035 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:16,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 1271 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:21:16,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-12-20 03:21:16,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 246. [2023-12-20 03:21:16,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2893617021276595) internal successors, (303), 245 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 03:21:16,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 303 transitions. [2023-12-20 03:21:16,538 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 303 transitions. Word has length 64 [2023-12-20 03:21:16,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:16,539 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 303 transitions. [2023-12-20 03:21:16,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 03:21:16,539 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 303 transitions. [2023-12-20 03:21:16,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-20 03:21:16,539 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:16,539 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] [2023-12-20 03:21:16,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 03:21:16,539 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:16,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:16,540 INFO L85 PathProgramCache]: Analyzing trace with hash -404487765, now seen corresponding path program 1 times [2023-12-20 03:21:16,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:16,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780219483] [2023-12-20 03:21:16,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:16,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:16,698 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 03:21:16,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:16,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780219483] [2023-12-20 03:21:16,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780219483] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:16,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:16,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:21:16,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142587990] [2023-12-20 03:21:16,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:16,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:21:16,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:16,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:21:16,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:21:16,699 INFO L87 Difference]: Start difference. First operand 246 states and 303 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 03:21:17,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:17,197 INFO L93 Difference]: Finished difference Result 485 states and 623 transitions. [2023-12-20 03:21:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:21:17,197 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 64 [2023-12-20 03:21:17,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:17,199 INFO L225 Difference]: With dead ends: 485 [2023-12-20 03:21:17,199 INFO L226 Difference]: Without dead ends: 480 [2023-12-20 03:21:17,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:21:17,199 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 1271 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:17,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1271 Valid, 1116 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:21:17,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-12-20 03:21:17,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 246. [2023-12-20 03:21:17,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2851063829787235) internal successors, (302), 245 states have internal predecessors, (302), 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 03:21:17,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 302 transitions. [2023-12-20 03:21:17,203 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 302 transitions. Word has length 64 [2023-12-20 03:21:17,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:17,203 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 302 transitions. [2023-12-20 03:21:17,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 03:21:17,203 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 302 transitions. [2023-12-20 03:21:17,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-20 03:21:17,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:17,204 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] [2023-12-20 03:21:17,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 03:21:17,204 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:17,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:17,204 INFO L85 PathProgramCache]: Analyzing trace with hash 334726124, now seen corresponding path program 1 times [2023-12-20 03:21:17,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:17,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626685905] [2023-12-20 03:21:17,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:17,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:17,345 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 03:21:17,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:17,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626685905] [2023-12-20 03:21:17,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626685905] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:17,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:17,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:21:17,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270039302] [2023-12-20 03:21:17,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:17,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:21:17,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:17,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:21:17,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:21:17,346 INFO L87 Difference]: Start difference. First operand 246 states and 302 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 03:21:17,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:17,826 INFO L93 Difference]: Finished difference Result 586 states and 765 transitions. [2023-12-20 03:21:17,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:21:17,826 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 64 [2023-12-20 03:21:17,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:17,828 INFO L225 Difference]: With dead ends: 586 [2023-12-20 03:21:17,828 INFO L226 Difference]: Without dead ends: 492 [2023-12-20 03:21:17,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:21:17,829 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 949 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:17,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [949 Valid, 1157 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:21:17,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2023-12-20 03:21:17,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 246. [2023-12-20 03:21:17,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2808510638297872) internal successors, (301), 245 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:21:17,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 301 transitions. [2023-12-20 03:21:17,833 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 301 transitions. Word has length 64 [2023-12-20 03:21:17,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:17,833 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 301 transitions. [2023-12-20 03:21:17,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 03:21:17,834 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 301 transitions. [2023-12-20 03:21:17,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-20 03:21:17,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:17,834 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] [2023-12-20 03:21:17,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 03:21:17,835 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:17,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:17,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1265909968, now seen corresponding path program 1 times [2023-12-20 03:21:17,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:17,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016816079] [2023-12-20 03:21:17,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:17,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:17,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:21:17,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:17,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016816079] [2023-12-20 03:21:17,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016816079] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:17,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:17,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:21:17,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806853842] [2023-12-20 03:21:17,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:17,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:21:17,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:17,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:21:17,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:21:17,994 INFO L87 Difference]: Start difference. First operand 246 states and 301 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 03:21:18,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:18,518 INFO L93 Difference]: Finished difference Result 485 states and 620 transitions. [2023-12-20 03:21:18,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:21:18,518 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 64 [2023-12-20 03:21:18,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:18,519 INFO L225 Difference]: With dead ends: 485 [2023-12-20 03:21:18,519 INFO L226 Difference]: Without dead ends: 480 [2023-12-20 03:21:18,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:21:18,520 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 1092 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:18,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 1466 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:21:18,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-12-20 03:21:18,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 246. [2023-12-20 03:21:18,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2765957446808511) internal successors, (300), 245 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:21:18,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 300 transitions. [2023-12-20 03:21:18,526 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 300 transitions. Word has length 64 [2023-12-20 03:21:18,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:18,526 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 300 transitions. [2023-12-20 03:21:18,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 03:21:18,527 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 300 transitions. [2023-12-20 03:21:18,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-20 03:21:18,527 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:18,527 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] [2023-12-20 03:21:18,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 03:21:18,527 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:18,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:18,528 INFO L85 PathProgramCache]: Analyzing trace with hash 646287134, now seen corresponding path program 1 times [2023-12-20 03:21:18,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:18,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749124551] [2023-12-20 03:21:18,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:18,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:18,680 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 03:21:18,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:18,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749124551] [2023-12-20 03:21:18,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749124551] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:18,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:18,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:21:18,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465209496] [2023-12-20 03:21:18,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:18,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:21:18,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:18,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:21:18,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:21:18,682 INFO L87 Difference]: Start difference. First operand 246 states and 300 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 03:21:19,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:19,231 INFO L93 Difference]: Finished difference Result 505 states and 648 transitions. [2023-12-20 03:21:19,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:21:19,231 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 64 [2023-12-20 03:21:19,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:19,233 INFO L225 Difference]: With dead ends: 505 [2023-12-20 03:21:19,233 INFO L226 Difference]: Without dead ends: 488 [2023-12-20 03:21:19,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:21:19,233 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 1099 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:19,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 1672 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:21:19,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-12-20 03:21:19,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 246. [2023-12-20 03:21:19,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2723404255319148) internal successors, (299), 245 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:21:19,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 299 transitions. [2023-12-20 03:21:19,237 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 299 transitions. Word has length 64 [2023-12-20 03:21:19,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:19,237 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 299 transitions. [2023-12-20 03:21:19,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 03:21:19,238 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 299 transitions. [2023-12-20 03:21:19,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-20 03:21:19,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:19,238 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] [2023-12-20 03:21:19,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 03:21:19,238 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:19,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:19,239 INFO L85 PathProgramCache]: Analyzing trace with hash 107558087, now seen corresponding path program 1 times [2023-12-20 03:21:19,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:19,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358441326] [2023-12-20 03:21:19,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:19,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:20,343 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 03:21:20,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:20,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358441326] [2023-12-20 03:21:20,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358441326] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:20,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:20,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2023-12-20 03:21:20,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372603599] [2023-12-20 03:21:20,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:20,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-20 03:21:20,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:20,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-20 03:21:20,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2023-12-20 03:21:20,345 INFO L87 Difference]: Start difference. First operand 246 states and 299 transitions. Second operand has 24 states, 24 states have (on average 2.75) internal successors, (66), 23 states have internal predecessors, (66), 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 03:21:22,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:22,760 INFO L93 Difference]: Finished difference Result 825 states and 1030 transitions. [2023-12-20 03:21:22,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-20 03:21:22,761 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.75) internal successors, (66), 23 states have internal predecessors, (66), 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 66 [2023-12-20 03:21:22,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:22,763 INFO L225 Difference]: With dead ends: 825 [2023-12-20 03:21:22,763 INFO L226 Difference]: Without dead ends: 767 [2023-12-20 03:21:22,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=331, Invalid=1475, Unknown=0, NotChecked=0, Total=1806 [2023-12-20 03:21:22,764 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 2553 mSDsluCounter, 6320 mSDsCounter, 0 mSdLazyCounter, 3438 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2553 SdHoareTripleChecker+Valid, 6926 SdHoareTripleChecker+Invalid, 3441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:22,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2553 Valid, 6926 Invalid, 3441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3438 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-20 03:21:22,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2023-12-20 03:21:22,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 257. [2023-12-20 03:21:22,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 246 states have (on average 1.2723577235772359) internal successors, (313), 256 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 03:21:22,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 313 transitions. [2023-12-20 03:21:22,769 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 313 transitions. Word has length 66 [2023-12-20 03:21:22,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:22,769 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 313 transitions. [2023-12-20 03:21:22,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.75) internal successors, (66), 23 states have internal predecessors, (66), 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 03:21:22,769 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 313 transitions. [2023-12-20 03:21:22,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-20 03:21:22,770 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:22,770 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] [2023-12-20 03:21:22,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 03:21:22,770 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:22,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:22,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1672959061, now seen corresponding path program 1 times [2023-12-20 03:21:22,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:22,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819223590] [2023-12-20 03:21:22,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:22,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:23,061 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 03:21:23,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:23,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819223590] [2023-12-20 03:21:23,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819223590] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:23,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:23,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 03:21:23,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522053541] [2023-12-20 03:21:23,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:23,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 03:21:23,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:23,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 03:21:23,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-20 03:21:23,064 INFO L87 Difference]: Start difference. First operand 257 states and 313 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 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 03:21:23,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:23,399 INFO L93 Difference]: Finished difference Result 611 states and 774 transitions. [2023-12-20 03:21:23,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 03:21:23,400 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 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 66 [2023-12-20 03:21:23,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:23,401 INFO L225 Difference]: With dead ends: 611 [2023-12-20 03:21:23,401 INFO L226 Difference]: Without dead ends: 483 [2023-12-20 03:21:23,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2023-12-20 03:21:23,402 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1452 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:23,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1452 Valid, 1284 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:21:23,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-12-20 03:21:23,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 183. [2023-12-20 03:21:23,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 176 states have (on average 1.2613636363636365) internal successors, (222), 182 states have internal predecessors, (222), 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 03:21:23,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 222 transitions. [2023-12-20 03:21:23,407 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 222 transitions. Word has length 66 [2023-12-20 03:21:23,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:23,407 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 222 transitions. [2023-12-20 03:21:23,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 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 03:21:23,407 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 222 transitions. [2023-12-20 03:21:23,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-20 03:21:23,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:23,408 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] [2023-12-20 03:21:23,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 03:21:23,409 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:23,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:23,409 INFO L85 PathProgramCache]: Analyzing trace with hash 89242274, now seen corresponding path program 1 times [2023-12-20 03:21:23,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:23,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296263631] [2023-12-20 03:21:23,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:23,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:23,756 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 03:21:23,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:23,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296263631] [2023-12-20 03:21:23,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296263631] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:23,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:23,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:21:23,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864652683] [2023-12-20 03:21:23,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:23,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:21:23,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:23,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:21:23,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:21:23,758 INFO L87 Difference]: Start difference. First operand 183 states and 222 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 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 03:21:24,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:24,342 INFO L93 Difference]: Finished difference Result 487 states and 624 transitions. [2023-12-20 03:21:24,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:21:24,342 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 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 66 [2023-12-20 03:21:24,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:24,343 INFO L225 Difference]: With dead ends: 487 [2023-12-20 03:21:24,344 INFO L226 Difference]: Without dead ends: 429 [2023-12-20 03:21:24,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2023-12-20 03:21:24,344 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 1577 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:24,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1577 Valid, 1558 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:21:24,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2023-12-20 03:21:24,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 179. [2023-12-20 03:21:24,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 173 states have (on average 1.254335260115607) internal successors, (217), 178 states have internal predecessors, (217), 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 03:21:24,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 217 transitions. [2023-12-20 03:21:24,347 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 217 transitions. Word has length 66 [2023-12-20 03:21:24,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:24,347 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 217 transitions. [2023-12-20 03:21:24,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 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 03:21:24,347 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 217 transitions. [2023-12-20 03:21:24,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-20 03:21:24,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:24,348 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] [2023-12-20 03:21:24,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 03:21:24,348 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:24,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:24,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1372728877, now seen corresponding path program 1 times [2023-12-20 03:21:24,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:24,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837658117] [2023-12-20 03:21:24,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:24,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:24,676 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 03:21:24,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:24,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837658117] [2023-12-20 03:21:24,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837658117] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:24,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:24,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:21:24,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796926643] [2023-12-20 03:21:24,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:24,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:21:24,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:24,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:21:24,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:21:24,677 INFO L87 Difference]: Start difference. First operand 179 states and 217 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 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 03:21:25,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:25,157 INFO L93 Difference]: Finished difference Result 620 states and 828 transitions. [2023-12-20 03:21:25,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 03:21:25,158 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 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 66 [2023-12-20 03:21:25,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:25,160 INFO L225 Difference]: With dead ends: 620 [2023-12-20 03:21:25,161 INFO L226 Difference]: Without dead ends: 533 [2023-12-20 03:21:25,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:21:25,161 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 1162 mSDsluCounter, 3199 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 3687 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:25,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 3687 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:21:25,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2023-12-20 03:21:25,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 146. [2023-12-20 03:21:25,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 143 states have (on average 1.2517482517482517) internal successors, (179), 145 states have internal predecessors, (179), 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 03:21:25,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 179 transitions. [2023-12-20 03:21:25,171 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 179 transitions. Word has length 66 [2023-12-20 03:21:25,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:25,171 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 179 transitions. [2023-12-20 03:21:25,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 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 03:21:25,171 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 179 transitions. [2023-12-20 03:21:25,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-20 03:21:25,171 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:25,171 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] [2023-12-20 03:21:25,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 03:21:25,172 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:25,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:25,172 INFO L85 PathProgramCache]: Analyzing trace with hash -812946096, now seen corresponding path program 1 times [2023-12-20 03:21:25,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:25,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376636890] [2023-12-20 03:21:25,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:25,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:25,323 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 03:21:25,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:25,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376636890] [2023-12-20 03:21:25,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376636890] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:25,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:25,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:21:25,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331749943] [2023-12-20 03:21:25,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:25,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:21:25,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:25,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:21:25,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:21:25,326 INFO L87 Difference]: Start difference. First operand 146 states and 179 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 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 03:21:25,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:25,505 INFO L93 Difference]: Finished difference Result 228 states and 287 transitions. [2023-12-20 03:21:25,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 03:21:25,506 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 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 67 [2023-12-20 03:21:25,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:25,506 INFO L225 Difference]: With dead ends: 228 [2023-12-20 03:21:25,507 INFO L226 Difference]: Without dead ends: 221 [2023-12-20 03:21:25,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-20 03:21:25,507 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 541 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:25,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 560 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:21:25,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-12-20 03:21:25,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 146. [2023-12-20 03:21:25,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 143 states have (on average 1.2447552447552448) internal successors, (178), 145 states have internal predecessors, (178), 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 03:21:25,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 178 transitions. [2023-12-20 03:21:25,509 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 178 transitions. Word has length 67 [2023-12-20 03:21:25,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:25,510 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 178 transitions. [2023-12-20 03:21:25,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 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 03:21:25,510 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 178 transitions. [2023-12-20 03:21:25,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-20 03:21:25,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:25,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:21:25,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 03:21:25,510 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:25,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:25,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1116116258, now seen corresponding path program 1 times [2023-12-20 03:21:25,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:25,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064603047] [2023-12-20 03:21:25,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:25,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:25,686 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 03:21:25,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:25,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064603047] [2023-12-20 03:21:25,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064603047] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:25,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:25,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:21:25,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932258958] [2023-12-20 03:21:25,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:25,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:21:25,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:25,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:21:25,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:21:25,687 INFO L87 Difference]: Start difference. First operand 146 states and 178 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 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 03:21:25,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:25,964 INFO L93 Difference]: Finished difference Result 311 states and 400 transitions. [2023-12-20 03:21:25,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 03:21:25,964 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 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 67 [2023-12-20 03:21:25,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:25,965 INFO L225 Difference]: With dead ends: 311 [2023-12-20 03:21:25,965 INFO L226 Difference]: Without dead ends: 239 [2023-12-20 03:21:25,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2023-12-20 03:21:25,966 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 650 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:25,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 584 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:21:25,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-12-20 03:21:25,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 146. [2023-12-20 03:21:25,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 143 states have (on average 1.2377622377622377) internal successors, (177), 145 states have internal predecessors, (177), 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 03:21:25,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 177 transitions. [2023-12-20 03:21:25,971 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 177 transitions. Word has length 67 [2023-12-20 03:21:25,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:25,971 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 177 transitions. [2023-12-20 03:21:25,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 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 03:21:25,972 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 177 transitions. [2023-12-20 03:21:25,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-20 03:21:25,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:25,972 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] [2023-12-20 03:21:25,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 03:21:25,972 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:25,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:25,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1523699975, now seen corresponding path program 1 times [2023-12-20 03:21:25,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:25,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106390463] [2023-12-20 03:21:25,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:25,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:26,459 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 03:21:26,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:26,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106390463] [2023-12-20 03:21:26,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106390463] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:26,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:26,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-20 03:21:26,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428499744] [2023-12-20 03:21:26,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:26,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-20 03:21:26,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:26,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-20 03:21:26,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2023-12-20 03:21:26,462 INFO L87 Difference]: Start difference. First operand 146 states and 177 transitions. Second operand has 16 states, 16 states have (on average 4.3125) internal successors, (69), 15 states have internal predecessors, (69), 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 03:21:27,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:27,587 INFO L93 Difference]: Finished difference Result 669 states and 909 transitions. [2023-12-20 03:21:27,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 03:21:27,588 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 15 states have internal predecessors, (69), 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 69 [2023-12-20 03:21:27,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:27,589 INFO L225 Difference]: With dead ends: 669 [2023-12-20 03:21:27,589 INFO L226 Difference]: Without dead ends: 663 [2023-12-20 03:21:27,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=712, Unknown=0, NotChecked=0, Total=930 [2023-12-20 03:21:27,590 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 1698 mSDsluCounter, 2597 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1698 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:27,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1698 Valid, 2950 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:21:27,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2023-12-20 03:21:27,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 164. [2023-12-20 03:21:27,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 161 states have (on average 1.2422360248447204) internal successors, (200), 163 states have internal predecessors, (200), 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 03:21:27,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 200 transitions. [2023-12-20 03:21:27,595 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 200 transitions. Word has length 69 [2023-12-20 03:21:27,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:27,595 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 200 transitions. [2023-12-20 03:21:27,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 15 states have internal predecessors, (69), 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 03:21:27,596 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 200 transitions. [2023-12-20 03:21:27,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-20 03:21:27,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:27,596 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] [2023-12-20 03:21:27,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-20 03:21:27,596 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:27,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:27,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1858906752, now seen corresponding path program 1 times [2023-12-20 03:21:27,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:27,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602256761] [2023-12-20 03:21:27,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:27,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:28,426 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 03:21:28,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:28,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602256761] [2023-12-20 03:21:28,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602256761] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:28,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:28,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-20 03:21:28,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372729100] [2023-12-20 03:21:28,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:28,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-20 03:21:28,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:28,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-20 03:21:28,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2023-12-20 03:21:28,427 INFO L87 Difference]: Start difference. First operand 164 states and 200 transitions. Second operand has 23 states, 23 states have (on average 3.0) internal successors, (69), 22 states have internal predecessors, (69), 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 03:21:29,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:29,971 INFO L93 Difference]: Finished difference Result 508 states and 652 transitions. [2023-12-20 03:21:29,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-20 03:21:29,973 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 22 states have internal predecessors, (69), 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 69 [2023-12-20 03:21:29,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:29,975 INFO L225 Difference]: With dead ends: 508 [2023-12-20 03:21:29,975 INFO L226 Difference]: Without dead ends: 500 [2023-12-20 03:21:29,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=281, Invalid=1359, Unknown=0, NotChecked=0, Total=1640 [2023-12-20 03:21:29,978 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 1601 mSDsluCounter, 4850 mSDsCounter, 0 mSdLazyCounter, 2289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 5277 SdHoareTripleChecker+Invalid, 2289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:29,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 5277 Invalid, 2289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2289 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:21:29,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2023-12-20 03:21:29,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 173. [2023-12-20 03:21:29,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 170 states have (on average 1.2411764705882353) internal successors, (211), 172 states have internal predecessors, (211), 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 03:21:29,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 211 transitions. [2023-12-20 03:21:29,984 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 211 transitions. Word has length 69 [2023-12-20 03:21:29,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:29,984 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 211 transitions. [2023-12-20 03:21:29,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 22 states have internal predecessors, (69), 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 03:21:29,984 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 211 transitions. [2023-12-20 03:21:29,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-20 03:21:29,985 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:29,985 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] [2023-12-20 03:21:29,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-20 03:21:29,985 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:29,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:29,985 INFO L85 PathProgramCache]: Analyzing trace with hash -327269785, now seen corresponding path program 1 times [2023-12-20 03:21:29,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:29,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241943172] [2023-12-20 03:21:29,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:29,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:30,331 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 03:21:30,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:30,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241943172] [2023-12-20 03:21:30,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241943172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:30,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:30,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:21:30,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266264756] [2023-12-20 03:21:30,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:30,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:21:30,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:30,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:21:30,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:21:30,334 INFO L87 Difference]: Start difference. First operand 173 states and 211 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 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 03:21:31,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:31,004 INFO L93 Difference]: Finished difference Result 604 states and 821 transitions. [2023-12-20 03:21:31,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 03:21:31,004 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 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 70 [2023-12-20 03:21:31,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:31,006 INFO L225 Difference]: With dead ends: 604 [2023-12-20 03:21:31,006 INFO L226 Difference]: Without dead ends: 598 [2023-12-20 03:21:31,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:21:31,007 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 1250 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 3008 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:31,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1250 Valid, 3008 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:21:31,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2023-12-20 03:21:31,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 154. [2023-12-20 03:21:31,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 152 states have (on average 1.236842105263158) internal successors, (188), 153 states have internal predecessors, (188), 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 03:21:31,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 188 transitions. [2023-12-20 03:21:31,011 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 188 transitions. Word has length 70 [2023-12-20 03:21:31,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:31,011 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 188 transitions. [2023-12-20 03:21:31,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 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 03:21:31,011 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 188 transitions. [2023-12-20 03:21:31,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-20 03:21:31,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:31,012 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] [2023-12-20 03:21:31,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-20 03:21:31,012 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:31,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:31,012 INFO L85 PathProgramCache]: Analyzing trace with hash 7936992, now seen corresponding path program 1 times [2023-12-20 03:21:31,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:31,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640292417] [2023-12-20 03:21:31,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:31,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:31,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:21:31,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:31,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640292417] [2023-12-20 03:21:31,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640292417] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:31,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:31,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:21:31,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474055023] [2023-12-20 03:21:31,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:31,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:21:31,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:31,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:21:31,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:21:31,389 INFO L87 Difference]: Start difference. First operand 154 states and 188 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 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 03:21:31,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:31,992 INFO L93 Difference]: Finished difference Result 469 states and 636 transitions. [2023-12-20 03:21:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 03:21:31,992 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 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 70 [2023-12-20 03:21:31,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:31,993 INFO L225 Difference]: With dead ends: 469 [2023-12-20 03:21:31,993 INFO L226 Difference]: Without dead ends: 454 [2023-12-20 03:21:31,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:21:31,994 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 965 mSDsluCounter, 2739 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 3122 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:31,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 3122 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:21:31,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2023-12-20 03:21:31,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 128. [2023-12-20 03:21:31,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.2440944881889764) internal successors, (158), 127 states have internal predecessors, (158), 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 03:21:31,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 158 transitions. [2023-12-20 03:21:31,997 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 158 transitions. Word has length 70 [2023-12-20 03:21:31,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:31,997 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 158 transitions. [2023-12-20 03:21:31,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 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 03:21:31,997 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 158 transitions. [2023-12-20 03:21:31,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-20 03:21:31,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:31,998 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] [2023-12-20 03:21:31,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-20 03:21:31,998 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:31,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:31,998 INFO L85 PathProgramCache]: Analyzing trace with hash 258319301, now seen corresponding path program 1 times [2023-12-20 03:21:31,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:31,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166168265] [2023-12-20 03:21:31,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:31,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:32,065 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 03:21:32,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:32,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166168265] [2023-12-20 03:21:32,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166168265] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:32,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:32,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:21:32,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289245798] [2023-12-20 03:21:32,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:32,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 03:21:32,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:32,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 03:21:32,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:21:32,067 INFO L87 Difference]: Start difference. First operand 128 states and 158 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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 03:21:32,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:32,155 INFO L93 Difference]: Finished difference Result 560 states and 790 transitions. [2023-12-20 03:21:32,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 03:21:32,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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 92 [2023-12-20 03:21:32,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:32,156 INFO L225 Difference]: With dead ends: 560 [2023-12-20 03:21:32,156 INFO L226 Difference]: Without dead ends: 506 [2023-12-20 03:21:32,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:21:32,157 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 834 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:32,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 1256 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:21:32,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2023-12-20 03:21:32,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 180. [2023-12-20 03:21:32,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 1.3072625698324023) internal successors, (234), 179 states have internal predecessors, (234), 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 03:21:32,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 234 transitions. [2023-12-20 03:21:32,169 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 234 transitions. Word has length 92 [2023-12-20 03:21:32,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:32,169 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 234 transitions. [2023-12-20 03:21:32,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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 03:21:32,169 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 234 transitions. [2023-12-20 03:21:32,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-20 03:21:32,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:32,170 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] [2023-12-20 03:21:32,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-20 03:21:32,170 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:32,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:32,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1995837309, now seen corresponding path program 1 times [2023-12-20 03:21:32,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:32,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95345444] [2023-12-20 03:21:32,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:32,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:32,241 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 03:21:32,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:32,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95345444] [2023-12-20 03:21:32,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95345444] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:32,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:32,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:21:32,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374554584] [2023-12-20 03:21:32,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:32,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 03:21:32,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:32,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 03:21:32,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:21:32,243 INFO L87 Difference]: Start difference. First operand 180 states and 234 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 03:21:32,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:32,306 INFO L93 Difference]: Finished difference Result 658 states and 931 transitions. [2023-12-20 03:21:32,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 03:21:32,306 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 94 [2023-12-20 03:21:32,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:32,308 INFO L225 Difference]: With dead ends: 658 [2023-12-20 03:21:32,308 INFO L226 Difference]: Without dead ends: 552 [2023-12-20 03:21:32,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 03:21:32,309 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 641 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:32,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 767 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:21:32,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2023-12-20 03:21:32,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 284. [2023-12-20 03:21:32,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 283 states have (on average 1.3674911660777385) internal successors, (387), 283 states have internal predecessors, (387), 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 03:21:32,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 387 transitions. [2023-12-20 03:21:32,318 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 387 transitions. Word has length 94 [2023-12-20 03:21:32,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:32,318 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 387 transitions. [2023-12-20 03:21:32,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 03:21:32,319 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 387 transitions. [2023-12-20 03:21:32,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-20 03:21:32,319 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:32,319 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] [2023-12-20 03:21:32,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-20 03:21:32,320 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:32,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:32,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1133377405, now seen corresponding path program 1 times [2023-12-20 03:21:32,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:32,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107739637] [2023-12-20 03:21:32,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:32,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:32,390 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 03:21:32,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:32,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107739637] [2023-12-20 03:21:32,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107739637] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:32,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:32,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:21:32,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061627415] [2023-12-20 03:21:32,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:32,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 03:21:32,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:32,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 03:21:32,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:21:32,393 INFO L87 Difference]: Start difference. First operand 284 states and 387 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 03:21:32,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:32,448 INFO L93 Difference]: Finished difference Result 762 states and 1084 transitions. [2023-12-20 03:21:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 03:21:32,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 94 [2023-12-20 03:21:32,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:32,450 INFO L225 Difference]: With dead ends: 762 [2023-12-20 03:21:32,450 INFO L226 Difference]: Without dead ends: 656 [2023-12-20 03:21:32,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 03:21:32,452 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 642 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:32,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 700 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:21:32,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2023-12-20 03:21:32,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 440. [2023-12-20 03:21:32,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 439 states have (on average 1.4031890660592254) internal successors, (616), 439 states have internal predecessors, (616), 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 03:21:32,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 616 transitions. [2023-12-20 03:21:32,460 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 616 transitions. Word has length 94 [2023-12-20 03:21:32,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:32,460 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 616 transitions. [2023-12-20 03:21:32,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 03:21:32,460 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 616 transitions. [2023-12-20 03:21:32,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-20 03:21:32,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:32,461 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] [2023-12-20 03:21:32,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-20 03:21:32,461 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:32,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:32,461 INFO L85 PathProgramCache]: Analyzing trace with hash 2140031494, now seen corresponding path program 1 times [2023-12-20 03:21:32,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:32,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783048824] [2023-12-20 03:21:32,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:32,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:32,579 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 03:21:32,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:32,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783048824] [2023-12-20 03:21:32,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783048824] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:32,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:32,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:21:32,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244932985] [2023-12-20 03:21:32,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:32,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 03:21:32,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:32,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 03:21:32,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:21:32,581 INFO L87 Difference]: Start difference. First operand 440 states and 616 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 03:21:32,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:32,646 INFO L93 Difference]: Finished difference Result 808 states and 1154 transitions. [2023-12-20 03:21:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 03:21:32,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 94 [2023-12-20 03:21:32,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:32,648 INFO L225 Difference]: With dead ends: 808 [2023-12-20 03:21:32,648 INFO L226 Difference]: Without dead ends: 442 [2023-12-20 03:21:32,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:21:32,648 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 74 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:32,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 449 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:21:32,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-12-20 03:21:32,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 440. [2023-12-20 03:21:32,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 439 states have (on average 1.3940774487471526) internal successors, (612), 439 states have internal predecessors, (612), 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 03:21:32,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 612 transitions. [2023-12-20 03:21:32,654 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 612 transitions. Word has length 94 [2023-12-20 03:21:32,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:32,654 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 612 transitions. [2023-12-20 03:21:32,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 03:21:32,654 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 612 transitions. [2023-12-20 03:21:32,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-20 03:21:32,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:32,655 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] [2023-12-20 03:21:32,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-20 03:21:32,655 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:32,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:32,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1370738501, now seen corresponding path program 1 times [2023-12-20 03:21:32,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:32,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094658966] [2023-12-20 03:21:32,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:32,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:32,691 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 03:21:32,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:32,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094658966] [2023-12-20 03:21:32,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094658966] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:32,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:32,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:21:32,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613150900] [2023-12-20 03:21:32,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:32,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:21:32,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:32,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:21:32,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:21:32,693 INFO L87 Difference]: Start difference. First operand 440 states and 612 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 03:21:32,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:32,707 INFO L93 Difference]: Finished difference Result 1127 states and 1603 transitions. [2023-12-20 03:21:32,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:21:32,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2023-12-20 03:21:32,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:32,709 INFO L225 Difference]: With dead ends: 1127 [2023-12-20 03:21:32,709 INFO L226 Difference]: Without dead ends: 761 [2023-12-20 03:21:32,711 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 03:21:32,711 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 66 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:32,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 363 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:21:32,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2023-12-20 03:21:32,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 759. [2023-12-20 03:21:32,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 759 states, 758 states have (on average 1.391820580474934) internal successors, (1055), 758 states have internal predecessors, (1055), 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 03:21:32,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1055 transitions. [2023-12-20 03:21:32,719 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1055 transitions. Word has length 94 [2023-12-20 03:21:32,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:32,719 INFO L495 AbstractCegarLoop]: Abstraction has 759 states and 1055 transitions. [2023-12-20 03:21:32,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 03:21:32,719 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1055 transitions. [2023-12-20 03:21:32,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-20 03:21:32,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:32,720 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] [2023-12-20 03:21:32,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-20 03:21:32,720 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:32,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:32,720 INFO L85 PathProgramCache]: Analyzing trace with hash 257200399, now seen corresponding path program 1 times [2023-12-20 03:21:32,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:32,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259796768] [2023-12-20 03:21:32,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:32,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:32,812 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 03:21:32,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:32,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259796768] [2023-12-20 03:21:32,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259796768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:32,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:32,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:21:32,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097127304] [2023-12-20 03:21:32,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:32,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 03:21:32,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:32,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 03:21:32,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:21:32,813 INFO L87 Difference]: Start difference. First operand 759 states and 1055 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 03:21:32,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:32,874 INFO L93 Difference]: Finished difference Result 1549 states and 2180 transitions. [2023-12-20 03:21:32,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 03:21:32,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 94 [2023-12-20 03:21:32,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:32,877 INFO L225 Difference]: With dead ends: 1549 [2023-12-20 03:21:32,877 INFO L226 Difference]: Without dead ends: 1352 [2023-12-20 03:21:32,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 03:21:32,879 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 609 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:32,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 744 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:21:32,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2023-12-20 03:21:32,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 954. [2023-12-20 03:21:32,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 953 states have (on average 1.3987408184679957) internal successors, (1333), 953 states have internal predecessors, (1333), 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 03:21:32,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1333 transitions. [2023-12-20 03:21:32,893 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1333 transitions. Word has length 94 [2023-12-20 03:21:32,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:32,893 INFO L495 AbstractCegarLoop]: Abstraction has 954 states and 1333 transitions. [2023-12-20 03:21:32,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 03:21:32,893 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1333 transitions. [2023-12-20 03:21:32,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-20 03:21:32,894 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:32,894 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] [2023-12-20 03:21:32,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-20 03:21:32,894 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:32,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:32,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1322748169, now seen corresponding path program 1 times [2023-12-20 03:21:32,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:32,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985640923] [2023-12-20 03:21:32,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:32,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:32,970 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 03:21:32,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:32,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985640923] [2023-12-20 03:21:32,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985640923] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:32,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:32,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:21:32,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612235081] [2023-12-20 03:21:32,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:32,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 03:21:32,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:32,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 03:21:32,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:21:32,971 INFO L87 Difference]: Start difference. First operand 954 states and 1333 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 03:21:33,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:33,037 INFO L93 Difference]: Finished difference Result 1744 states and 2458 transitions. [2023-12-20 03:21:33,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 03:21:33,038 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 94 [2023-12-20 03:21:33,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:33,042 INFO L225 Difference]: With dead ends: 1744 [2023-12-20 03:21:33,042 INFO L226 Difference]: Without dead ends: 1547 [2023-12-20 03:21:33,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 03:21:33,042 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 579 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:33,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 794 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:21:33,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2023-12-20 03:21:33,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1149. [2023-12-20 03:21:33,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 1148 states have (on average 1.4033101045296168) internal successors, (1611), 1148 states have internal predecessors, (1611), 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 03:21:33,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1611 transitions. [2023-12-20 03:21:33,059 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1611 transitions. Word has length 94 [2023-12-20 03:21:33,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:33,059 INFO L495 AbstractCegarLoop]: Abstraction has 1149 states and 1611 transitions. [2023-12-20 03:21:33,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 03:21:33,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1611 transitions. [2023-12-20 03:21:33,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:21:33,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:33,060 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] [2023-12-20 03:21:33,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-20 03:21:33,060 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:33,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:33,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1857299327, now seen corresponding path program 1 times [2023-12-20 03:21:33,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:33,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536734802] [2023-12-20 03:21:33,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:33,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:33,121 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 03:21:33,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:33,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536734802] [2023-12-20 03:21:33,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536734802] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:33,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:33,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:21:33,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775662153] [2023-12-20 03:21:33,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:33,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:21:33,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:33,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:21:33,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:21:33,123 INFO L87 Difference]: Start difference. First operand 1149 states and 1611 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 03:21:33,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:33,138 INFO L93 Difference]: Finished difference Result 2881 states and 4058 transitions. [2023-12-20 03:21:33,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:21:33,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2023-12-20 03:21:33,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:33,141 INFO L225 Difference]: With dead ends: 2881 [2023-12-20 03:21:33,142 INFO L226 Difference]: Without dead ends: 1806 [2023-12-20 03:21:33,143 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 03:21:33,143 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 77 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:33,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 339 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:21:33,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1806 states. [2023-12-20 03:21:33,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1806 to 1716. [2023-12-20 03:21:33,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1716 states, 1715 states have (on average 1.3953352769679301) internal successors, (2393), 1715 states have internal predecessors, (2393), 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 03:21:33,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1716 states to 1716 states and 2393 transitions. [2023-12-20 03:21:33,172 INFO L78 Accepts]: Start accepts. Automaton has 1716 states and 2393 transitions. Word has length 95 [2023-12-20 03:21:33,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:33,172 INFO L495 AbstractCegarLoop]: Abstraction has 1716 states and 2393 transitions. [2023-12-20 03:21:33,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 03:21:33,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1716 states and 2393 transitions. [2023-12-20 03:21:33,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-20 03:21:33,173 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:33,173 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] [2023-12-20 03:21:33,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-20 03:21:33,173 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:33,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:33,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1350299432, now seen corresponding path program 1 times [2023-12-20 03:21:33,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:33,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183670707] [2023-12-20 03:21:33,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:33,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:33,227 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 03:21:33,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:33,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183670707] [2023-12-20 03:21:33,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183670707] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:33,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:33,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:21:33,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755445324] [2023-12-20 03:21:33,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:33,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:21:33,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:33,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:21:33,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:21:33,229 INFO L87 Difference]: Start difference. First operand 1716 states and 2393 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 03:21:33,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:33,247 INFO L93 Difference]: Finished difference Result 4868 states and 6790 transitions. [2023-12-20 03:21:33,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:21:33,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2023-12-20 03:21:33,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:33,254 INFO L225 Difference]: With dead ends: 4868 [2023-12-20 03:21:33,254 INFO L226 Difference]: Without dead ends: 3226 [2023-12-20 03:21:33,255 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 03:21:33,256 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 70 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:33,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 339 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:21:33,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3226 states. [2023-12-20 03:21:33,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3226 to 3092. [2023-12-20 03:21:33,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3092 states, 3091 states have (on average 1.3836945972177288) internal successors, (4277), 3091 states have internal predecessors, (4277), 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 03:21:33,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3092 states to 3092 states and 4277 transitions. [2023-12-20 03:21:33,292 INFO L78 Accepts]: Start accepts. Automaton has 3092 states and 4277 transitions. Word has length 96 [2023-12-20 03:21:33,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:33,293 INFO L495 AbstractCegarLoop]: Abstraction has 3092 states and 4277 transitions. [2023-12-20 03:21:33,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 03:21:33,293 INFO L276 IsEmpty]: Start isEmpty. Operand 3092 states and 4277 transitions. [2023-12-20 03:21:33,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:21:33,293 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:33,293 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] [2023-12-20 03:21:33,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-20 03:21:33,293 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:33,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:33,294 INFO L85 PathProgramCache]: Analyzing trace with hash 962335532, now seen corresponding path program 1 times [2023-12-20 03:21:33,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:33,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568381406] [2023-12-20 03:21:33,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:33,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:33,348 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 03:21:33,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:33,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568381406] [2023-12-20 03:21:33,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568381406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:33,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:33,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:21:33,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056293619] [2023-12-20 03:21:33,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:33,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:21:33,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:33,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:21:33,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:21:33,350 INFO L87 Difference]: Start difference. First operand 3092 states and 4277 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 03:21:33,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:33,378 INFO L93 Difference]: Finished difference Result 8864 states and 12211 transitions. [2023-12-20 03:21:33,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:21:33,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2023-12-20 03:21:33,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:33,401 INFO L225 Difference]: With dead ends: 8864 [2023-12-20 03:21:33,401 INFO L226 Difference]: Without dead ends: 5846 [2023-12-20 03:21:33,404 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 03:21:33,404 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 63 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:33,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 338 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:21:33,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5846 states. [2023-12-20 03:21:33,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5846 to 5580. [2023-12-20 03:21:33,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5580 states, 5579 states have (on average 1.3651191969887078) internal successors, (7616), 5579 states have internal predecessors, (7616), 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 03:21:33,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5580 states to 5580 states and 7616 transitions. [2023-12-20 03:21:33,470 INFO L78 Accepts]: Start accepts. Automaton has 5580 states and 7616 transitions. Word has length 97 [2023-12-20 03:21:33,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:33,470 INFO L495 AbstractCegarLoop]: Abstraction has 5580 states and 7616 transitions. [2023-12-20 03:21:33,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 03:21:33,470 INFO L276 IsEmpty]: Start isEmpty. Operand 5580 states and 7616 transitions. [2023-12-20 03:21:33,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:21:33,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:33,471 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] [2023-12-20 03:21:33,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-20 03:21:33,471 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:33,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:33,471 INFO L85 PathProgramCache]: Analyzing trace with hash 171833001, now seen corresponding path program 1 times [2023-12-20 03:21:33,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:33,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613649568] [2023-12-20 03:21:33,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:33,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:33,536 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 03:21:33,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:33,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613649568] [2023-12-20 03:21:33,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613649568] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:33,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:33,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:21:33,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295560982] [2023-12-20 03:21:33,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:33,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:21:33,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:33,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:21:33,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:21:33,537 INFO L87 Difference]: Start difference. First operand 5580 states and 7616 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 03:21:33,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:33,579 INFO L93 Difference]: Finished difference Result 16064 states and 21766 transitions. [2023-12-20 03:21:33,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:21:33,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 98 [2023-12-20 03:21:33,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:33,591 INFO L225 Difference]: With dead ends: 16064 [2023-12-20 03:21:33,591 INFO L226 Difference]: Without dead ends: 10558 [2023-12-20 03:21:33,596 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 03:21:33,597 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 53 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:33,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 336 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:21:33,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10558 states. [2023-12-20 03:21:33,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10558 to 10028. [2023-12-20 03:21:33,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10028 states, 10027 states have (on average 1.3399820484691334) internal successors, (13436), 10027 states have internal predecessors, (13436), 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 03:21:33,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10028 states to 10028 states and 13436 transitions. [2023-12-20 03:21:33,757 INFO L78 Accepts]: Start accepts. Automaton has 10028 states and 13436 transitions. Word has length 98 [2023-12-20 03:21:33,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:33,757 INFO L495 AbstractCegarLoop]: Abstraction has 10028 states and 13436 transitions. [2023-12-20 03:21:33,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 03:21:33,757 INFO L276 IsEmpty]: Start isEmpty. Operand 10028 states and 13436 transitions. [2023-12-20 03:21:33,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 03:21:33,758 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:33,758 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] [2023-12-20 03:21:33,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-20 03:21:33,759 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:33,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:33,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1861913153, now seen corresponding path program 1 times [2023-12-20 03:21:33,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:33,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275268362] [2023-12-20 03:21:33,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:33,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:33,875 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 03:21:33,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:33,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275268362] [2023-12-20 03:21:33,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275268362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:33,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:33,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:21:33,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430503417] [2023-12-20 03:21:33,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:33,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 03:21:33,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:33,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 03:21:33,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:21:33,876 INFO L87 Difference]: Start difference. First operand 10028 states and 13436 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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 03:21:33,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:33,947 INFO L93 Difference]: Finished difference Result 15534 states and 20743 transitions. [2023-12-20 03:21:33,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 03:21:33,947 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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 99 [2023-12-20 03:21:33,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:33,964 INFO L225 Difference]: With dead ends: 15534 [2023-12-20 03:21:33,964 INFO L226 Difference]: Without dead ends: 15532 [2023-12-20 03:21:33,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-20 03:21:33,969 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 256 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:33,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 797 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:21:33,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15532 states. [2023-12-20 03:21:34,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15532 to 10268. [2023-12-20 03:21:34,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10268 states, 10267 states have (on average 1.3226843284308951) internal successors, (13580), 10267 states have internal predecessors, (13580), 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 03:21:34,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10268 states to 10268 states and 13580 transitions. [2023-12-20 03:21:34,099 INFO L78 Accepts]: Start accepts. Automaton has 10268 states and 13580 transitions. Word has length 99 [2023-12-20 03:21:34,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:34,099 INFO L495 AbstractCegarLoop]: Abstraction has 10268 states and 13580 transitions. [2023-12-20 03:21:34,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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 03:21:34,099 INFO L276 IsEmpty]: Start isEmpty. Operand 10268 states and 13580 transitions. [2023-12-20 03:21:34,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 03:21:34,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:34,100 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] [2023-12-20 03:21:34,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-20 03:21:34,100 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:34,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:34,100 INFO L85 PathProgramCache]: Analyzing trace with hash -6167163, now seen corresponding path program 1 times [2023-12-20 03:21:34,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:34,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965767228] [2023-12-20 03:21:34,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:34,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:34,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:34,131 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 03:21:34,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:34,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965767228] [2023-12-20 03:21:34,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965767228] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:34,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:21:34,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:21:34,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918844744] [2023-12-20 03:21:34,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:34,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:21:34,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:34,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:21:34,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:21:34,133 INFO L87 Difference]: Start difference. First operand 10268 states and 13580 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 03:21:34,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:34,190 INFO L93 Difference]: Finished difference Result 20784 states and 27510 transitions. [2023-12-20 03:21:34,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:21:34,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 99 [2023-12-20 03:21:34,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:34,202 INFO L225 Difference]: With dead ends: 20784 [2023-12-20 03:21:34,202 INFO L226 Difference]: Without dead ends: 10590 [2023-12-20 03:21:34,210 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 03:21:34,211 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 86 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:34,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 278 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:21:34,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10590 states. [2023-12-20 03:21:34,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10590 to 10588. [2023-12-20 03:21:34,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10588 states, 10587 states have (on average 1.3057523377727402) internal successors, (13824), 10587 states have internal predecessors, (13824), 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 03:21:34,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10588 states to 10588 states and 13824 transitions. [2023-12-20 03:21:34,312 INFO L78 Accepts]: Start accepts. Automaton has 10588 states and 13824 transitions. Word has length 99 [2023-12-20 03:21:34,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:34,312 INFO L495 AbstractCegarLoop]: Abstraction has 10588 states and 13824 transitions. [2023-12-20 03:21:34,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 03:21:34,313 INFO L276 IsEmpty]: Start isEmpty. Operand 10588 states and 13824 transitions. [2023-12-20 03:21:34,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-20 03:21:34,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:34,314 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:21:34,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-20 03:21:34,314 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:34,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:34,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1453084349, now seen corresponding path program 1 times [2023-12-20 03:21:34,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:34,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126654870] [2023-12-20 03:21:34,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:34,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:34,523 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:21:34,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:34,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126654870] [2023-12-20 03:21:34,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126654870] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:21:34,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818673374] [2023-12-20 03:21:34,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:34,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:21:34,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:21:34,530 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:21:34,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 03:21:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:34,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 03:21:34,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:21:35,201 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:21:35,201 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:21:36,025 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:21:36,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818673374] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:21:36,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:21:36,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 11] total 27 [2023-12-20 03:21:36,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306143037] [2023-12-20 03:21:36,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:21:36,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-20 03:21:36,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:36,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-20 03:21:36,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2023-12-20 03:21:36,027 INFO L87 Difference]: Start difference. First operand 10588 states and 13824 transitions. Second operand has 28 states, 28 states have (on average 11.857142857142858) internal successors, (332), 27 states have internal predecessors, (332), 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 03:21:40,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:40,321 INFO L93 Difference]: Finished difference Result 112292 states and 144206 transitions. [2023-12-20 03:21:40,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-20 03:21:40,321 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 11.857142857142858) internal successors, (332), 27 states have internal predecessors, (332), 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 126 [2023-12-20 03:21:40,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:40,471 INFO L225 Difference]: With dead ends: 112292 [2023-12-20 03:21:40,471 INFO L226 Difference]: Without dead ends: 101778 [2023-12-20 03:21:40,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5221 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=3145, Invalid=12605, Unknown=0, NotChecked=0, Total=15750 [2023-12-20 03:21:40,516 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 5870 mSDsluCounter, 2273 mSDsCounter, 0 mSdLazyCounter, 2181 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5870 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 2209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:40,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5870 Valid, 2414 Invalid, 2209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2181 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:21:40,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101778 states. [2023-12-20 03:21:41,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101778 to 22471. [2023-12-20 03:21:41,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22471 states, 22470 states have (on average 1.2975077881619939) internal successors, (29155), 22470 states have internal predecessors, (29155), 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 03:21:41,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22471 states to 22471 states and 29155 transitions. [2023-12-20 03:21:41,322 INFO L78 Accepts]: Start accepts. Automaton has 22471 states and 29155 transitions. Word has length 126 [2023-12-20 03:21:41,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:41,322 INFO L495 AbstractCegarLoop]: Abstraction has 22471 states and 29155 transitions. [2023-12-20 03:21:41,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 11.857142857142858) internal successors, (332), 27 states have internal predecessors, (332), 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 03:21:41,323 INFO L276 IsEmpty]: Start isEmpty. Operand 22471 states and 29155 transitions. [2023-12-20 03:21:41,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-20 03:21:41,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:41,326 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:21:41,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 03:21:41,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-12-20 03:21:41,534 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:41,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:41,534 INFO L85 PathProgramCache]: Analyzing trace with hash 137547186, now seen corresponding path program 1 times [2023-12-20 03:21:41,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:41,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330614132] [2023-12-20 03:21:41,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:41,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:42,231 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:21:42,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:42,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330614132] [2023-12-20 03:21:42,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330614132] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:21:42,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392674485] [2023-12-20 03:21:42,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:42,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:21:42,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:21:42,232 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:21:42,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 03:21:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:42,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-20 03:21:42,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:21:42,742 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-20 03:21:42,742 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 03:21:42,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392674485] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:21:42,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 03:21:42,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2023-12-20 03:21:42,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958610720] [2023-12-20 03:21:42,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:21:42,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:21:42,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:42,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:21:42,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2023-12-20 03:21:42,743 INFO L87 Difference]: Start difference. First operand 22471 states and 29155 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 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 03:21:43,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:43,143 INFO L93 Difference]: Finished difference Result 67277 states and 87321 transitions. [2023-12-20 03:21:43,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 03:21:43,144 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 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 127 [2023-12-20 03:21:43,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:43,188 INFO L225 Difference]: With dead ends: 67277 [2023-12-20 03:21:43,188 INFO L226 Difference]: Without dead ends: 44881 [2023-12-20 03:21:43,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=587, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:21:43,218 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 408 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:43,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 479 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:21:43,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44881 states. [2023-12-20 03:21:43,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44881 to 22471. [2023-12-20 03:21:43,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22471 states, 22470 states have (on average 1.2974632843791722) internal successors, (29154), 22470 states have internal predecessors, (29154), 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 03:21:43,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22471 states to 22471 states and 29154 transitions. [2023-12-20 03:21:43,691 INFO L78 Accepts]: Start accepts. Automaton has 22471 states and 29154 transitions. Word has length 127 [2023-12-20 03:21:43,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:43,691 INFO L495 AbstractCegarLoop]: Abstraction has 22471 states and 29154 transitions. [2023-12-20 03:21:43,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 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 03:21:43,692 INFO L276 IsEmpty]: Start isEmpty. Operand 22471 states and 29154 transitions. [2023-12-20 03:21:43,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-20 03:21:43,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:21:43,699 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:21:43,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 03:21:43,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-12-20 03:21:43,905 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:21:43,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:21:43,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1100659880, now seen corresponding path program 1 times [2023-12-20 03:21:43,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:21:43,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576343055] [2023-12-20 03:21:43,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:43,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:21:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:44,382 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:21:44,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:21:44,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576343055] [2023-12-20 03:21:44,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576343055] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:21:44,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529682904] [2023-12-20 03:21:44,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:21:44,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:21:44,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:21:44,384 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:21:44,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 03:21:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:21:44,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-20 03:21:44,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:21:45,236 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:21:45,236 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:21:46,155 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:21:46,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529682904] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:21:46,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:21:46,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 28 [2023-12-20 03:21:46,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422811481] [2023-12-20 03:21:46,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:21:46,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-20 03:21:46,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:21:46,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-20 03:21:46,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=722, Unknown=0, NotChecked=0, Total=812 [2023-12-20 03:21:46,157 INFO L87 Difference]: Start difference. First operand 22471 states and 29154 transitions. Second operand has 29 states, 29 states have (on average 12.137931034482758) internal successors, (352), 28 states have internal predecessors, (352), 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 03:22:49,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:22:49,752 INFO L93 Difference]: Finished difference Result 636662 states and 809620 transitions. [2023-12-20 03:22:49,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 720 states. [2023-12-20 03:22:49,753 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 12.137931034482758) internal successors, (352), 28 states have internal predecessors, (352), 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 128 [2023-12-20 03:22:49,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:22:50,900 INFO L225 Difference]: With dead ends: 636662 [2023-12-20 03:22:50,900 INFO L226 Difference]: Without dead ends: 614272 [2023-12-20 03:22:51,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 983 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 745 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255223 ImplicationChecksByTransitivity, 56.6s TimeCoverageRelationStatistics Valid=44574, Invalid=512688, Unknown=0, NotChecked=0, Total=557262 [2023-12-20 03:22:51,024 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 11004 mSDsluCounter, 5160 mSDsCounter, 0 mSdLazyCounter, 7651 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11004 SdHoareTripleChecker+Valid, 5532 SdHoareTripleChecker+Invalid, 7731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 7651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:22:51,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11004 Valid, 5532 Invalid, 7731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 7651 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-20 03:22:51,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614272 states. [2023-12-20 03:22:55,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614272 to 130918. [2023-12-20 03:22:55,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130918 states, 130917 states have (on average 1.2937510025435963) internal successors, (169374), 130917 states have internal predecessors, (169374), 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 03:22:55,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130918 states to 130918 states and 169374 transitions. [2023-12-20 03:22:55,658 INFO L78 Accepts]: Start accepts. Automaton has 130918 states and 169374 transitions. Word has length 128 [2023-12-20 03:22:55,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:22:55,658 INFO L495 AbstractCegarLoop]: Abstraction has 130918 states and 169374 transitions. [2023-12-20 03:22:55,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 12.137931034482758) internal successors, (352), 28 states have internal predecessors, (352), 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 03:22:55,658 INFO L276 IsEmpty]: Start isEmpty. Operand 130918 states and 169374 transitions. [2023-12-20 03:22:55,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-20 03:22:55,674 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:22:55,674 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:22:55,680 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-20 03:22:55,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-12-20 03:22:55,880 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:22:55,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:22:55,880 INFO L85 PathProgramCache]: Analyzing trace with hash -855012264, now seen corresponding path program 1 times [2023-12-20 03:22:55,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:22:55,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680463965] [2023-12-20 03:22:55,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:22:55,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:22:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:22:56,244 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:22:56,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:22:56,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680463965] [2023-12-20 03:22:56,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680463965] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:22:56,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439689279] [2023-12-20 03:22:56,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:22:56,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:22:56,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:22:56,246 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:22:56,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 03:22:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:22:56,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-20 03:22:56,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:22:57,598 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:22:57,598 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:22:58,587 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:22:58,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439689279] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:22:58,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:22:58,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-12-20 03:22:58,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335073947] [2023-12-20 03:22:58,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:22:58,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-20 03:22:58,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:22:58,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-20 03:22:58,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=876, Unknown=0, NotChecked=0, Total=992 [2023-12-20 03:22:58,590 INFO L87 Difference]: Start difference. First operand 130918 states and 169374 transitions. Second operand has 32 states, 32 states have (on average 10.90625) internal successors, (349), 31 states have internal predecessors, (349), 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 03:23:37,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:23:37,884 INFO L93 Difference]: Finished difference Result 1813893 states and 2306548 transitions. [2023-12-20 03:23:37,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 442 states. [2023-12-20 03:23:37,885 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 10.90625) internal successors, (349), 31 states have internal predecessors, (349), 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 129 [2023-12-20 03:23:37,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:23:41,047 INFO L225 Difference]: With dead ends: 1813893 [2023-12-20 03:23:41,048 INFO L226 Difference]: Without dead ends: 1683128 [2023-12-20 03:23:41,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 470 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95262 ImplicationChecksByTransitivity, 30.4s TimeCoverageRelationStatistics Valid=25340, Invalid=196972, Unknown=0, NotChecked=0, Total=222312 [2023-12-20 03:23:41,331 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 13457 mSDsluCounter, 3301 mSDsCounter, 0 mSdLazyCounter, 5579 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13457 SdHoareTripleChecker+Valid, 3563 SdHoareTripleChecker+Invalid, 5757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 5579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:23:41,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13457 Valid, 3563 Invalid, 5757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 5579 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-20 03:23:42,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683128 states. [2023-12-20 03:23:52,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683128 to 319870. [2023-12-20 03:23:52,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319870 states, 319869 states have (on average 1.2925103714333055) internal successors, (413434), 319869 states have internal predecessors, (413434), 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 03:23:53,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319870 states to 319870 states and 413434 transitions. [2023-12-20 03:23:53,949 INFO L78 Accepts]: Start accepts. Automaton has 319870 states and 413434 transitions. Word has length 129 [2023-12-20 03:23:53,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:23:53,950 INFO L495 AbstractCegarLoop]: Abstraction has 319870 states and 413434 transitions. [2023-12-20 03:23:53,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 10.90625) internal successors, (349), 31 states have internal predecessors, (349), 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 03:23:53,950 INFO L276 IsEmpty]: Start isEmpty. Operand 319870 states and 413434 transitions. [2023-12-20 03:23:53,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-20 03:23:53,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:23:53,969 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:23:53,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-20 03:23:54,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:23:54,175 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:23:54,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:23:54,181 INFO L85 PathProgramCache]: Analyzing trace with hash -2109226735, now seen corresponding path program 1 times [2023-12-20 03:23:54,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:23:54,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157052467] [2023-12-20 03:23:54,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:23:54,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:23:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:23:54,275 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 03:23:54,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:23:54,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157052467] [2023-12-20 03:23:54,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157052467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:23:54,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:23:54,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:23:54,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332018335] [2023-12-20 03:23:54,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:23:54,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:23:54,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:23:54,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:23:54,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:23:54,277 INFO L87 Difference]: Start difference. First operand 319870 states and 413434 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 03:23:56,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:23:56,324 INFO L93 Difference]: Finished difference Result 586302 states and 758581 transitions. [2023-12-20 03:23:56,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:23:56,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 131 [2023-12-20 03:23:56,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:23:56,801 INFO L225 Difference]: With dead ends: 586302 [2023-12-20 03:23:56,802 INFO L226 Difference]: Without dead ends: 266621 [2023-12-20 03:23:57,299 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 03:23:57,301 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 106 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:23:57,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 164 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:23:57,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266621 states. [2023-12-20 03:23:59,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266621 to 266621. [2023-12-20 03:24:00,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266621 states, 266620 states have (on average 1.2795926787187757) internal successors, (341165), 266620 states have internal predecessors, (341165), 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 03:24:01,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266621 states to 266621 states and 341165 transitions. [2023-12-20 03:24:01,055 INFO L78 Accepts]: Start accepts. Automaton has 266621 states and 341165 transitions. Word has length 131 [2023-12-20 03:24:01,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:24:01,056 INFO L495 AbstractCegarLoop]: Abstraction has 266621 states and 341165 transitions. [2023-12-20 03:24:01,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 03:24:01,056 INFO L276 IsEmpty]: Start isEmpty. Operand 266621 states and 341165 transitions. [2023-12-20 03:24:01,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-20 03:24:01,075 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:24:01,076 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:24:01,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-20 03:24:01,076 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-20 03:24:01,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:24:01,080 INFO L85 PathProgramCache]: Analyzing trace with hash 433457343, now seen corresponding path program 1 times [2023-12-20 03:24:01,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:24:01,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037991683] [2023-12-20 03:24:01,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:24:01,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:24:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:24:02,068 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:24:02,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:24:02,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037991683] [2023-12-20 03:24:02,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037991683] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:24:02,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742874187] [2023-12-20 03:24:02,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:24:02,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:24:02,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:24:02,070 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:24:02,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 03:24:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:24:02,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-20 03:24:02,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:24:02,944 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:24:02,944 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:24:03,696 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:24:03,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742874187] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:24:03,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:24:03,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 11, 11] total 43 [2023-12-20 03:24:03,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098260860] [2023-12-20 03:24:03,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:24:03,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-12-20 03:24:03,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:24:03,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-12-20 03:24:03,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1664, Unknown=0, NotChecked=0, Total=1806 [2023-12-20 03:24:03,701 INFO L87 Difference]: Start difference. First operand 266621 states and 341165 transitions. Second operand has 43 states, 43 states have (on average 8.209302325581396) internal successors, (353), 43 states have internal predecessors, (353), 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)